Access an SQL db via the TFile interface.
The main motivation for the TSQLFile development is to have "transparent" access to SQL data base via standard TFile interface. The main approach that each class (but not each object) has one or two tables with names like _ver$(VERSION) and _raw$(VERSION) For example: TAxis_ver8 or TList_raw5 Second kind of tables appears, when some of class members can not be converted to normalized form or when class has custom streamer. For instance, for TH1 class two tables are required: TH1_ver4 and TH1_raw4 Most of members are stored in TH1_ver4 table column-wise, and only member: Double_t* fBuffer; //[fBufferSize] can not be represented as column while size of array is not fixed. Therefore, fBuffer will be written as list of values in TH1_raw4 table. All objects, stored in the DB, will be registered in table "ObjectsTable". In this there are following columns:
| Name | Description |
|---|---|
| "key:id" | key identifier to which belong object |
| "obj:id" | object identifier |
| "Class" | object class name |
| "Version" | object class version |
Data in each "ObjectsTable" row uniquely identify, in which table and which column object is stored.
In normal situation all class data should be sorted column-wise. Up to now following member are supported:
All conversion to SQL statements are done with help of TSQLStructure class. This is special hierarchical structure wich internally is very similar to XML structures. TBufferSQL2 creates these structures, when object data is streamed by ROOT and only afterwards all SQL statements will be produced and applied all together. When data is reading, TBufferSQL2 will produce requests to database during unstreaming of object data. Optionally (default this options on) name of column includes suffix which indicates type of column. For instance:
| Name | Description |
|---|---|
| *:parent | parent class, column contain class version |
| *:object | other object, column contain object id |
| *:rawdata | raw data, column contains id of raw data from streamer table |
| *:Int_t | column with integer value |
Use TSQLFile::SetUseSuffixes(kFALSE) to disable suffixes usage. This and several other options can be changed only when TSQLFile created with options "CREATE" or "RECREATE" and only before first write operation. These options are:
| Name | Description |
|---|---|
| SetUseSuffixes() | suffix usage in column names (default - on) |
| SetArrayLimit() | defines maximum array size, which can has column for each element (default 21) |
| SetTablesType() | table type name in MySQL database (default "InnoDB") |
| SetUseIndexes() | usage of indexes in database (default kIndexesBasic) |
Normally these functions should be called immediately after TSQLFile constructor. When objects data written to database, by default START TRANSACTION/COMMIT SQL commands are used before and after data storage. If TSQLFile detects any problems, ROLLBACK command will be used to restore previous state of data base. If transactions not supported by SQL server, they can be disabled by SetUseTransactions(kTransactionsOff). Or user can take responsibility to use transactions function himself. By default only indexes for basic tables are created. In most cases usage of indexes increase performance to data reading, but it also can increase time of writing data to database. There are several modes of index usage available in SetUseIndexes() method There is MakeSelectQuery(TClass*) method, which produces SELECT statement to get objects data of specified class. Difference from simple statement like: mysql> SELECT * FROM TH1I_ver1 that not only data for that class, but also data from parent classes will be extracted from other tables and combined in single result table. Such select query can be useful for external access to objects data.
Up to now MySQL 4.1 and Oracle 9i were tested. Some extra work is required for other SQL databases. Hopefully, this should be straightforward.
Known problems and open questions.
The "SQL I/O" package is currently under development. Any bug reports and suggestions are welcome. Author: S.Linev, GSI Darmstadt, S.Lin.nosp@m.ev@g.nosp@m.si.de
Definition at line 30 of file TSQLFile.h.
Public Types | |
| enum | { kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) } |
| enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
| enum | { kStartBigFile = 2000000000 } |
| enum | EAsyncOpenStatus { kAOSNotAsync = -1 , kAOSFailure = 0 , kAOSInProgress = 1 , kAOSSuccess = 2 } |
| Asynchronous open request status. More... | |
| enum | ECacheAction { kDisconnect = 0 , kDoNotDisconnect = 1 } |
| TTreeCache flushing semantics. More... | |
| enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << (3)) } |
| enum | EFileType { kDefault = 0 , kLocal = 1 , kNet = 2 , kWeb = 3 , kFile = 4 , kMerge = 5 } |
| File type. More... | |
| enum | EIndexesKinds { kIndexesNone = 0 , kIndexesBasic = 1 , kIndexesClass = 2 , kIndexesAll = 3 } |
| enum | EOpenTimeOut { kInstantTimeout = 0 , kEternalTimeout = 999999999 } |
| Open timeout constants. More... | |
| enum | ERelativeTo { kBeg = 0 , kCur = 1 , kEnd = 2 } |
| enum | EStatusBits { k630forwardCompatibility = (1ULL << (2)) , kRecovered = (1ULL << (10)) , kHasReferences = (1ULL << (11)) , kDevNull = (1ULL << (12)) , kWriteError = (1ULL << (14)) , kBinaryFile = (1ULL << (15)) , kRedirected = (1ULL << (16)) , kReproducible = (1ULL << (17)) , kCancelTTreeChangeRequest = (1ULL << (18)) } |
| TFile status bits. BIT(13) is taken up by TObject. More... | |
| enum | ETransactionKinds { kTransactionsOff = 0 , kTransactionsAuto = 1 , kTransactionsUser = 2 } |
Public Member Functions | |
| TSQLFile () | |
| default TSQLFile constructor | |
| TSQLFile (const char *dbname, Option_t *option="read", const char *user="user", const char *pass="pass") | |
| Connects to SQL server with provided arguments. | |
| ~TSQLFile () override | |
| destructor of TSQLFile object | |
| void | AbstractMethod (const char *method) const |
| Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it. | |
| void | Add (TObject *obj, Bool_t replace=kFALSE) override |
| Append object to this directory. | |
| void | Append (TObject *obj, Bool_t replace=kFALSE) override |
| Append object to this directory. | |
| Int_t | AppendKey (TKey *key) override |
| virtual void | AppendPad (Option_t *option="") |
| Append graphics object to current pad. | |
| void | Browse (TBrowser *b) override |
| Browse the content of the directory. | |
| void | Build (TFile *motherFile=nullptr, TDirectory *motherDir=nullptr) override |
| Bool_t | cd () override |
| Change current directory to "this" directory. | |
| Bool_t | cd (const char *path) override |
| Change current directory to "this" directory or to the directory described by the path if given one. | |
| ULong_t | CheckedHash () |
| Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
| virtual const char * | ClassName () const |
| Returns name of class to which the object belongs. | |
| void | Clear (Option_t *option="") override |
| Delete all objects from a Directory list. | |
| TObject * | Clone (const char *newname="") const override |
| Make a clone of an object using the Streamer facility. | |
| TObject * | CloneObject (const TObject *obj, Bool_t autoadd=kTRUE) override |
| Clone an object. | |
| void | Close (Option_t *option="") final |
| Close a SQL file For more comments see TFile::Close() function. | |
| Bool_t | Commit () |
| Commit transaction, started by StartTransaction() call. | |
| Int_t | Compare (const TObject *obj) const override |
| Compare two TNamed objects. | |
| void | Copy (TObject &) const override |
| Copy this to obj. | |
| virtual Bool_t | Cp (const char *dst, Bool_t progressbar=kTRUE, UInt_t bufsize=1000000) |
| Allows to copy this file to the dst URL. | |
| TKey * | CreateKey (TDirectory *mother, const TObject *obj, const char *name, Int_t bufsize) final |
| create SQL key, which will store object in data base | |
| TKey * | CreateKey (TDirectory *mother, const void *obj, const TClass *cl, const char *name, Int_t bufsize) final |
| create SQL key, which will store object in data base | |
| void | Delete (const char *namecycle="") override |
| Delete Objects or/and keys in a directory. | |
| virtual void | DeleteAll (Option_t *option="") |
| Delete all objects from memory. | |
| virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
| Computes distance from point (px,py) to the object. | |
| void | Draw (Option_t *option="") override |
| Fill Graphics Structure and Paint. | |
| virtual void | DrawClass () const |
| Draw class inheritance tree of the class to which this object belongs. | |
| virtual TObject * | DrawClone (Option_t *option="") const |
| Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1). | |
| void | DrawMap (const char *="*", Option_t *="") final |
| Draw map of objects in this file. | |
| virtual void | Dump () const |
| Dump contents of object on stdout. | |
| virtual void | Error (const char *method, const char *msgfmt,...) const |
| Issue error message. | |
| virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
| Execute method on this object with the given parameter string, e.g. | |
| virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
| Execute method on this object with parameters stored in the TObjArray. | |
| virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
| Execute action corresponding to an event at (px,py). | |
| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| Issue fatal error message. | |
| void | FillBuffer (char *&) final |
| Encode file output buffer. | |
| TKey * | FindKey (const char *keyname) const override |
| TKey * | FindKeyAny (const char *keyname) const override |
| TObject * | FindObject (const char *name) const override |
| Find object by name in the list of memory objects. | |
| TObject * | FindObject (const TObject *obj) const override |
| Find object in the list of memory objects. | |
| TObject * | FindObjectAny (const char *name) const override |
| Find object by name in the list of memory objects of the current directory or its sub-directories. | |
| TObject * | FindObjectAnyFile (const char *name) const override |
| void | Flush () final |
| Synchronize a file's in-memory and on-disk states. | |
| template<class T> | |
| T * | Get (const char *namecycle) |
| See documentation of TDirectoryFile::Get(const char *namecycle). | |
| TObject * | Get (const char *namecycle) override |
| Return pointer to object identified by namecycle. | |
| TArchiveFile * | GetArchive () const |
| Long64_t | GetArchiveOffset () const |
| Int_t | GetArrayLimit () const |
| Int_t | GetBestBuffer () const |
| Return the best buffer size of objects on this file. | |
| Int_t | GetBufferSize () const override |
| virtual Long64_t | GetBytesRead () const |
| virtual Long64_t | GetBytesReadExtra () const |
| virtual Int_t | GetBytesToPrefetch () const |
| Max number of bytes to prefetch. | |
| virtual Long64_t | GetBytesWritten () const |
| Return the total number of bytes written so far to the file. | |
| TFileCacheRead * | GetCacheRead (const TObject *tree=nullptr) const |
| Return a pointer to the current read cache. | |
| TFileCacheWrite * | GetCacheWrite () const |
| Return a pointer to the current write cache. | |
| TArrayC * | GetClassIndex () const |
| Int_t | GetCompressionAlgorithm () const |
| Float_t | GetCompressionFactor () |
| Return the file compression factor. | |
| Int_t | GetCompressionLevel () const |
| Int_t | GetCompressionSettings () const |
| const TDatime & | GetCreationDate () const |
| const char * | GetDataBaseName () const |
| Return name of data base on the host For Oracle always return 0. | |
| TDirectory * | GetDirectory (const char *apath, Bool_t printError=false, const char *funcname="GetDirectory") override |
| Find a directory using apath. | |
| virtual Option_t * | GetDrawOption () const |
| Get option used by the graphics system to draw this object. | |
| Long64_t | GetEND () const final |
| virtual const TUrl * | GetEndpointUrl () const |
| Int_t | GetErrno () const final |
| Method returning errno. | |
| Int_t | GetFd () const |
| TFile * | GetFile () const override |
| virtual const char * | GetIconName () const |
| Returns mime type name of object. | |
| Int_t | GetIOVersion () const |
| TKey * | GetKey (const char *name, Short_t cycle=9999) const override |
| virtual TList * | GetList () const |
| TList * | GetListOfFree () const |
| TList * | GetListOfKeys () const override |
| TObjArray * | GetListOfProcessIDs () const |
| const TDatime & | GetModificationDate () const |
| TObject * | GetMother () const |
| TDirectory * | GetMotherDir () const |
| const char * | GetName () const override |
| Returns name of object. | |
| Int_t | GetNbytesFree () const final |
| Int_t | GetNbytesInfo () const final |
| Int_t | GetNbytesKeys () const override |
| virtual TString | GetNewUrl () |
| Int_t | GetNfree () const final |
| Int_t | GetNkeys () const override |
| virtual Int_t | GetNProcessIDs () const |
| template<class T> | |
| void | GetObject (const char *namecycle, T *&ptr) |
| Get an object with proper type checking. | |
| void * | GetObjectChecked (const char *namecycle, const char *classname) override |
| See documentation of TDirectory::GetObjectCheck(const char *namecycle, const TClass *cl). | |
| void * | GetObjectChecked (const char *namecycle, const TClass *cl) override |
| Return pointer to object identified by namecycle if and only if the actual object is a type suitable to be stored as a pointer to a "expectedClass" If expectedClass is null, no check is performed. | |
| virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
| Returns string containing info about the object at position (px,py). | |
| void * | GetObjectUnchecked (const char *namecycle) override |
| Return pointer to object identified by namecycle. | |
| Option_t * | GetOption () const override |
| virtual const char * | GetPath () const |
| Returns the full path of the directory. | |
| virtual const char * | GetPathStatic () const |
| Returns the full path of the directory. | |
| Int_t | GetQuerisCounter () const |
| virtual Int_t | GetReadCalls () const |
| Int_t | GetRecordHeader (char *buf, Long64_t first, Int_t maxbytes, Int_t &nbytes, Int_t &objlen, Int_t &keylen) |
| Read the logical record header starting at a certain postion. | |
| Long64_t | GetRelOffset () const |
| Long64_t | GetSeekDir () const override |
| Long64_t | GetSeekFree () const final |
| Long64_t | GetSeekInfo () const final |
| Long64_t | GetSeekKeys () const override |
| Long64_t | GetSeekParent () const override |
| Long64_t | GetSize () const final |
| Returns the current file size. | |
| const TList * | GetStreamerInfoCache () |
| Returns the cached list of StreamerInfos used in this file. | |
| virtual TList * | GetStreamerInfoList () final |
| Read the list of TStreamerInfo objects written to this file. | |
| const char * | GetTablesType () const |
| const char * | GetTitle () const override |
| Returns title of object. | |
| virtual UInt_t | GetUniqueID () const |
| Return the unique object id. | |
| Int_t | GetUseIndexes () const |
| Bool_t | GetUseSuffixes () const |
| Int_t | GetUseTransactions () const |
| TUUID | GetUUID () const |
| Int_t | GetVersion () const |
| virtual Bool_t | HandleTimer (TTimer *timer) |
| Execute action in response of a timer timing out. | |
| ULong_t | Hash () const override |
| Return hash value for this object. | |
| Bool_t | HasInconsistentHash () const |
| Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
| virtual void | IncrementProcessIDs () |
| virtual void | Info (const char *method, const char *msgfmt,...) const |
| Issue info message. | |
| virtual Bool_t | InheritsFrom (const char *classname) const |
| Returns kTRUE if object inherits from class "classname". | |
| virtual Bool_t | InheritsFrom (const TClass *cl) const |
| Returns kTRUE if object inherits from TClass cl. | |
| virtual void | Inspect () const |
| Dump contents of this object in a graphics canvas. | |
| void | InvertBit (UInt_t f) |
| TClass * | IsA () const override |
| virtual Bool_t | IsArchive () const |
| Bool_t | IsBinary () const |
| Bool_t | IsBuilt () const |
| Bool_t | IsDestructed () const |
| IsDestructed. | |
| virtual Bool_t | IsEqual (const TObject *obj) const |
| Default equal comparison (objects are equal if they have the same address in memory). | |
| Bool_t | IsFolder () const override |
| Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
| Bool_t | IsModified () const override |
| Bool_t | IsMySQL () const |
| checks, if MySQL database | |
| Bool_t | IsODBC () const |
| checks, if ODBC driver used for database connection | |
| Bool_t | IsOnHeap () const |
| Bool_t | IsOpen () const final |
| return kTRUE if file is opened and can be accessed | |
| Bool_t | IsOracle () const |
| checks, if Oracle database | |
| Bool_t | IsRaw () const |
| Bool_t | IsSortable () const override |
| Bool_t | IsWritable () const override |
| Bool_t | IsZombie () const |
| void | ls (Option_t *option="") const override |
| List file contents. | |
| void | MakeFree (Long64_t, Long64_t) final |
| Mark unused bytes on the file. | |
| void | MakeProject (const char *, const char *="*", Option_t *="new") final |
| Generate source code necessary to access the objects stored in the file. | |
| TString | MakeSelectQuery (TClass *cl) |
| Produce SELECT statement which can be used to get all data of class cl in one SELECT statement. | |
| void | Map () final |
| void | Map (Option_t *) final |
| List the contents of a file sequentially. | |
| virtual Bool_t | Matches (const char *name) |
| Return kTRUE if 'url' matches the coordinates of this file. | |
| void | MayNotUse (const char *method) const |
| Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). | |
| TDirectory * | mkdir (const char *name, const char *title="", Bool_t returnExistingDirectory=kFALSE) override |
| Create a sub-directory "a" or a hierarchy of sub-directories "a/b/c/...". | |
| virtual Bool_t | MustFlush () const |
| virtual Bool_t | Notify () |
| This method must be overridden to handle object notification (the base implementation is no-op). | |
| void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
| Use this method to declare a method obsolete. | |
| TFile * | OpenFile (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0) override |
| void | operator delete (void *, size_t) |
| Operator delete for sized deallocation. | |
| void | operator delete (void *ptr) |
| Operator delete. | |
| void | operator delete (void *ptr, void *vp) |
| Only called by placement new when throwing an exception. | |
| void | operator delete[] (void *, size_t) |
| Operator delete [] for sized deallocation. | |
| void | operator delete[] (void *ptr) |
| Operator delete []. | |
| void | operator delete[] (void *ptr, void *vp) |
| Only called by placement new[] when throwing an exception. | |
| void * | operator new (size_t sz) |
| void * | operator new (size_t sz, void *vp) |
| void * | operator new[] (size_t sz) |
| void * | operator new[] (size_t sz, void *vp) |
| void | Paint (Option_t *="") final |
| Paint all objects in the file. | |
| virtual void | Pop () |
| Pop on object drawn in a pad to the top of the display list. | |
| void | Print (Option_t *="") const final |
| Print all objects in the file. | |
| void | Purge (Short_t nkeep=1) override |
| virtual void | pwd () const |
| Print the path of the directory. | |
| virtual Int_t | Read (const char *name) |
| Read contents of object with specified name from the current directory. | |
| void | ReadAll (Option_t *option="") override |
| Bool_t | ReadBuffer (char *, Int_t) final |
| Read a buffer from the file. | |
| Bool_t | ReadBuffer (char *, Long64_t, Int_t) final |
| Read a buffer from the file at the offset 'pos' in the file. | |
| virtual Bool_t | ReadBufferAsync (Long64_t offs, Int_t len) |
| virtual Bool_t | ReadBuffers (char *buf, Long64_t *pos, Int_t *len, Int_t nbuf) |
| Read the nbuf blocks described in arrays pos and len. | |
| void | ReadFree () final |
| Read the FREE linked list. | |
| Int_t | ReadKeys (Bool_t forceRead=kTRUE) override |
| virtual TProcessID * | ReadProcessID (UShort_t pidf) |
| The TProcessID with number pidf is read from this file. | |
| virtual void | ReadStreamerInfo () |
| Read the list of StreamerInfo from this file. | |
| Int_t | ReadTObject (TObject *obj, const char *keyname) override |
| Int_t | Recover () final |
| Attempt to recover file if not correctly closed. | |
| void | RecursiveRemove (TObject *obj) override |
| Recursively remove object from a Directory. | |
| virtual TObject * | Remove (TObject *) |
| Remove an object from the in-memory list. | |
| Int_t | ReOpen (Option_t *mode) final |
| Reopen a file with a different access mode, like from READ to See TFile::Open() for details. | |
| virtual void | ResetAfterMerge (TFileMergeInfo *) |
| void | ResetBit (UInt_t f) |
| void | ResetErrno () const final |
| Method resetting the errno. | |
| void | rmdir (const char *name) override |
| Removes subdirectory from the directory When directory is deleted, all keys in all subdirectories will be read first and deleted from file (if exists) Equivalent call is Delete("name;*");. | |
| Bool_t | Rollback () |
| Rollback all operations, done after StartTransaction() call. | |
| void | Save () override |
| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| Save this object in the file specified by filename. | |
| Int_t | SaveObjectAs (const TObject *obj, const char *filename="", Option_t *option="") const override |
| Save object in filename, if filename is nullptr or "", a file with "<objectname>.root" is created. | |
| virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
| Save a primitive as a C++ statement(s) on output stream "out". | |
| void | SaveSelf (Bool_t force=kFALSE) override |
| void | Seek (Long64_t, ERelativeTo=kBeg) final |
| Seek to a specific position in the file. Pos it either kBeg, kCur or kEnd. | |
| void | SetArrayLimit (Int_t limit=20) |
| Defines maximum number of columns for array representation If array size bigger than limit, array data will be converted to raw format This is usefull to prevent tables with very big number of columns If limit==0, all arrays will be stored in raw format If limit<0, all array values will be stored in column form Default value is 21. | |
| void | SetBit (UInt_t f) |
| void | SetBit (UInt_t f, Bool_t set) |
| Set or unset the user status bits as specified in f. | |
| void | SetBufferSize (Int_t bufsize) override |
| virtual void | SetCacheRead (TFileCacheRead *cache, TObject *tree=nullptr, ECacheAction action=kDisconnect) |
| Set a pointer to the read cache. | |
| virtual void | SetCacheWrite (TFileCacheWrite *cache) |
| Set a pointer to the write cache. | |
| virtual void | SetCompressionAlgorithm (Int_t algorithm=ROOT::RCompressionSetting::EAlgorithm::kUseGlobal) |
| See comments for function SetCompressionSettings. | |
| virtual void | SetCompressionLevel (Int_t level=ROOT::RCompressionSetting::ELevel::kUseMin) |
| See comments for function SetCompressionSettings. | |
| virtual void | SetCompressionSettings (Int_t settings=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault) |
| Used to specify the compression level and algorithm. | |
| virtual void | SetDrawOption (Option_t *option="") |
| Set drawing option for object. | |
| void | SetEND (Long64_t) final |
| void | SetModified () override |
| virtual void | SetMother (TObject *mother) |
| void | SetName (const char *newname) override |
| Set the name for directory If the directory name is changed after the directory was written once, ROOT currently would NOT change the name of correspondent key in the mother directory. | |
| virtual void | SetNameTitle (const char *name, const char *title) |
| Set all the TNamed parameters (name and title). | |
| virtual void | SetOffset (Long64_t offset, ERelativeTo pos=kBeg) |
| Set position from where to start reading. | |
| virtual void | SetOption (Option_t *option=">") |
| virtual void | SetReadCalls (Int_t readcalls=0) |
| void | SetSeekDir (Long64_t v) override |
| void | SetTablesType (const char *table_type) |
| Defines tables type, which is used in CREATE TABLE statements Now is only used for MySQL database, where following types are supported: "BDB", "HEAP", "ISAM", "InnoDB", "MERGE", "MRG_MYISAM", "MYISAM" Default for TSQLFile is "InnoDB". | |
| virtual void | SetTitle (const char *title="") |
| Set the title of the TNamed. | |
| void | SetTRefAction (TObject *ref, TObject *parent) override |
| virtual void | SetUniqueID (UInt_t uid) |
| Set the unique object id. | |
| void | SetUseIndexes (Int_t use_type=kIndexesBasic) |
| Specify usage of indexes for data tables. | |
| void | SetUseSuffixes (Bool_t on=kTRUE) |
| enable/disable uasge of suffixes in columns names can be changed before first object is saved into file | |
| void | SetUseTransactions (Int_t mode=kTransactionsAuto) |
| Defines usage of transactions statements for writing objects data to database. | |
| void | SetWritable (Bool_t writable=kTRUE) override |
| virtual void | ShowStreamerInfo () |
| Show the StreamerInfo of all classes written to this file. | |
| Int_t | Sizeof () const final |
| Return the size in bytes of the file header. | |
| void | SkipArrayLimit () |
| void | StartLogFile (const char *fname) |
| start logging of all SQL statements in specified file | |
| Bool_t | StartTransaction () |
| Start user transaction. | |
| void | StopLogFile () |
| close logging file | |
| void | Streamer (TBuffer &) override |
| Streamer for TSQLFile class. | |
| void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
| void | SumBuffer (Int_t bufsize) |
| Increment statistics for buffer sizes of objects in this file. | |
| virtual void | SysError (const char *method, const char *msgfmt,...) const |
| Issue system error message. | |
| Bool_t | TestBit (UInt_t f) const |
| Int_t | TestBits (UInt_t f) const |
| virtual void | UseCurrentStyle () |
| Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
| ROOT::Detail::TKeyMapIterable | WalkTKeys () |
| Traverses all TKeys in the TFile and returns information about them. | |
| virtual void | Warning (const char *method, const char *msgfmt,...) const |
| Issue warning message. | |
| Int_t | Write (const char *=nullptr, Int_t=0, Int_t=0) const final |
| One can not save a const TDirectory object. | |
| Int_t | Write (const char *=nullptr, Int_t=0, Int_t=0) final |
| Write memory objects to this file. | |
| Bool_t | WriteBuffer (const char *, Int_t) final |
| Write a buffer to the file. | |
| void | WriteDirHeader () override |
| void | WriteFree () final |
| Write FREE linked list on the file. | |
| void | WriteHeader () final |
| Write file info like configurations, title, UUID and other. | |
| void | WriteKeys () override |
| template<typename T> | |
| std::enable_if_t< std::is_base_of< TObject, T >::value, Int_t > | WriteObject (const T *obj, const char *name, Option_t *option="", Int_t bufsize=0) |
| Write an object with proper type checking. | |
| template<typename T> | |
| std::enable_if_t<!std::is_base_of< TObject, T >::value, Int_t > | WriteObject (const T *obj, const char *name, Option_t *option="", Int_t bufsize=0) |
| Write an object with proper type checking. | |
| Int_t | WriteObjectAny (const void *obj, const char *classname, const char *name, Option_t *option="", Int_t bufsize=0) override |
| Int_t | WriteObjectAny (const void *obj, const TClass *cl, const char *name, Option_t *option="", Int_t bufsize=0) override |
| virtual UShort_t | WriteProcessID (TProcessID *pid) |
| Check if the ProcessID pidd is already in the file, if not, add it and return the index number in the local file list. | |
| void | WriteStreamerInfo () final |
| Store all TVirtualStreamerInfo, used in file, in sql database. | |
| Int_t | WriteTObject (const TObject *obj, const char *name=nullptr, Option_t *option="", Int_t bufsize=0) override |
Static Public Member Functions | |
| static void | _R__DEPRECATED_ ("will be removed in ROOT v" "7" "." "00" ": " "This function has no effect on ROOT") AddDirectory(Bool_t add |
| static Bool_t | _R__DEPRECATED_ ("will be removed in ROOT v" "7" "." "00" ": " "This function has no effect on ROOT") AddDirectoryStatus() |
| static TFileOpenHandle * | AsyncOpen (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0) |
| Submit an asynchronous open request. | |
| static Bool_t | Cd (const char *path) |
| static TClass * | Class () |
| static const char * | Class_Name () |
| static constexpr Version_t | Class_Version () |
| static Bool_t | Cp (const char *src, const char *dst, Bool_t progressbar=kTRUE, UInt_t buffersize=1000000) |
| Allows to copy file from src to dst URL. | |
| static std::atomic< TDirectory * > & | CurrentDirectory () |
| Return the current directory for the current thread. | |
| static TFile *& | CurrentFile () |
| Return the current ROOT file if any. | |
| static const char * | DeclFileName () |
| static size_t | DecodeNameCycle (const char *namecycle, char *name, Short_t &cycle, const size_t namesize=0) |
| static EAsyncOpenStatus | GetAsyncOpenStatus (const char *name) |
| Get status of the async open request related to 'name'. | |
| static EAsyncOpenStatus | GetAsyncOpenStatus (TFileOpenHandle *handle) |
| Get status of the async open request related to 'handle'. | |
| static const char * | GetCacheFileDir () |
| Get the directory where to locally stage/cache remote files. | |
| static Longptr_t | GetDtorOnly () |
| Return destructor only flag. | |
| static const TUrl * | GetEndpointUrl (const char *name) |
| Get final URL for file being opened asynchronously. | |
| static Long64_t | GetFileBytesRead () |
| Static function returning the total number of bytes read from all files. | |
| static Long64_t | GetFileBytesWritten () |
| Static function returning the total number of bytes written to all files. | |
| static Long64_t | GetFileCounter () |
| static Int_t | GetFileReadCalls () |
| Static function returning the total number of read calls from all files. | |
| static Bool_t | GetObjectStat () |
| Get status of object stat flag. | |
| static Bool_t | GetOnlyStaged () |
| Returns staged only flag. | |
| static UInt_t | GetOpenTimeout () |
| Returns open timeout (in ms). | |
| static Int_t | GetReadaheadSize () |
| Static function returning the readahead buffer size. | |
| static Bool_t | GetReadStreamerInfo () |
| If the streamerinfos are to be read at file opening. | |
| static EFileType | GetType (const char *name, Option_t *option="", TString *prefix=nullptr) |
| Resolve the file type as a function of the protocol field in 'name'. | |
| static void | IncrementFileCounter () |
| static TFile * | Open (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0) |
| Create / open a file. | |
| static TFile * | Open (TFileOpenHandle *handle) |
| Waits for the completion of an asynchronous open request. | |
| static Bool_t | SetCacheFileDir (std::string_view cacheDir, Bool_t operateDisconnected=kTRUE, Bool_t forceCacheread=kFALSE) |
| Sets the directory where to locally stage/cache remote files. | |
| static void | SetDtorOnly (void *obj) |
| Set destructor only flag. | |
| static void | SetFileBytesRead (Long64_t bytes=0) |
| static void | SetFileBytesWritten (Long64_t bytes=0) |
| static void | SetFileReadCalls (Int_t readcalls=0) |
| static void | SetObjectStat (Bool_t stat) |
| Turn on/off tracking of objects in the TObjectTable. | |
| static Bool_t | SetOnlyStaged (Bool_t onlystaged) |
| Sets only staged flag. | |
| static UInt_t | SetOpenTimeout (UInt_t timeout) |
| Sets open timeout time (in ms). Returns previous timeout value. | |
| static void | SetReadaheadSize (Int_t bufsize=256000) |
| static void | SetReadStreamerInfo (Bool_t readinfo=kTRUE) |
| Specify if the streamerinfos must be read at file opening. | |
| static Bool_t | ShrinkCacheFileDir (Long64_t shrinkSize, Long_t cleanupInteval=0) |
| Try to shrink the cache to the desired size. | |
Protected Types | |
| enum | { kOnlyPrepStep = (1ULL << (3)) } |
| enum | ELockingKinds { kLockFree = 0 , kLockBusy = 1 } |
| using | SharedGDirectory_t = std::shared_ptr<std::atomic<TDirectory *>> |
Protected Member Functions | |
| void | AddIdEntry (Long64_t tableid, Int_t subid, Int_t type, const char *name, const char *sqlname, const char *info) |
| Add entry into IdsTable, where all tables names and columns names are listed. | |
| void | BuildDirectory (TFile *motherFile, TDirectory *motherDir) |
| Initialise directory to defaults. | |
| void | BuildDirectoryFile (TFile *motherFile, TDirectory *motherDir) |
| Bool_t | cd1 (const char *path) |
| Change current directory to "this" directory or to the directory described by the path if given one. | |
| void | CleanTargets () |
| TString | CodeLongString (Long64_t objid, Int_t strid) |
| Produces id which will be placed in column instead of string itself. | |
| void | CreateBasicTables () |
| Creates initial tables in database This is table with configurations and table with keys Function called once when first object is stored to the file. | |
| Bool_t | CreateClassTable (TSQLClassInfo *sqlinfo, TObjArray *colinfos) |
| Create normal class table if required. | |
| Bool_t | CreateRawTable (TSQLClassInfo *sqlinfo) |
| Create the raw table. | |
| Long64_t | DefineNextKeyId () |
| Returns next possible key identifier. | |
| TString | DefineTableName (const char *clname, Int_t version, Bool_t rawtable) |
| Proposes table name for class. | |
| void | DeleteKeyFromDB (Long64_t keyid) |
| Remove key with specified id from keys table also removes all objects data, related to this table. | |
| Long64_t | DirCreateEntry (TDirectory *) final |
| Create entry for directory in database. | |
| Int_t | DirReadKeys (TDirectory *) final |
| Read directory list of keys from database. | |
| void | DirWriteHeader (TDirectory *) final |
| Update dir header in the file. | |
| void | DirWriteKeys (TDirectory *) final |
| Write directory keys list to database. | |
| virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
| Interface to ErrorHandler (protected). | |
| void | FillFullPath (TString &buf) const |
| Recursive method to fill full path for directory. | |
| TSQLClassInfo * | FindSQLClassInfo (const char *clname, Int_t version) |
| Return (if exists) TSQLClassInfo for specified class name and version. | |
| TSQLClassInfo * | FindSQLClassInfo (const TClass *cl) |
| return (if exists) TSQLClassInfo for specified class | |
| TKeySQL * | FindSQLKey (TDirectory *dir, Long64_t keyid) |
| Search for TKeySQL object with specified keyid. | |
| Bool_t | FlushWriteCache () |
| Flush the write cache if active. | |
| virtual EAsyncOpenStatus | GetAsyncOpenStatus () |
| TSQLResult * | GetBlobClassData (Long64_t objid, TSQLClassInfo *sqlinfo) |
| Method return request results for specified objid from streamer classtable. | |
| TSQLStatement * | GetBlobClassDataStmt (Long64_t objid, TSQLClassInfo *sqlinfo) |
| Method return request results for specified objid from streamer classtable Data returned in form of statement, where direct access to values are possible. | |
| Int_t | GetLocking () |
| Return current locking mode for that file. | |
| Bool_t | GetLongString (Long64_t objid, Int_t strid, TString &value) |
| Returns value of string, extracted from special table, where long strings are stored. | |
| TSQLResult * | GetNormalClassData (Long64_t objid, TSQLClassInfo *sqlinfo) |
| Method return request result for specified objid from normal classtable. | |
| TSQLResult * | GetNormalClassDataAll (Long64_t minobjid, Long64_t maxobjid, TSQLClassInfo *sqlinfo) |
| Return data for several objects from the range from normal class table. | |
| InfoListRet | GetStreamerInfoListImpl (bool) final |
| Read back streamer infos from database List of streamer infos is always stored with key:id 0, which is not shown in normal keys list. | |
| Bool_t | HasTable (const char *name) |
| Test if table name exists. | |
| void | IncrementModifyCounter () |
| Update value of modify counter in config table Modify counter used to indicate that something was changed in database. | |
| virtual void | Init (Bool_t create) |
| Initialize a TFile object. | |
| void | InitDirectoryFile (TClass *cl=nullptr) |
| void | InitSqlDatabase (Bool_t create) |
| initialize sql database and correspondent structures identical to TFile::Init() function | |
| Int_t | IsLongStringCode (Long64_t objid, const char *value) |
| Checks if this is long string code returns 0, if not or string id. | |
| Bool_t | IsReadAccess () |
| dummy, in future should check about read access to database | |
| Bool_t | IsTablesExists () |
| Checks if main keys table is existing. | |
| Bool_t | IsWriteAccess () |
| Checkis, if lock is free in configuration tables. | |
| void | MakeZombie () |
| Bool_t | ProduceClassSelectQuery (TVirtualStreamerInfo *info, TSQLClassInfo *sqlinfo, TString &columns, TString &tables, Int_t &tablecnt) |
| used by MakeClassSelectQuery method to add columns from table of class, specified by TVirtualStreamerInfo structure | |
| Int_t | ReadBufferViaCache (char *buf, Int_t len) |
| Read buffer via cache. | |
| Bool_t | ReadConfigurations () |
| read table configurations as special table | |
| TObject * | ReadSpecialObject (Long64_t keyid, TObject *obj=nullptr) |
| Read data of special kind of objects. | |
| void | ReadSQLClassInfos () |
| Read all class infos from IdsTable. | |
| void | RegisterContext (TContext *ctxt) |
| void | RegisterGDirectory (SharedGDirectory_t &ptr) |
| TSQLClassInfo * | RequestSQLClassInfo (const char *clname, Int_t version) |
| Search in database tables for specified class and return TSQLClassInfo object. | |
| TSQLClassInfo * | RequestSQLClassInfo (const TClass *cl) |
| Search in database tables for specified class and return TSQLClassInfo object. | |
| void | SavePrimitiveNameTitle (std::ostream &out, const char *variable_name) |
| Save object name and title into the output stream "out". | |
| void | SaveToDatabase () |
| save data which is not yet in Database Typically this is streamerinfos structures or | |
| void | SetLocking (Int_t mode) |
| Set locking mode for current database. | |
| Bool_t | SQLApplyCommands (TObjArray *cmds) |
| supplies set of commands to server Commands is stored as array of TObjString | |
| const char * | SQLBigTextType () const |
| Bool_t | SQLCanStatement () |
| Test if DB support statement and number of open statements is not exceeded. | |
| Bool_t | SQLCommit () |
| Commit SQL transaction. | |
| const char * | SQLCompatibleType (Int_t typ) const |
| Returns sql type name which is most closer to ROOT basic type. | |
| const char * | SQLDatetimeType () const |
| const char * | SQLDefaultTableType () const |
| void | SQLDeleteAllTables () |
| Delete all tables in database. | |
| void | SQLDeleteStatement (TSQLStatement *stmt) |
| delete statement and decrease counter | |
| const char * | SQLDirIdColumn () const |
| const char * | SQLIdentifierQuote () const |
| const char * | SQLIntType () const |
| return SQL integer type | |
| const char * | SQLKeyIdColumn () const |
| Int_t | SQLMaxIdentifierLength () |
| returns maximum allowed length of identifiers | |
| Long64_t | SQLMaximumValue (const char *tablename, const char *columnname) |
| Returns maximum value, found in specified columnname of table tablename Column type should be numeric. | |
| const char * | SQLNameSeparator () const |
| const char * | SQLObjectIdColumn () const |
| Bool_t | SQLObjectInfo (Long64_t objid, TString &clname, Version_t &version) |
| Read from objects table data for specified objectid. | |
| TObjArray * | SQLObjectsInfo (Long64_t keyid) |
| Produce array of TSQLObjectInfo objects for all objects, belong to that key Array should be deleted by calling function afterwards. | |
| TSQLResult * | SQLQuery (const char *cmd, Int_t flag=0, Bool_t *res=nullptr) |
| Submits query to SQL server. | |
| const char * | SQLRawIdColumn () const |
| Bool_t | SQLRollback () |
| Rollback all SQL operations, done after start transaction. | |
| const char * | SQLSmallTextType () const |
| Int_t | SQLSmallTextTypeLimit () const |
| Bool_t | SQLStartTransaction () |
| Start SQL transaction. | |
| TSQLStatement * | SQLStatement (const char *cmd, Int_t bufsize=1000) |
| Produces SQL statement for currently conected DB server. | |
| const char * | SQLStrIdColumn () const |
| Bool_t | SQLTestTable (const char *tablename) |
| Test, if table of specified name exists. | |
| const char * | SQLValueQuote () const |
| Long64_t | StoreObjectInTables (Long64_t keyid, const void *obj, const TClass *cl) |
| Store object in database. Return stored object id or -1 if error. | |
| Int_t | StreamKeysForDirectory (TDirectory *dir, Bool_t doupdate, Long64_t specialkeyid=-1, TKeySQL **specialkey=nullptr) |
| read keys for specified directory (when update == kFALSE) or update value for modified keys when update == kTRUE Returns number of successfully read keys or -1 if error | |
| Int_t | SysClose (Int_t) final |
| Interface to system close. All arguments like in POSIX close(). | |
| Int_t | SysOpen (const char *, Int_t, UInt_t) final |
| Interface to system open. All arguments like in POSIX open(). | |
| Int_t | SysRead (Int_t, void *, Int_t) final |
| Interface to system read. All arguments like in POSIX read(). | |
| Long64_t | SysSeek (Int_t, Long64_t, Int_t) final |
| Interface to system lseek. | |
| Int_t | SysStat (Int_t, Long_t *, Long64_t *, Long_t *, Long_t *) final |
| Return file stat information. | |
| Int_t | SysSync (Int_t) final |
| Interface to system fsync. All arguments like in POSIX fsync(). | |
| Int_t | SysWrite (Int_t, const void *, Int_t) final |
| Interface to system write. All arguments like in POSIX write(). | |
| void | UnregisterContext (TContext *ctxt) |
| UnRegister a TContext pointing to this TDirectory object. | |
| Bool_t | UpdateKeyData (TKeySQL *key) |
| Updates (overwrites) key data in KeysTable. | |
| Bool_t | VerifyLongStringTable () |
| Checks that table for big strings is exists If not, will be created. | |
| Long64_t | VerifyObjectTable () |
| Checks that objects table is exists If not, table will be created Returns maximum value for existing objects id. | |
| Int_t | WriteBufferViaCache (const char *buf, Int_t len) |
| Write buffer via cache. | |
| Bool_t | WriteKeyData (TKeySQL *key) |
| Add entry into keys table. | |
| Bool_t | WriteSpecialObject (Long64_t keyid, TObject *obj, const char *name, const char *title) |
| write special kind of object like streamer infos or file itself keys for that objects should exist in tables but not indicated in list of keys, therefore users can not get them with TDirectoryFile::Get() method | |
Static Protected Member Functions | |
| static Bool_t | Cd1 (const char *path) |
| Change current directory to "path". | |
| static SharedGDirectory_t & | GetSharedLocalCurrentDirectory () |
| Return the (address of) a shared pointer to the struct holding the actual thread local gDirectory pointer and the atomic_flag for its lock. | |
| static void | SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE) |
| Save object constructor in the output stream "out". | |
| static void | SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr) |
| Save invocation of primitive Draw() method Skipped if option contains "nodraw" string. | |
| static TString | SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Int_t flag=0) |
| Save array in the output stream "out" as vector. | |
Protected Attributes | |
| TArchiveFile * | fArchive {nullptr} |
| !Archive file from which we read this file | |
| Long64_t | fArchiveOffset {0} |
| !Offset at which file starts in archive | |
| Int_t | fArrayLimit |
| ! limit for array size. when array bigger, its content converted to raw format | |
| TFileOpenHandle * | fAsyncHandle {nullptr} |
| !For proper automatic cleanup | |
| EAsyncOpenStatus | fAsyncOpenStatus {kAOSNotAsync} |
| !Status of an asynchronous open request | |
| const char ** | fBasicTypes |
| ! pointer on list of basic types specific for currently connected SQL server | |
| Long64_t | fBEGIN {0} |
| First used byte in file. | |
| Int_t | fBufferSize {0} |
| Default buffer size to create new TKeys. | |
| Long64_t | fBytesRead {0} |
| Number of bytes read from this file. | |
| Long64_t | fBytesReadExtra {0} |
| Number of extra bytes (overhead) read by the readahead buffer. | |
| Long64_t | fBytesWrite {0} |
| Number of bytes written to this file. | |
| TFileCacheRead * | fCacheRead {nullptr} |
| !Pointer to the read cache (if any) | |
| TMap * | fCacheReadMap {nullptr} |
| !Pointer to the read cache (if any) | |
| TFileCacheWrite * | fCacheWrite {nullptr} |
| !Pointer to the write cache (if any) | |
| Bool_t | fCanChangeConfig |
| ! variable indicates can be basic configuration changed or not | |
| TArrayC * | fClassIndex {nullptr} |
| !Index of TStreamerInfo classes written to this file | |
| Int_t | fCompress {0} |
| Compression level and algorithm. | |
| TContext * | fContext {nullptr} |
| ! Pointer to a list of TContext object pointing to this TDirectory | |
| std::atomic< size_t > | fContextPeg {0} |
| ! Counter delaying the TDirectory destructor from finishing. | |
| Int_t | fD {-1} |
| File descriptor. | |
| TDatime | fDatimeC |
| Date and time when directory is created. | |
| TDatime | fDatimeM |
| Date and time of last modification. | |
| Long64_t | fEND {0} |
| Last used byte in file. | |
| TFile * | fFile {nullptr} |
| Pointer to current file in memory. | |
| TList * | fFree {nullptr} |
| Free segments linked list table. | |
| std::vector< SharedGDirectory_t > | fGDirectories |
| ! thread local gDirectory pointing to this object. | |
| bool | fGlobalRegistration = true |
| ! if true, bypass use of global lists | |
| Bool_t | fIdsTableExists |
| ! indicate if IdsTable exists | |
| TList * | fInfoCache {nullptr} |
| !Cached list of the streamer infos in this file | |
| Bool_t | fInitDone {kFALSE} |
| !True if the file has been initialized | |
| Bool_t | fIsArchive {kFALSE} |
| !True if this is a pure archive file | |
| Bool_t | fIsPcmFile {kFALSE} |
| !True if the file is a ROOT pcm file. | |
| Bool_t | fIsRootFile {kTRUE} |
| !True is this is a ROOT file, raw file otherwise | |
| TList * | fKeys {nullptr} |
| Pointer to keys list in memory. | |
| TList * | fList {nullptr} |
| List of objects in memory. | |
| std::ofstream * | fLogFile |
| ! log file with SQL statements | |
| Bool_t | fModified {kFALSE} |
| True if directory has been modified. | |
| Int_t | fModifyCounter |
| ! indicates how many changes was done with database tables | |
| TObject * | fMother {nullptr} |
| pointer to mother of the directory | |
| Bool_t | fMustFlush {kTRUE} |
| !True if the file buffers must be flushed | |
| TString | fName |
| Int_t | fNbytesFree {0} |
| Number of bytes for free segments structure. | |
| Int_t | fNbytesInfo {0} |
| Number of bytes for StreamerInfo record. | |
| Int_t | fNbytesKeys {0} |
| Number of bytes for the keys. | |
| Int_t | fNbytesName {0} |
| Number of bytes in TNamed at creation time. | |
| Bool_t | fNoAnchorInName {kFALSE} |
| !True if we don't want to force the anchor to be appended to the file name | |
| Int_t | fNProcessIDs {0} |
| Number of TProcessID written to this file. | |
| Long64_t | fOffset {0} |
| !Seek offset cache | |
| TList * | fOpenPhases {nullptr} |
| !Time info about open phases | |
| TString | fOption |
| File options. | |
| const char ** | fOtherTypes |
| ! pointer on list of other SQL types like TEXT or blob | |
| TString | fPathBuffer |
| ! Buffer for GetPath() function | |
| TObjArray * | fProcessIDs {nullptr} |
| !Array of pointers to TProcessIDs | |
| Int_t | fQuerisCounter |
| ! how many query was applied | |
| Int_t | fReadCalls {0} |
| Number of read calls ( not counting the cache calls ). | |
| TString | fRealName |
| Effective real file name (not original url). | |
| Long64_t | fSeekDir {0} |
| Location of directory on file. | |
| Long64_t | fSeekFree {0} |
| Location on disk of free segments structure. | |
| Long64_t | fSeekInfo {0} |
| Location on disk of StreamerInfo record. | |
| Long64_t | fSeekKeys {0} |
| Location of Keys record on file. | |
| Long64_t | fSeekParent {0} |
| Location of parent directory on file. | |
| std::atomic_flag | fSpinLock |
| ! MSVC doesn't support = ATOMIC_FLAG_INIT; | |
| TSQLServer * | fSQL |
| ! interface to SQL database | |
| TList * | fSQLClassInfos |
| ! list of SQL class infos | |
| Int_t | fSQLIOversion |
| ! version of SQL I/O which is stored in configurations | |
| Int_t | fStmtCounter |
| ! count numbers of active statements | |
| Double_t | fSum2Buffer {0} |
| Sum of squares of buffer sizes of objects written so far. | |
| Double_t | fSumBuffer {0} |
| Sum of buffer sizes of objects written so far. | |
| TString | fTablesType |
| ! type, used in CREATE TABLE statements | |
| TString | fTitle |
| Char_t | fUnits {0} |
| Number of bytes for file pointers. | |
| TUrl | fUrl |
| !URL of file | |
| Int_t | fUseIndexes |
| ! use indexes for tables: 0 - off, 1 - only for basic tables, 2 + normal class tables, 3 - all tables | |
| TString | fUserName |
| ! user name, used to access objects from database | |
| Bool_t | fUseSuffixes |
| ! use suffixes in column names like fValue:Int_t or fObject:pointer | |
| Int_t | fUseTransactions |
| ! use transaction statements for writing data into the tables | |
| TUUID | fUUID {TUUID::UUIDv4()} |
| Unique identifier. | |
| Int_t | fVersion {0} |
| File format version. | |
| Bool_t | fWritable {kFALSE} |
| True if directory is writable. | |
| std::mutex | fWriteMutex |
| !Lock for writing baskets / keys into the file. | |
| Int_t | fWritten {0} |
| Number of objects written so far. | |
Static Protected Attributes | |
| static Bool_t | fgAddDirectory = false |
| ! | |
| static TList * | fgAsyncOpenRequests = nullptr |
| static std::atomic< Long64_t > | fgBytesRead {0} |
| Number of bytes read by all TFile objects. | |
| static std::atomic< Long64_t > | fgBytesWrite {0} |
| Number of bytes written by all TFile objects. | |
| static TString | fgCacheFileDir |
| Directory where to locally stage files. | |
| static Bool_t | fgCacheFileDisconnected = kTRUE |
| Indicates, we trust in the files in the cache dir without stat on the cached file. | |
| static Bool_t | fgCacheFileForce = kFALSE |
| Indicates, to force all READ to CACHEREAD. | |
| static std::atomic< Long64_t > | fgFileCounter {0} |
| Counter for all opened files. | |
| static Bool_t | fgOnlyStaged = kFALSE |
| Before the file is opened, it is checked, that the file is staged, if not, the open fails. | |
| static UInt_t | fgOpenTimeout = TFile::kEternalTimeout |
| Timeout for open operations in ms - 0 corresponds to blocking i/o. | |
| static Int_t | fgReadaheadSize = 256000 |
| Readahead buffer size. | |
| static std::atomic< Int_t > | fgReadCalls {0} |
| Number of bytes read from all TFile objects. | |
| static Bool_t | fgReadInfo = kTRUE |
| if true (default) ReadStreamerInfo is called when opening a file | |
| static ROOT::Internal::RConcurrentHashColl | fgTsSIHashes |
| !TS Set of hashes built from read streamer infos | |
Private Member Functions | |
| TSQLFile (const TSQLFile &)=delete | |
| void | operator= (const TSQLFile &)=delete |
Static Private Member Functions | |
| static void | AddToTObjectTable (TObject *) |
| Private helper function which will dispatch to TObjectTable::AddObj. | |
| static void | CpProgress (Long64_t bytesread, Long64_t size, TStopwatch &watch) |
| Print file copy progress. | |
| static TFile * | OpenFromCache (const char *name, Option_t *="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0) |
| Open a file for reading through the file cache. | |
Private Attributes | |
| UInt_t | fBits |
| bit field status word | |
| UInt_t | fUniqueID |
| object unique identifier | |
Static Private Attributes | |
| static Longptr_t | fgDtorOnly = 0 |
| object for which to call dtor only (i.e. no delete) | |
| static Bool_t | fgObjectStat = kTRUE |
| if true keep track of objects in TObjectTable | |
Friends | |
| class | TBufferSQL2 |
| class | TKeySQL |
| class | TSqlCmdsBuffer |
| class | TSqlRawBuffer |
| class | TSqlRegistry |
| class | TSQLStructure |
| class | TSQLTableData |
#include <TSQLFile.h>
|
protectedinherited |
Definition at line 147 of file TDirectory.h.
|
protectedinherited |
|
inherited |
|
inherited |
|
inherited |
|
inherited |
|
inherited |
|
inherited |
| Enumerator | |
|---|---|
| kIndexesNone | |
| kIndexesBasic | |
| kIndexesClass | |
| kIndexesAll | |
Definition at line 177 of file TSQLFile.h.
|
protected |
| Enumerator | |
|---|---|
| kLockFree | |
| kLockBusy | |
Definition at line 41 of file TSQLFile.h.
|
inherited |
|
inherited |
|
inherited |
| Enumerator | |
|---|---|
| kTransactionsOff | |
| kTransactionsAuto | |
| kTransactionsUser | |
Definition at line 175 of file TSQLFile.h.
|
privatedelete |
| TSQLFile::TSQLFile | ( | ) |
default TSQLFile constructor
Definition at line 270 of file TSQLFile.cxx.
| TSQLFile::TSQLFile | ( | const char * | dbname, |
| Option_t * | option = "read", | ||
| const char * | user = "user", | ||
| const char * | pass = "pass" ) |
Connects to SQL server with provided arguments.
If the constructor fails in any way IsZombie() will return true. Use IsOpen() to check if the file is (still) open.
| Option | Description |
|---|---|
| NEW or CREATE | Create a ROOT tables in database if the tables already exists connection is not opened. |
| RECREATE | Create completely new tables. Any existing table will be deleted. |
| UPDATE | Open an existing database for writing. If data base open by other TSQLFile instance for writing, |
write access will be rejected.| | BREAKLOCK | Special case when lock was not correctly released by TSQLFile instance. This may happen if program crashed when TSQLFile was open with write access mode.| | READ / OPEN | Open an existing data base for reading.|
For more details see comments for TFile::TFile() constructor. For a moment TSQLFile does not support TTree objects and subdirectories.
Definition at line 296 of file TSQLFile.cxx.
|
override |
destructor of TSQLFile object
Definition at line 688 of file TSQLFile.cxx.
|
staticinherited |
|
staticinherited |
|
inherited |
Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.
Definition at line 1149 of file TObject.cxx.
Append object to this directory.
Reimplemented from TDirectory.
Reimplemented in RooWorkspace::WSDir.
Definition at line 65 of file TDirectoryFile.h.
|
protected |
Add entry into IdsTable, where all tables names and columns names are listed.
Definition at line 2017 of file TSQLFile.cxx.
|
staticprivateinherited |
Private helper function which will dispatch to TObjectTable::AddObj.
Included here to avoid circular dependency between header files.
Definition at line 195 of file TObject.cxx.
Append object to this directory.
If replace is true: remove any existing objects with the same name (if the name is not "")
Reimplemented from TDirectory.
Reimplemented in RooWorkspace::WSDir.
Reimplemented from TDirectory.
|
virtualinherited |
Append graphics object to current pad.
In case no current pad is set yet, create a default canvas with the name "c1".
Definition at line 204 of file TObject.cxx.
|
staticinherited |
Submit an asynchronous open request.
See TFile::Open(const char *, ...) for an explanation of the arguments. A handler is returned which is to be passed to TFile::Open(TFileOpenHandle *) to get the real TFile instance once the file is open. This call never blocks and it is provided to allow parallel submission of file opening operations expected to take a long time. TFile::Open(TFileOpenHandle *) may block if the file is not yet ready. The sequence
TFile::Open(TFile::AsyncOpen(const char *, ...))
is equivalent to
TFile::Open(const char *, ...)
To be effective, the underlying TFile implementation must be able to support asynchronous open functionality. Currently, only TNetXNGFile supports it. If the functionality is not implemented, this call acts transparently by returning an handle with the arguments for the standard synchronous open run by TFile::Open(TFileOpenHandle *). The retuned handle will be adopted by TFile after opening completion in TFile::Open(TFileOpenHandle *); if opening is not finalized the handle must be deleted by the caller.
|
overridevirtualinherited |
Browse the content of the directory.
Reimplemented from TDirectory.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 68 of file TDirectoryFile.h.
|
protectedinherited |
Initialise directory to defaults.
If directory is created via default ctor (when dir is read from file) don't add it here to the directory since its name is not yet known. It will be added to the directory in TKey::ReadObj().
Definition at line 255 of file TDirectory.cxx.
|
protectedinherited |
|
staticinherited |
|
overridevirtualinherited |
Change current directory to "this" directory.
Returns kTRUE (it's guaranteed to succeed).
Reimplemented from TDirectory.
|
overridevirtualinherited |
Change current directory to "this" directory or to the directory described by the path if given one.
Using path one can change the current directory to "path". The absolute path syntax is: file.root:/dir1/dir2 where file.root is the file and /dir1/dir2 the desired subdirectory in the file.
Relative syntax is relative to "this" directory. E.g: ../aa.
Returns kTRUE in case of success.
Reimplemented from TDirectory.
|
staticprotectedinherited |
Change current directory to "path".
The absolute path syntax is: file.root:/dir1/dir2 where file.root is the file and /dir1/dir2 the desired subdirectory in the file. Relative syntax is relative to the current directory gDirectory, e.g.: ../aa`.
Returns kTRUE in case of success. */
Bool_t TDirectory::Cd(const char *path) { return Cd1(path); }
/** Change current directory to "path". The path syntax is: file.root:/dir1/dir2 where file.root is the file and /dir1/dir2 the desired subdirectory in the file. Relative syntax is relative to the current directory gDirectory, e.g.: ../aa.
Returns kFALSE in case path does not exist.
Definition at line 623 of file TDirectory.cxx.
|
protectedinherited |
Change current directory to "this" directory or to the directory described by the path if given one.
Using path one can change the current directory to "path". The absolute path syntax is: file.root:/dir1/dir2 where file.root is the file and /dir1/dir2 the desired subdirectory in the file.
Relative syntax is relative to "this" directory. E.g: ../aa.
Returns kFALSE in case path does not exist.
Definition at line 587 of file TDirectory.cxx.
|
inlineinherited |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();
(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.
|
static |
|
static |
|
inlinestaticconstexpr |
Definition at line 254 of file TSQLFile.h.
|
virtualinherited |
Returns name of class to which the object belongs.
Definition at line 227 of file TObject.cxx.
|
protectedinherited |
|
overridevirtualinherited |
Delete all objects from a Directory list.
Reimplemented from TObject.
Definition at line 640 of file TDirectory.cxx.
|
overridevirtualinherited |
Make a clone of an object using the Streamer facility.
If newname is specified, this will be the name of the new object.
Reimplemented from TObject.
Reimplemented in TStreamerInfo, and TTreeIndex.
Definition at line 73 of file TNamed.cxx.
|
overridevirtualinherited |
Clone an object.
This function is called when the directory is not a TDirectoryFile. This version has to load the I/O package, hence via Cling.
If autoadd is true and if the object class has a DirectoryAutoAdd function, it will be called at the end of the function with the parameter gDirectory. This usually means that the object will be appended to the current ROOT directory.
Reimplemented from TDirectory.
|
finalvirtual |
Close a SQL file For more comments see TFile::Close() function.
Reimplemented from TFile.
Definition at line 640 of file TSQLFile.cxx.
Produces id which will be placed in column instead of string itself.
Definition at line 2213 of file TSQLFile.cxx.
| Bool_t TSQLFile::Commit | ( | ) |
Commit transaction, started by StartTransaction() call.
Only after that call data will be written and visible on database side.
Definition at line 578 of file TSQLFile.cxx.
Compare two TNamed objects.
Returns 0 when equal, -1 when this is smaller and +1 when bigger (like strcmp).
Reimplemented from TObject.
Reimplemented in TStructNodeProperty.
Definition at line 84 of file TNamed.cxx.
|
inlineoverridevirtualinherited |
|
staticprivateinherited |
|
protected |
Creates initial tables in database This is table with configurations and table with keys Function called once when first object is stored to the file.
Definition at line 1115 of file TSQLFile.cxx.
|
protected |
Create normal class table if required.
Definition at line 2058 of file TSQLFile.cxx.
|
finalvirtual |
create SQL key, which will store object in data base
Reimplemented from TFile.
Definition at line 765 of file TSQLFile.cxx.
|
finalvirtual |
create SQL key, which will store object in data base
Reimplemented from TFile.
Definition at line 773 of file TSQLFile.cxx.
|
protected |
Create the raw table.
Definition at line 2140 of file TSQLFile.cxx.
|
staticinherited |
Return the current directory for the current thread.
Definition at line 438 of file TDirectory.cxx.
|
staticinherited |
|
inlinestatic |
Definition at line 254 of file TSQLFile.h.
|
staticinherited |
|
protected |
Returns next possible key identifier.
Definition at line 1756 of file TSQLFile.cxx.
Proposes table name for class.
Definition at line 1833 of file TSQLFile.cxx.
|
overridevirtualinherited |
Delete Objects or/and keys in a directory.
To delete one directory, you must specify the directory cycle, eg. file.Delete("dir1;1");
examples:
Reimplemented from TDirectoryFile.
|
virtualinherited |
Delete all objects from memory.
Definition at line 691 of file TDirectory.cxx.
|
protected |
Remove key with specified id from keys table also removes all objects data, related to this table.
Definition at line 1611 of file TSQLFile.cxx.
|
finalprotectedvirtual |
Create entry for directory in database.
Reimplemented from TFile.
Definition at line 2581 of file TSQLFile.cxx.
|
finalprotectedvirtual |
Read directory list of keys from database.
Reimplemented from TFile.
Definition at line 2596 of file TSQLFile.cxx.
|
finalprotectedvirtual |
Update dir header in the file.
Reimplemented from TFile.
Definition at line 2618 of file TSQLFile.cxx.
|
finalprotectedvirtual |
Write directory keys list to database.
Reimplemented from TFile.
Definition at line 2610 of file TSQLFile.cxx.
Computes distance from point (px,py) to the object.
This member function must be implemented for each graphics primitive. This default function returns a big number (999999).
Reimplemented in TASImage, TAxis3D, TAxis, TBox, TBRIK, TColorWheel, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFileDrawMap, TGenerator, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoNode, TGeoOverlap, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrack, TGeoTube, TGeoTubeSeg, TGeoVGShape, TGeoVolume, TGeoXtru, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TH1, THistPainter, THStack, TLine, TMarker3DBox, TMarker, TMultiGraph, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPCON, TPie, TPieSlice, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSPHE, TSpider, TSpline, TStyle, TText, TTreePerfStats, TTUBE, TTUBS, TVirtualHistPainter, and TXTRU.
Definition at line 284 of file TObject.cxx.
|
protectedvirtualinherited |
Interface to ErrorHandler (protected).
Reimplemented in TThread, and TTreeViewer.
Definition at line 1059 of file TObject.cxx.
|
overridevirtualinherited |
Fill Graphics Structure and Paint.
Loop on all objects (memory or file) and all subdirectories.
Reimplemented from TDirectory.
|
virtualinherited |
Draw class inheritance tree of the class to which this object belongs.
If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:
Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.
Definition at line 308 of file TObject.cxx.
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
If pad was not selected - gPad will be used.
Reimplemented in TAxis, TCanvas, TGFrame, TSystemDirectory, and TSystemFile.
Definition at line 319 of file TObject.cxx.
|
inlinefinalvirtual |
Draw map of objects in this file.
The map drawing is handled by TFileDrawMap. Once the map is drawn, turn on the TCanvas option "View->Event Statusbar". Then, when moving the mouse in the canvas, the "Event Status" panels shows the object corresponding to the mouse position.
Example:
Reimplemented from TFile.
Definition at line 210 of file TSQLFile.h.
|
virtualinherited |
Dump contents of object on stdout.
Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed
The following output is the Dump of a TArrow object:
Reimplemented in TClass, TCollection, TGFrame, TGPack, and TSystemFile.
Definition at line 367 of file TObject.cxx.
|
virtualinherited |
Issue error message.
Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.
Reimplemented in TFitResult.
Definition at line 1098 of file TObject.cxx.
|
virtualinherited |
Execute method on this object with the given parameter string, e.g.
"3.14,1,\"text\"".
Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.
Definition at line 378 of file TObject.cxx.
|
virtualinherited |
Execute method on this object with parameters stored in the TObjArray.
The TObjArray should contain an argv vector like:
Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.
Definition at line 398 of file TObject.cxx.
Execute action corresponding to an event at (px,py).
This method must be overridden if an object can react to graphics events.
Reimplemented in TASImage, TASPaletteEditor::LimitLine, TAxis3D, TAxis, TBox, TButton, TCanvas, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFrame, TGenerator, TGeoManager, TGeoNode, TGeoOverlap, TGeoShape, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLEventHandler, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGroupButton, TH1, THistPainter, TLine, TLink, TMarker3DBox, TMarker, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSliderBox, TSpider, TSpline, TText, TTreePerfStats, TView3D, TView, TVirtualHistPainter, and TWbox.
Definition at line 415 of file TObject.cxx.
|
virtualinherited |
Issue fatal error message.
Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.
Definition at line 1126 of file TObject.cxx.
|
inlinefinalvirtual |
Encode file output buffer.
The file output buffer contains only the FREE data record.
Reimplemented from TFile.
Definition at line 211 of file TSQLFile.h.
|
protectedinherited |
Recursive method to fill full path for directory.
Definition at line 1067 of file TDirectory.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
overridevirtualinherited |
Find object by name in the list of memory objects.
Reimplemented from TObject.
Reimplemented in TROOT.
Definition at line 790 of file TDirectory.cxx.
Find object in the list of memory objects.
Reimplemented from TObject.
Reimplemented in TROOT.
Definition at line 782 of file TDirectory.cxx.
|
overridevirtualinherited |
Find object by name in the list of memory objects of the current directory or its sub-directories.
After this call the current directory is not changed. To automatically set the current directory where the object is found, use FindKeyAny(aname)->ReadObj().
Reimplemented from TDirectory.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
protected |
Return (if exists) TSQLClassInfo for specified class name and version.
Definition at line 1772 of file TSQLFile.cxx.
|
protected |
return (if exists) TSQLClassInfo for specified class
Definition at line 1791 of file TSQLFile.cxx.
|
protected |
Search for TKeySQL object with specified keyid.
Definition at line 1670 of file TSQLFile.cxx.
|
inlinefinalvirtual |
Synchronize a file's in-memory and on-disk states.
Reimplemented from TFile.
Definition at line 212 of file TSQLFile.h.
|
protectedinherited |
|
inlinevirtualinherited |
See documentation of TDirectoryFile::Get(const char *namecycle).
Reimplemented from TDirectory.
Definition at line 82 of file TDirectoryFile.h.
|
overridevirtualinherited |
Return pointer to object identified by namecycle.
namecycle has the format name;cycle
examples:
The retrieved object should in principle derive from TObject. If not, the function TDirectory::GetObject should be called. However, this function will still work for a non-TObject, providing that the calling application cast the return type to the correct type (which is the actual type of the object).
NOTE:
The method GetObject offer better protection and avoid the need for any cast:
VERY IMPORTANT NOTE:
In case the class of this object derives from TObject but not as a first inheritance, one must use dynamic_cast<>().
then on return, one can do:
then on return, one must do:
Of course, dynamic_cast<> can also be used in the example 1.
Reimplemented from TDirectory.
|
inlineinherited |
|
inline |
Definition at line 186 of file TSQLFile.h.
|
inlineprotectedvirtualinherited |
|
staticinherited |
|
staticinherited |
|
inherited |
|
protected |
Method return request results for specified objid from streamer classtable.
Definition at line 2463 of file TSQLFile.cxx.
|
protected |
Method return request results for specified objid from streamer classtable Data returned in form of statement, where direct access to values are possible.
Definition at line 2479 of file TSQLFile.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
inlinevirtualinherited |
|
inlinevirtualinherited |
|
virtualinherited |
|
virtualinherited |
|
staticinherited |
|
inherited |
|
inherited |
|
inlineinherited |
|
inherited |
|
inlineinherited |
|
inlineinherited |
Definition at line 91 of file TDirectoryFile.h.
| const char * TSQLFile::GetDataBaseName | ( | ) | const |
Return name of data base on the host For Oracle always return 0.
Definition at line 626 of file TSQLFile.cxx.
|
overridevirtualinherited |
Find a directory using apath.
It apath is null or empty, returns "this" directory. Otherwise use apath to find a directory. The absolute path syntax is: file.root:/dir1/dir2
where file.root is the file and /dir1/dir2 the desired subdirectory in the file. Relative syntax is relative to "this" directory. E.g: ../aa. Returns 0 in case path does not exist. If printError is true, use Error with 'funcname' to issue an error message.
Reimplemented from TDirectory.
|
virtualinherited |
Get option used by the graphics system to draw this object.
Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.
Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.
Definition at line 445 of file TObject.cxx.
|
staticinherited |
Return destructor only flag.
Definition at line 1196 of file TObject.cxx.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 214 of file TSQLFile.h.
|
inlinevirtualinherited |
|
staticinherited |
|
inlinefinalvirtual |
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 92 of file TDirectoryFile.h.
|
staticinherited |
|
staticinherited |
|
staticinherited |
|
virtualinherited |
Returns mime type name of object.
Used by the TBrowser (via TGMimeTypes class). Override for class of which you would like to have different icons for objects of the same class.
Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TASImage, TBranch, TBranchElement, TGeoVolume, TGMainFrame, TKey, TMethodBrowsable, TSystemFile, and TVirtualBranchBrowsable.
Definition at line 472 of file TObject.cxx.
|
inline |
Definition at line 196 of file TSQLFile.h.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
inlinevirtualinherited |
Definition at line 223 of file TDirectory.h.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 94 of file TDirectoryFile.h.
|
inlineinherited |
|
protected |
Return current locking mode for that file.
Definition at line 1347 of file TSQLFile.cxx.
Returns value of string, extracted from special table, where long strings are stored.
Definition at line 2273 of file TSQLFile.cxx.
|
inlineinherited |
Definition at line 95 of file TDirectoryFile.h.
|
inlineinherited |
Definition at line 225 of file TDirectory.h.
|
inlineinherited |
Definition at line 226 of file TDirectory.h.
|
inlineoverridevirtualinherited |
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 221 of file TSQLFile.h.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 220 of file TSQLFile.h.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 96 of file TDirectoryFile.h.
|
inlinevirtualinherited |
Reimplemented in TDavixFile, and TNetXNGFile.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 219 of file TSQLFile.h.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 97 of file TDirectoryFile.h.
|
protected |
Method return request result for specified objid from normal classtable.
Definition at line 2434 of file TSQLFile.cxx.
|
protected |
Return data for several objects from the range from normal class table.
Definition at line 2448 of file TSQLFile.cxx.
|
inlinevirtualinherited |
|
inlineinherited |
Get an object with proper type checking.
If the object doesn't exist in the file or if the type doesn't match, a nullptr is returned. Also see TDirectory::Get().
Definition at line 213 of file TDirectory.h.
|
overridevirtualinherited |
See documentation of TDirectory::GetObjectCheck(const char *namecycle, const TClass *cl).
Reimplemented from TDirectory.
|
overridevirtualinherited |
Return pointer to object identified by namecycle if and only if the actual object is a type suitable to be stored as a pointer to a "expectedClass" If expectedClass is null, no check is performed.
namecycle has the format name;cycle
VERY IMPORTANT NOTE:
The calling application must cast the returned pointer to the type described by the 2 arguments (i.e. cl):
Note: We recommend using the method TDirectory::GetObject:
Reimplemented from TDirectory.
Returns string containing info about the object at position (px,py).
This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).
Reimplemented in TASImage, TAxis3D, TColorWheel, TF1, TF2, TFileDrawMap, TGeoNode, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph, TH1, THistPainter, TNode, TPaletteAxis, TParallelCoordVar, and TVirtualHistPainter.
Definition at line 491 of file TObject.cxx.
|
staticinherited |
Get status of object stat flag.
Definition at line 1181 of file TObject.cxx.
|
overridevirtualinherited |
Return pointer to object identified by namecycle.
The returned object may or may not derive from TObject.
VERY IMPORTANT NOTE:
The calling application must cast the returned object to the final type, e.g.
Reimplemented from TDirectory.
|
staticinherited |
|
staticinherited |
|
inlineoverridevirtualinherited |
|
virtualinherited |
Returns the full path of the directory.
E.g. file:/dir1/dir2. The returned path will be re-used by the next call to GetPath().
Definition at line 1054 of file TDirectory.cxx.
|
virtualinherited |
Returns the full path of the directory.
E.g. file:/dir1/dir2. The returned path will be re-used by the next call to GetPath().
Definition at line 1016 of file TDirectory.cxx.
|
inline |
Definition at line 195 of file TSQLFile.h.
|
staticinherited |
|
inlinevirtualinherited |
|
staticinherited |
|
inherited |
Read the logical record header starting at a certain postion.
| [in] | buf | pointer to buffer |
| [in] | first | read offset |
| [in] | maxbytes | Bytes which are read into buf. |
| [out] | nbytes | Number of bytes in record if negative, this is a deleted record if 0, cannot read record, wrong value of argument first |
| [out] | objlen | Uncompressed object size |
| [out] | keylen | Length of logical record header |
The function reads nread bytes where nread is the minimum of maxbytes and the number of bytes before the end of file. The function returns nread. Note that the arguments objlen and keylen are returned only if maxbytes >=16
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 98 of file TDirectoryFile.h.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 222 of file TSQLFile.h.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 223 of file TSQLFile.h.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 100 of file TDirectoryFile.h.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 99 of file TDirectoryFile.h.
|
staticprotectedinherited |
Return the (address of) a shared pointer to the struct holding the actual thread local gDirectory pointer and the atomic_flag for its lock.
Definition at line 422 of file TDirectory.cxx.
|
inlinefinalvirtual |
Returns the current file size.
Returns -1 in case the file could not be stat'ed.
Reimplemented from TFile.
Definition at line 224 of file TSQLFile.h.
|
inherited |
|
finalvirtualinherited |
Read the list of TStreamerInfo objects written to this file.
The function returns a TList. It is the user's responsibility to delete the list created by this function.
Note the list, in addition to TStreamerInfo object, contains sometimes a TList named 'listOfRules' and containing the schema evolution rules related to the file's content.
Using the list, one can access additional information, e.g.:
|
finalprotectedvirtual |
Read back streamer infos from database List of streamer infos is always stored with key:id 0, which is not shown in normal keys list.
Reimplemented from TFile.
Definition at line 881 of file TSQLFile.cxx.
|
inline |
Definition at line 190 of file TSQLFile.h.
|
inlineoverridevirtualinherited |
|
staticinherited |
Resolve the file type as a function of the protocol field in 'name'.
If defined, the string 'prefix' is added when testing the locality of a 'name' with network-like structure (i.e. root://host//path); if the file is local, on return 'prefix' will contain the actual local path of the file.
|
virtualinherited |
Return the unique object id.
Definition at line 480 of file TObject.cxx.
|
inline |
Definition at line 194 of file TSQLFile.h.
|
inline |
Definition at line 184 of file TSQLFile.h.
|
inline |
Definition at line 192 of file TSQLFile.h.
|
inlineinherited |
Definition at line 234 of file TDirectory.h.
Execute action in response of a timer timing out.
This method must be overridden if an object has to react to timers.
Reimplemented in TGCommandPlugin, TGDNDManager, TGFileContainer, TGHtml, TGLEventHandler, TGPopupMenu, TGraphTime, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGuiBldDragManager, TGWindow, and TTreeViewer.
Definition at line 516 of file TObject.cxx.
|
inlineoverridevirtualinherited |
Return hash value for this object.
Note: If this routine is overloaded in a derived class, this derived class should also add
Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like
Reimplemented from TObject.
|
inlineinherited |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
missing call to RecursiveRemove in destructor).
Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)
|
protected |
Test if table name exists.
Definition at line 1882 of file TSQLFile.cxx.
|
protected |
Update value of modify counter in config table Modify counter used to indicate that something was changed in database.
It will be used when multiple instances of TSQLFile for the same data base will be connected.
Definition at line 1187 of file TSQLFile.cxx.
|
inlinevirtualinherited |
|
virtualinherited |
Issue info message.
Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.
Definition at line 1072 of file TObject.cxx.
|
virtualinherited |
Returns kTRUE if object inherits from class "classname".
Reimplemented in TClass.
Definition at line 549 of file TObject.cxx.
Returns kTRUE if object inherits from TClass cl.
Reimplemented in TClass.
Definition at line 557 of file TObject.cxx.
|
protectedvirtualinherited |
Initialize a TFile object.
| [in] | create | Create a new file. |
TFile implementations providing asynchronous open functionality need to override this method to run the appropriate checks before calling this standard initialization part. See TNetXNGFile::Init for an example.
Reimplemented in TDavixFile, and TNetXNGFile.
|
protectedinherited |
|
protected |
initialize sql database and correspondent structures identical to TFile::Init() function
Definition at line 997 of file TSQLFile.cxx.
|
virtualinherited |
Dump contents of this object in a graphics canvas.
Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.
The following picture is the Inspect of a histogram object:
Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TGFrame, TInspectorObject, and TSystemFile.
Definition at line 570 of file TObject.cxx.
|
inlineoverridevirtual |
Reimplemented from TFile.
Definition at line 254 of file TSQLFile.h.
|
inlinevirtualinherited |
|
inlineinherited |
Definition at line 235 of file TDirectory.h.
|
inlineinherited |
IsDestructed.
Default equal comparison (objects are equal if they have the same address in memory).
More complicated classes might want to override this function.
Reimplemented in TGObject, TObjString, TPair, and TQCommand.
Definition at line 589 of file TObject.cxx.
|
inlineoverridevirtualinherited |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
Reimplemented from TObject.
Reimplemented in TROOT.
Definition at line 236 of file TDirectory.h.
Checks if this is long string code returns 0, if not or string id.
Definition at line 2224 of file TSQLFile.cxx.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 101 of file TDirectoryFile.h.
| Bool_t TSQLFile::IsMySQL | ( | ) | const |
checks, if MySQL database
Definition at line 466 of file TSQLFile.cxx.
| Bool_t TSQLFile::IsODBC | ( | ) | const |
checks, if ODBC driver used for database connection
Definition at line 486 of file TSQLFile.cxx.
|
finalvirtual |
return kTRUE if file is opened and can be accessed
Reimplemented from TFile.
Definition at line 709 of file TSQLFile.cxx.
| Bool_t TSQLFile::IsOracle | ( | ) | const |
checks, if Oracle database
Definition at line 476 of file TSQLFile.cxx.
|
protected |
dummy, in future should check about read access to database
Definition at line 1371 of file TSQLFile.cxx.
|
inlineoverridevirtualinherited |
Reimplemented from TObject.
Reimplemented in TStructNodeProperty.
|
protected |
Checks if main keys table is existing.
Definition at line 1317 of file TSQLFile.cxx.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 102 of file TDirectoryFile.h.
|
protected |
Checkis, if lock is free in configuration tables.
Definition at line 1325 of file TSQLFile.cxx.
|
overridevirtualinherited |
List file contents.
Indentation is used to identify the file tree. Subdirectories are listed first, then objects in memory, then objects on the file.
Reimplemented from TDirectoryFile.
Mark unused bytes on the file.
The list of free segments is in the fFree linked list. When an object is deleted from the file, the freed space is added into the FREE linked list (fFree). The FREE list consists of a chain of consecutive free segments on the file. At the same time, the first 4 bytes of the freed record on the file are overwritten by GAPSIZE where GAPSIZE = -(Number of bytes occupied by the record).
Reimplemented from TFile.
Definition at line 231 of file TSQLFile.h.
|
inlinefinalvirtual |
Generate source code necessary to access the objects stored in the file.
Generate code in directory dirname for all classes specified in argument classes If classes = "*" (default and currently the only supported value), the function generates an include file for each class in the StreamerInfo list for which a TClass object does not exist.
The code generated includes:
In the generated classes, map, multimap when the first template parameter is a class are replaced by a vector of pair. set and multiset when the tempalte parameter is a class are replaced by a vector. This is required since we do not have the code needed to order and/or compare the object of the classes. This is a quick explanation of the options available:
| Option | Details |
|---|---|
| new (default) | A new directory dirname is created. If dirname already exist, an error message is printed and the function returns. |
| recreate | If dirname does not exist, it is created (like in "new"). If dirname already exist, all existing files in dirname are deleted before creating the new files. |
| update | New classes are added to the existing directory. Existing classes with the same name are replaced by the new definition. If the directory dirname doest not exist, same effect as "new". |
| genreflex | Use genreflex rather than rootcling to generate the dictionary. |
| par | Create a PAR file with the minimal set of code needed to read the content of the ROOT file. The name of the PAR file is basename(dirname), with extension '.par' enforced; the PAR file will be created at dirname(dirname). |
If, in addition to one of the 3 above options, the option "+" is specified, the function will generate:
gSystem->load("demo/demo.so");
The following feature is not yet enabled: One can restrict the list of classes to be generated by using expressions like:
classes = "Ali*" generate code only for classes starting with Ali classes = "myClass" generate code for class MyClass only.
Reimplemented from TFile.
Definition at line 232 of file TSQLFile.h.
Produce SELECT statement which can be used to get all data of class cl in one SELECT statement.
This statement also can be used to create VIEW by command like mysql> CREATE VIEW TH1I_view AS $CLASSSELECT$ Where $CLASSSELECT$ argument should be produced by call f->MakeSelectQuery(TH1I::Class()); VIEWs supported by latest MySQL 5 and Oracle
Definition at line 1214 of file TSQLFile.cxx.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 234 of file TSQLFile.h.
|
inlinefinalvirtual |
List the contents of a file sequentially.
For each logical record found, it prints:
Date/Time Record_Adress Logical_Record_Length ClassName CompressionFactor
Example of output
20010404/150437 At:64 N=150 TFile 20010404/150440 At:214 N=28326 TBasket CX = 1.13 20010404/150440 At:28540 N=29616 TBasket CX = 1.08 20010404/150440 At:58156 N=29640 TBasket CX = 1.08 20010404/150440 At:87796 N=29076 TBasket CX = 1.10 20010404/150440 At:116872 N=10151 TBasket CX = 3.15 20010404/150441 At:127023 N=28341 TBasket CX = 1.13 20010404/150441 At:155364 N=29594 TBasket CX = 1.08 20010404/150441 At:184958 N=29616 TBasket CX = 1.08 20010404/150441 At:214574 N=29075 TBasket CX = 1.10 20010404/150441 At:243649 N=9583 TBasket CX = 3.34 20010404/150442 At:253232 N=28324 TBasket CX = 1.13 20010404/150442 At:281556 N=29641 TBasket CX = 1.08 20010404/150442 At:311197 N=29633 TBasket CX = 1.08 20010404/150442 At:340830 N=29091 TBasket CX = 1.10 20010404/150442 At:369921 N=10341 TBasket CX = 3.09 20010404/150442 At:380262 N=509 TH1F CX = 1.93 20010404/150442 At:380771 N=1769 TH2F CX = 4.32 20010404/150442 At:382540 N=1849 TProfile CX = 1.65 20010404/150442 At:384389 N=18434 TNtuple CX = 4.51 20010404/150442 At:402823 N=307 KeysList 20010404/150443 At:403130 N=4548 StreamerInfo CX = 3.65 20010404/150443 At:407678 N=86 FreeSegments 20010404/150443 At:407764 N=1 END
If the parameter opt contains "forComp", the Date/Time is omitted and the decompressed size is also printed.
Record_Adress Logical_Record_Length Key_Length Object_Record_Length ClassName CompressionFactor
If the parameter opt contains "extended", the name and title of the keys are added: 20200820/155031 At:100 N=180 TFile name: hsimple.root title: Demo ROOT file with histograms 220200820/155032 At:280 N=28880 TBasket CX = 1.11 name: random title: ntuple 220200820/155032 At:29160 N=29761 TBasket CX = 1.08 name: px title: ntuple 220200820/155032 At:58921 N=29725 TBasket CX = 1.08 name: py title: ntuple 220200820/155032 At:88646 N=29209 TBasket CX = 1.10 name: pz title: ntuple 220200820/155032 At:117855 N=10197 TBasket CX = 3.14 name: i title: ntuple ... 20200820/155032 At:405110 N=808 TNtuple CX = 3.53 name: ntuple title: Demo ntuple 20200820/155706 At:405918 N=307 KeysList name: hsimple.root title: Demo ROOT file with histograms 20200820/155032 At:406225 N=8556 StreamerInfo CX = 3.42 name: StreamerInfo title: Doubly linked list 20200820/155708 At:414781 N=86 FreeSegments name: hsimple.root title: Demo ROOT file with histograms 20200820/155708 At:414867 N=1 END
Note: The combined size of the classname, name and title is truncated to 476 characters (a little more for regular keys of small files)
Reimplemented from TFile.
Definition at line 233 of file TSQLFile.h.
|
virtualinherited |
|
inherited |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
Definition at line 1160 of file TObject.cxx.
|
overridevirtualinherited |
Create a sub-directory "a" or a hierarchy of sub-directories "a/b/c/...".
| name | the name or hierarchy of the subdirectory ("a" or "a/b/c") |
| title | the title |
| returnExistingDirectory | if key-name is already existing, the returned value points to preexisting sub-directory if true and to nullptr if false. |
In particular, the steps to create first a/b/c and then a/b/d without receiving errors are:
or
Reimplemented from TDirectory.
|
inlinevirtualinherited |
|
virtualinherited |
This method must be overridden to handle object notification (the base implementation is no-op).
Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.
For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.
Reimplemented in h1analysis, h1analysisTreeReader, TARInterruptHandler, TASInputHandler, TASInterruptHandler, TASLogHandler, TASSigPipeHandler, TBlinkTimer, TBranchElement, TBranchRef, TBreakLineCom, TBrowserTimer, TCollection, TDelCharCom, TDelTextCom, TFileHandler, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TGLRedrawTimer, TGTextEditHist, TGuiBldDragManagerRepeatTimer, TIdleTimer, TInsCharCom, TInsTextCom, TInterruptHandler, TLeafObject, TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TPopupDelayTimer, TProcessEventTimer, TRefTable, TRepeatTimer, TSBRepeatTimer, TSelector, TSelectorDraw, TSelectorEntries, TSignalHandler, TSingleShotCleaner, TSocketHandler, TStdExceptionHandler, TSysEvtHandler, TTermInputHandler, TThreadTimer, TTimeOutTimer, TTimer, TTipDelayTimer, TTree, TTreeFormula, TTreeFormulaManager, TTreeReader, TViewTimer, and TViewUpdateTimer.
Definition at line 618 of file TObject.cxx.
|
inherited |
Use this method to declare a method obsolete.
Specify as of which version the method is obsolete and as from which version it will be removed.
Definition at line 1169 of file TObject.cxx.
|
staticinherited |
Create / open a file.
The type of the file can be either a TFile or any TFile derived class for which an plugin library handler has been registered with the plugin manager (for the plugin manager see the TPluginManager class). The returned type of TFile depends on the file name specified by 'url'. If 'url' is a '|'-separated list of file URLs, the 'URLs' are tried sequentially in the specified order until a successful open. If the file starts with "root:", "roots:" or "rootk:" an XRootD-backed file will be returned, with "http:" a curl-based file, with "file:" a local TFile, etc. (see the list of TFile plugin handlers in $ROOTSYS/etc/system.rootrc for regular expressions that will be checked) and as last a local file will be tried. Before opening a file via a remote API, a check is made to see if the URL specifies a local file. If that is the case the file will be opened via a normal TFile. To force the opening of a local file via a specify as host "localhost". The netopt argument is not used, any more. For the meaning of the options and other arguments see the constructors of the individual file classes. In case of error, it returns a nullptr.
For TFile implementations supporting asynchronous file open, see TFile::AsyncOpen(...), it is possible to request a timeout with the option TIMEOUT=<secs>: the timeout must be specified in seconds and it will be internally checked with granularity of one millisec. For remote files there is the option: CACHEREAD opens an existing file for reading through the file cache. The file will be downloaded to the cache and opened from there. If the download fails, it will be opened remotely. The file will be downloaded to the directory specified by SetCacheFileDir().
The caller is responsible for deleting the pointer. In READ mode, a nullptr is returned if the file does not exist or cannot be opened. In CREATE mode, a nullptr is returned if the file already exists or cannot be created. In RECREATE mode, a nullptr is returned if the file can not be created. In UPDATE mode, a nullptr is returned if the file cannot be created or opened.
|
staticinherited |
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
staticprivateinherited |
|
inherited |
Operator delete for sized deallocation.
Definition at line 1234 of file TObject.cxx.
|
inherited |
Operator delete.
Definition at line 1212 of file TObject.cxx.
|
inherited |
Only called by placement new when throwing an exception.
Definition at line 1266 of file TObject.cxx.
|
inherited |
Operator delete [] for sized deallocation.
Definition at line 1245 of file TObject.cxx.
|
inherited |
Operator delete [].
Definition at line 1223 of file TObject.cxx.
|
inherited |
Only called by placement new[] when throwing an exception.
Definition at line 1274 of file TObject.cxx.
|
inlineinherited |
|
inlineinherited |
|
inlineinherited |
|
privatedelete |
|
inlinefinalvirtual |
|
virtualinherited |
Pop on object drawn in a pad to the top of the display list.
I.e. it will be drawn last and on top of all other primitives.
Reimplemented in TFrame, TPad, and TVirtualPad.
Definition at line 640 of file TObject.cxx.
|
inlinefinalvirtual |
|
protected |
used by MakeClassSelectQuery method to add columns from table of class, specified by TVirtualStreamerInfo structure
Definition at line 1236 of file TSQLFile.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
virtualinherited |
Print the path of the directory.
Definition at line 1205 of file TDirectory.cxx.
|
virtualinherited |
Read contents of object with specified name from the current directory.
First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().
Reimplemented in TBuffer, TKey, TKeySQL, and TKeyXML.
Definition at line 673 of file TObject.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
Read a buffer from the file.
This is the basic low level read operation. Returns kTRUE in case of failure.
Reimplemented from TFile.
Definition at line 237 of file TSQLFile.h.
Read a buffer from the file at the offset 'pos' in the file.
Returns kTRUE in case of failure. Compared to ReadBuffer(char*, Int_t), this routine does not change the cursor on the physical file representation (fD) if the data is in this TFile's cache.
Reimplemented from TFile.
Definition at line 238 of file TSQLFile.h.
Reimplemented in TDavixFile.
Read the nbuf blocks described in arrays pos and len.
The value pos[i] is the seek position of block i of length len[i]. Note that for nbuf=1, this call is equivalent to TFile::ReafBuffer. Returns kTRUE in case of failure.
Reimplemented in TDavixFile, TDCacheFile, and TNetXNGFile.
|
protected |
read table configurations as special table
Definition at line 1053 of file TSQLFile.cxx.
|
inlinefinalvirtual |
Read the FREE linked list.
Every file has a linked list (fFree) of free segments. This linked list has been written on the file via WriteFree as a single data record.
Reimplemented from TFile.
Definition at line 239 of file TSQLFile.h.
Reimplemented from TDirectory.
|
virtualinherited |
Read data of special kind of objects.
Definition at line 850 of file TSQLFile.cxx.
|
protected |
Read all class infos from IdsTable.
Definition at line 1910 of file TSQLFile.cxx.
|
virtualinherited |
Read the list of StreamerInfo from this file.
The key with name holding the list of TStreamerInfo objects is read. The corresponding TClass objects are updated. Note that this function is not called if the static member fgReadInfo is false. (see TFile::SetReadStreamerInfo)
Reimplemented from TDirectory.
|
inlinefinalvirtual |
Attempt to recover file if not correctly closed.
The function returns the number of keys that have been recovered. If no keys can be recovered, the file will be declared Zombie by the calling function. This function is automatically called when opening a file. If the file is open in read only mode, the file is not modified. If open in update mode and the function finds something to recover, a new directory header is written to the file. When opening the file gain no message from Recover will be reported. If keys have been recovered, the file is usable and you can safely read the corresponding objects. If the file is not usable (a zombie), you can test for this case with code like:
If the file has been recovered, the bit kRecovered is set in the TFile object in memory. You can test if the file has been recovered with
if (f.TestBit(TFile::kRecovered)) {... the file has been recovered}
When writing TTrees to a file, it is important to save the Tree header at regular intervals (see TTree::AutoSave). If a file containing a Tree is recovered, the last Tree header written to the file will be used. In this case all the entries in all the branches written before writing the header are valid entries. One can disable the automatic recovery procedure by setting
TFile.Recover 0
in the system.rootrc file.
Reimplemented from TFile.
Definition at line 240 of file TSQLFile.h.
|
overridevirtualinherited |
Recursively remove object from a Directory.
Reimplemented from TObject.
Reimplemented in TROOT.
Definition at line 1213 of file TDirectory.cxx.
|
protectedinherited |
|
protectedinherited |
Remove an object from the in-memory list.
Reimplemented in TROOT.
Definition at line 1222 of file TDirectory.cxx.
Reopen a file with a different access mode, like from READ to See TFile::Open() for details.
Reimplemented from TFile.
Definition at line 718 of file TSQLFile.cxx.
|
protected |
Search in database tables for specified class and return TSQLClassInfo object.
Definition at line 1799 of file TSQLFile.cxx.
|
protected |
Search in database tables for specified class and return TSQLClassInfo object.
Definition at line 1902 of file TSQLFile.cxx.
|
virtualinherited |
Reimplemented in TMemFile.
|
inlinefinalvirtual |
|
overridevirtualinherited |
Removes subdirectory from the directory When directory is deleted, all keys in all subdirectories will be read first and deleted from file (if exists) Equivalent call is Delete("name;*");.
Reimplemented from TDirectory.
| Bool_t TSQLFile::Rollback | ( | ) |
Rollback all operations, done after StartTransaction() call.
Database should return to initial state.
Definition at line 592 of file TSQLFile.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
virtualinherited |
Save this object in the file specified by filename.
otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.
The function is available via the object context menu.
Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TClassTree, TFolder, TGeoVolume, TGObject, TGraph, TH1, TPad, TPaveClass, TSpline3, TSpline5, TSpline, TTreePerfStats, and TVirtualPad.
Definition at line 708 of file TObject.cxx.
|
overridevirtualinherited |
Save object in filename, if filename is nullptr or "", a file with "<objectname>.root" is created.
The name of the key is the object name. By default new file will be created. Using option "a", one can append object to the existing ROOT file. If the operation is successful, it returns the number of bytes written to the file otherwise it returns 0. By default a message is printed. Use option "q" to not print the message. If filename contains ".json" extension, JSON representation of the object will be created and saved in the text file. Such file can be used in JavaScript ROOT (https://root.cern/js/) to display object in web browser When creating JSON file, option string may contain compression level from 0 to 3 (default 0)
Reimplemented from TDirectory.
|
virtualinherited |
Save a primitive as a C++ statement(s) on output stream "out".
Reimplemented in TAnnotation, TArc, TArrow, TASImage, TAxis3D, TBox, TButton, TCanvas, TChain, TCrown, TCurlyArc, TCurlyLine, TCutG, TDiamond, TEfficiency, TEllipse, TExec, TF12, TF1, TF2, TF3, TFrame, TGaxis, TGButton, TGButtonGroup, TGCanvas, TGCheckButton, TGColorSelect, TGColumnLayout, TGComboBox, TGCompositeFrame, TGContainer, TGDockableFrame, TGDoubleHSlider, TGDoubleVSlider, TGedMarkerSelect, TGedPatternSelect, TGeoArb8, TGeoBBox, TGeoBoolNode, TGeoCombiTrans, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoCtub, TGeoDecayChannel, TGeoElementRN, TGeoEltu, TGeoGtra, TGeoHalfSpace, TGeoHMatrix, TGeoHype, TGeoIdentity, TGeoIntersection, TGeoMaterial, TGeoMedium, TGeoMixture, TGeoPara, TGeoParaboloid, TGeoPatternCylPhi, TGeoPatternCylR, TGeoPatternParaX, TGeoPatternParaY, TGeoPatternParaZ, TGeoPatternSphPhi, TGeoPatternSphR, TGeoPatternSphTheta, TGeoPatternTrapZ, TGeoPatternX, TGeoPatternY, TGeoPatternZ, TGeoPcon, TGeoPgon, TGeoRotation, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoSubtraction, TGeoTessellated, TGeoTorus, TGeoTranslation, TGeoTrap, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoUnion, TGeoVolume, TGeoXtru, TGFileContainer, TGFont, TGFrame, TGFSComboBox, TGGC, TGGroupFrame, TGHButtonGroup, TGHorizontal3DLine, TGHorizontalFrame, TGHorizontalLayout, TGHProgressBar, TGHScrollBar, TGHSlider, TGHSplitter, TGHtml, TGIcon, TGLabel, TGLayoutHints, TGLineStyleComboBox, TGLineWidthComboBox, TGListBox, TGListDetailsLayout, TGListLayout, TGListTree, TGListView, TGLVContainer, TGMainFrame, TGMatrixLayout, TGMdiFrame, TGMdiMainFrame, TGMdiMenuBar, TGMenuBar, TGMenuTitle, TGNumberEntry, TGNumberEntryField, TGPictureButton, TGPopupMenu, TGProgressBar, TGRadioButton, TGraph2D, TGraph2DAsymmErrors, TGraph2DErrors, TGraph, TGraphAsymmErrors, TGraphBentErrors, TGraphEdge, TGraphErrors, TGraphMultiErrors, TGraphNode, TGraphPolar, TGraphPolargram, TGraphStruct, TGroupButton, TGRowLayout, TGShapedFrame, TGShutter, TGShutterItem, TGSplitFrame, TGStatusBar, TGTab, TGTabLayout, TGTableLayout, TGTableLayoutHints, TGTextButton, TGTextEdit, TGTextEntry, TGTextLBEntry, TGTextView, TGTileLayout, TGToolBar, TGTransientFrame, TGTripleHSlider, TGTripleVSlider, TGVButtonGroup, TGVertical3DLine, TGVerticalFrame, TGVerticalLayout, TGVFileSplitter, TGVProgressBar, TGVScrollBar, TGVSlider, TGVSplitter, TGXYLayout, TGXYLayoutHints, TH1, TH2Poly, THelix, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TPad, TPaletteAxis, TParallelCoord, TParallelCoordVar, TPave, TPaveClass, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPieSlice, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TProfile2D, TProfile3D, TProfile, TRootContainer, TRootEmbeddedCanvas, TScatter2D, TScatter, TSlider, TSliderBox, TSpline3, TSpline5, TStyle, TText, TTreePerfStats, and TWbox.
Definition at line 858 of file TObject.cxx.
|
staticprotectedinherited |
Save object constructor in the output stream "out".
Can be used as first statement when implementing SavePrimitive() method for the object
Definition at line 777 of file TObject.cxx.
|
staticprotectedinherited |
Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
Definition at line 845 of file TObject.cxx.
|
protectedinherited |
Save object name and title into the output stream "out".
Definition at line 135 of file TNamed.cxx.
|
staticprotectedinherited |
Save array in the output stream "out" as vector.
Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()
Definition at line 796 of file TObject.cxx.
Reimplemented from TDirectory.
|
protected |
save data which is not yet in Database Typically this is streamerinfos structures or
Definition at line 905 of file TSQLFile.cxx.
|
inlinefinalvirtual |
Seek to a specific position in the file. Pos it either kBeg, kCur or kEnd.
Reimplemented from TFile.
Definition at line 242 of file TSQLFile.h.
| void TSQLFile::SetArrayLimit | ( | Int_t | limit = 20 | ) |
Defines maximum number of columns for array representation If array size bigger than limit, array data will be converted to raw format This is usefull to prevent tables with very big number of columns If limit==0, all arrays will be stored in raw format If limit<0, all array values will be stored in column form Default value is 21.
Definition at line 513 of file TSQLFile.cxx.
Set or unset the user status bits as specified in f.
Definition at line 888 of file TObject.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
virtualinherited |
Set a pointer to the read cache.
This relinquishes ownership of the previous cache, so if you do not already have a pointer to the previous cache (and there was a previous cache), you ought to retrieve (and delete it if needed) using:
TFileCacheRead *older = myfile->GetCacheRead();
The action specifies how to behave when detaching a cache from the the TFile. If set to (default) kDisconnect, the contents of the cache will be flushed when it is removed from the file, and it will disconnect the cache object from the file. In almost all cases, this is what you want. If you want to disconnect the cache temporarily from this tree and re-attach later to the same fil, you can set action to kDoNotDisconnect. This will allow things like prefetching to continue in the background while it is no longer the default cache for the TTree. Except for a few expert use cases, kDisconnect is likely the correct setting.
WARNING: if action=kDoNotDisconnect, you MUST delete the cache before TFile.
|
virtualinherited |
|
virtualinherited |
|
virtualinherited |
|
virtualinherited |
|
virtualinherited |
Set drawing option for object.
This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().
Reimplemented in RooPlot, TAxis, TBrowser, TGedFrame, TGFrame, TPad, TPaveStats, TRootBrowserLite, TSystemDirectory, and TSystemFile.
Definition at line 871 of file TObject.cxx.
|
staticinherited |
Set destructor only flag.
Definition at line 1204 of file TObject.cxx.
|
inlinefinalvirtual |
Reimplemented from TFile.
Definition at line 244 of file TSQLFile.h.
|
staticinherited |
|
staticinherited |
|
staticinherited |
|
protected |
Set locking mode for current database.
Definition at line 1333 of file TSQLFile.cxx.
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 118 of file TDirectoryFile.h.
|
inlinevirtualinherited |
Definition at line 259 of file TDirectory.h.
|
overridevirtualinherited |
Set the name for directory If the directory name is changed after the directory was written once, ROOT currently would NOT change the name of correspondent key in the mother directory.
DO NOT use this method to 'rename a directory'. Renaming a directory is currently NOT supported.
Reimplemented from TNamed.
Definition at line 1297 of file TDirectory.cxx.
|
virtualinherited |
Set all the TNamed parameters (name and title).
WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.
Reimplemented in RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, TContextMenu, TGraph2D, TGraph, TH1, and TNode.
Definition at line 163 of file TNamed.cxx.
|
staticinherited |
Turn on/off tracking of objects in the TObjectTable.
Definition at line 1188 of file TObject.cxx.
|
virtualinherited |
|
inlinevirtualinherited |
|
staticinherited |
|
inlinevirtualinherited |
Specify if the streamerinfos must be read at file opening.
If fgReadInfo is true (default) TFile::ReadStreamerInfo is called when opening the file. It may be interesting to set fgReadInfo to false to speedup the file opening time or in case libraries containing classes referenced by the file have not yet been loaded. if fgReadInfo is false, one can still read the StreamerInfo with myfile.ReadStreamerInfo();
|
inlineoverridevirtualinherited |
Reimplemented from TDirectory.
Definition at line 119 of file TDirectoryFile.h.
| void TSQLFile::SetTablesType | ( | const char * | tables_type | ) |
Defines tables type, which is used in CREATE TABLE statements Now is only used for MySQL database, where following types are supported: "BDB", "HEAP", "ISAM", "InnoDB", "MERGE", "MRG_MYISAM", "MYISAM" Default for TSQLFile is "InnoDB".
For more detailes see MySQL docs.
Definition at line 527 of file TSQLFile.cxx.
|
virtualinherited |
Set the title of the TNamed.
Reimplemented in Axis2, RooPlot, ROOT::Experimental::XRooFit::xRooNode, ROOT::TSchemaRule::TSources, TASImage, TEfficiency, TF1, TGraph2D, TGraph, TH1, THnBase, TParallelCoordVar, TSystemDirectory, and TSystemFile.
Definition at line 173 of file TNamed.cxx.
Reimplemented from TDirectory.
|
virtualinherited |
Set the unique object id.
Definition at line 899 of file TObject.cxx.
| void TSQLFile::SetUseIndexes | ( | Int_t | use_type = kIndexesBasic | ) |
Specify usage of indexes for data tables.
| Index | Description |
|---|---|
| kIndexesNone = 0 | no indexes are used |
| kIndexesBasic = 1 | indexes used only for keys list and objects list tables (default) |
| kIndexesClass = 2 | index also created for every normal class table |
| kIndexesAll = 3 | index created for every table, including streamer tables |
Indexes in general should increase speed of access to objects data, but they required more operations and more disk space on server side
Definition at line 614 of file TSQLFile.cxx.
enable/disable uasge of suffixes in columns names can be changed before first object is saved into file
Definition at line 497 of file TSQLFile.cxx.
| void TSQLFile::SetUseTransactions | ( | Int_t | mode = kTransactionsAuto | ) |
Defines usage of transactions statements for writing objects data to database.
| Index | Description | |----—|----------—| | kTransactionsOff=0 - no transaction operation are allowed | | kTransactionsAuto=1 - automatic mode. Each write operation, produced by TSQLFile, will be supplied by START TRANSACTION and COMMIT calls. If any error happen, ROLLBACK will returns database to previous state | | kTransactionsUser=2 - transactions are delegated to user. Methods StartTransaction(), Commit() and Rollback() should be called by user. |
Default UseTransactions option is kTransactionsAuto
Definition at line 547 of file TSQLFile.cxx.
Reimplemented from TDirectory.
|
virtualinherited |
|
inlinefinalvirtual |
Return the size in bytes of the file header.
Reimplemented from TFile.
Definition at line 245 of file TSQLFile.h.
|
inline |
Definition at line 188 of file TSQLFile.h.
supplies set of commands to server Commands is stored as array of TObjString
Definition at line 1472 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 134 of file TSQLFile.h.
|
protected |
Test if DB support statement and number of open statements is not exceeded.
Definition at line 1424 of file TSQLFile.cxx.
|
protected |
Commit SQL transaction.
Definition at line 1580 of file TSQLFile.cxx.
|
protected |
Returns sql type name which is most closer to ROOT basic type.
typ should be from TVirtualStreamerInfo:: constansts like TVirtualStreamerInfo::kInt
Definition at line 2565 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 135 of file TSQLFile.h.
|
inlineprotected |
Definition at line 144 of file TSQLFile.h.
|
protected |
Delete all tables in database.
Definition at line 1548 of file TSQLFile.cxx.
|
protected |
delete statement and decrease counter
Definition at line 1458 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 137 of file TSQLFile.h.
|
inlineprotected |
Definition at line 136 of file TSQLFile.h.
|
protected |
return SQL integer type
Definition at line 2573 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 138 of file TSQLFile.h.
|
protected |
returns maximum allowed length of identifiers
Definition at line 1596 of file TSQLFile.cxx.
|
protected |
Returns maximum value, found in specified columnname of table tablename Column type should be numeric.
Definition at line 1512 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 142 of file TSQLFile.h.
|
inlineprotected |
Definition at line 139 of file TSQLFile.h.
Read from objects table data for specified objectid.
Definition at line 2343 of file TSQLFile.cxx.
Produce array of TSQLObjectInfo objects for all objects, belong to that key Array should be deleted by calling function afterwards.
Definition at line 2370 of file TSQLFile.cxx.
|
protected |
Submits query to SQL server.
| Flag Value | Effect |
|---|---|
| 0 | result is not interesting and will be deleted |
| 1 | return result of submitted query |
| 2 | results is may be necessary for long time Oracle plugin do not support working with several TSQLResult |
objects, therefore explicit deep copy will be produced|
If ok!=0, it will contains kTRUE is Query was successful, otherwise kFALSE
Definition at line 1388 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 140 of file TSQLFile.h.
|
protected |
Rollback all SQL operations, done after start transaction.
Definition at line 1588 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 132 of file TSQLFile.h.
|
inlineprotected |
Definition at line 133 of file TSQLFile.h.
|
protected |
Start SQL transaction.
Definition at line 1572 of file TSQLFile.cxx.
|
protected |
Produces SQL statement for currently conected DB server.
Definition at line 1438 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 141 of file TSQLFile.h.
|
protected |
Test, if table of specified name exists.
Definition at line 1492 of file TSQLFile.cxx.
|
inlineprotected |
Definition at line 143 of file TSQLFile.h.
| void TSQLFile::StartLogFile | ( | const char * | fname | ) |
start logging of all SQL statements in specified file
Definition at line 446 of file TSQLFile.cxx.
| Bool_t TSQLFile::StartTransaction | ( | ) |
Start user transaction.
This can be usesful, when big number of objects should be stored in data base and commitment required only if all operations were successful. In that case in the end of all operations method Commit() should be called. If operation on user-level is looks like not successful, method Rollback() will return database data and TSQLFile instance to previous state. In MySQL not all tables types support transaction mode of operation. See SetTablesType() method for details .
Definition at line 564 of file TSQLFile.cxx.
| void TSQLFile::StopLogFile | ( | ) |
close logging file
Definition at line 455 of file TSQLFile.cxx.
|
protected |
Store object in database. Return stored object id or -1 if error.
Definition at line 2510 of file TSQLFile.cxx.
|
overridevirtual |
Streamer for TSQLFile class.
Stores only data for TDirectory.
Reimplemented from TFile.
Definition at line 2667 of file TSQLFile.cxx.
|
inline |
Definition at line 254 of file TSQLFile.h.
|
protected |
read keys for specified directory (when update == kFALSE) or update value for modified keys when update == kTRUE Returns number of successfully read keys or -1 if error
Definition at line 919 of file TSQLFile.cxx.
|
inherited |
Interface to system close. All arguments like in POSIX close().
Reimplemented from TFile.
Definition at line 45 of file TSQLFile.h.
|
virtualinherited |
Issue system error message.
Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.
Definition at line 1112 of file TObject.cxx.
|
inlinefinalprotectedvirtual |
Interface to system open. All arguments like in POSIX open().
Reimplemented from TFile.
Definition at line 44 of file TSQLFile.h.
Interface to system read. All arguments like in POSIX read().
Reimplemented from TFile.
Definition at line 46 of file TSQLFile.h.
Interface to system lseek.
All arguments like in POSIX lseek() except that the offset and return value are of a type which are able to handle 64 bit file systems.
Reimplemented from TFile.
Definition at line 48 of file TSQLFile.h.
|
inlinefinalprotectedvirtual |
Return file stat information.
The interface and return value is identical to TSystem::GetPathInfo(). The function returns 0 in case of success and 1 if the file could not be stat'ed.
Reimplemented from TFile.
Definition at line 49 of file TSQLFile.h.
Interface to system fsync. All arguments like in POSIX fsync().
Reimplemented from TFile.
Definition at line 50 of file TSQLFile.h.
Interface to system write. All arguments like in POSIX write().
Reimplemented from TFile.
Definition at line 47 of file TSQLFile.h.
|
protectedinherited |
UnRegister a TContext pointing to this TDirectory object.
Definition at line 1444 of file TDirectory.cxx.
Updates (overwrites) key data in KeysTable.
Definition at line 1721 of file TSQLFile.cxx.
|
virtualinherited |
|
protected |
Checks that table for big strings is exists If not, will be created.
Definition at line 2186 of file TSQLFile.cxx.
|
protected |
Checks that objects table is exists If not, table will be created Returns maximum value for existing objects id.
Definition at line 2304 of file TSQLFile.cxx.
|
inherited |
|
virtualinherited |
Issue warning message.
Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.
Definition at line 1084 of file TObject.cxx.
|
inlinefinalvirtual |
One can not save a const TDirectory object.
Reimplemented from TFile.
Definition at line 249 of file TSQLFile.h.
|
inlinefinalvirtual |
Write memory objects to this file.
Loop on all objects in memory (including subdirectories). A new key is created in the KEYS linked list for each object. The list of keys is then saved on the file (via WriteKeys) as a single data record. For values of opt see TObject::Write(). The directory header info is rewritten on the directory header record. The linked list of FREE segments is written. The file header is written (bytes 1->fBEGIN).
Reimplemented from TFile.
Definition at line 248 of file TSQLFile.h.
Write a buffer to the file.
This is the basic low level write operation. Returns kTRUE in case of failure.
Reimplemented from TFile.
Definition at line 247 of file TSQLFile.h.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
inlinefinalvirtual |
Write FREE linked list on the file.
The linked list of FREE segments (fFree) is written as a single data record.
Reimplemented from TFile.
Definition at line 250 of file TSQLFile.h.
|
finalvirtual |
Write file info like configurations, title, UUID and other.
Reimplemented from TFile.
Definition at line 781 of file TSQLFile.cxx.
Add entry into keys table.
Definition at line 1690 of file TSQLFile.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
inlineinherited |
Write an object with proper type checking.
| [in] | obj | Pointer to an object to be written. |
| [in] | name | Name of the object in the file. |
| [in] | option | Options. See TDirectoryFile::WriteTObject. |
| [in] | bufsize | Buffer size. See TDirectoryFile::WriteTObject. |
This overload takes care of instances of classes that are derived from TObject. The method redirects to TDirectory::WriteTObject.
Definition at line 297 of file TDirectory.h.
|
inlineinherited |
Write an object with proper type checking.
| [in] | obj | Pointer to an object to be written. |
| [in] | name | Name of the object in the file. |
| [in] | option | Options. See TDirectoryFile::WriteTObject. |
| [in] | bufsize | Buffer size. See TDirectoryFile::WriteTObject. |
This overload takes care of instances of classes that are not derived from TObject. The method redirects to TDirectory::WriteObjectAny.
Definition at line 283 of file TDirectory.h.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
virtualinherited |
|
protected |
write special kind of object like streamer infos or file itself keys for that objects should exist in tables but not indicated in list of keys, therefore users can not get them with TDirectoryFile::Get() method
Definition at line 828 of file TSQLFile.cxx.
|
finalvirtual |
Store all TVirtualStreamerInfo, used in file, in sql database.
Reimplemented from TFile.
Definition at line 789 of file TSQLFile.cxx.
|
overridevirtualinherited |
Reimplemented from TDirectory.
|
friend |
Definition at line 32 of file TSQLFile.h.
|
friend |
Definition at line 33 of file TSQLFile.h.
|
friend |
Definition at line 38 of file TSQLFile.h.
|
friend |
Definition at line 37 of file TSQLFile.h.
|
friend |
Definition at line 36 of file TSQLFile.h.
|
friend |
Definition at line 34 of file TSQLFile.h.
|
friend |
Definition at line 35 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
|
protected |
! limit for array size. when array bigger, its content converted to raw format
Definition at line 152 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
|
protected |
! pointer on list of basic types specific for currently connected SQL server
Definition at line 160 of file TSQLFile.h.
|
protectedinherited |
|
privateinherited |
|
protectedinherited |
Default buffer size to create new TKeys.
Definition at line 41 of file TDirectoryFile.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
|
protected |
! variable indicates can be basic configuration changed or not
Definition at line 153 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
! Pointer to a list of TContext object pointing to this TDirectory
Definition at line 145 of file TDirectory.h.
|
protectedinherited |
! Counter delaying the TDirectory destructor from finishing.
Definition at line 153 of file TDirectory.h.
|
protectedinherited |
Date and time when directory is created.
Definition at line 37 of file TDirectoryFile.h.
|
protectedinherited |
Date and time of last modification.
Definition at line 38 of file TDirectoryFile.h.
|
protectedinherited |
|
protectedinherited |
Pointer to current file in memory.
Definition at line 45 of file TDirectoryFile.h.
|
protectedinherited |
|
inlinestaticprotectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
protectedinherited |
! thread local gDirectory pointing to this object.
Definition at line 151 of file TDirectory.h.
|
staticprivateinherited |
|
staticprotectedinherited |
|
protectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
staticprotectedinherited |
|
protected |
! indicate if IdsTable exists
Definition at line 167 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
Pointer to keys list in memory.
Definition at line 46 of file TDirectoryFile.h.
|
protectedinherited |
List of objects in memory.
Definition at line 142 of file TDirectory.h.
|
protected |
! log file with SQL statements
Definition at line 165 of file TSQLFile.h.
True if directory has been modified.
Definition at line 35 of file TDirectoryFile.h.
|
protected |
! indicates how many changes was done with database tables
Definition at line 157 of file TSQLFile.h.
|
protectedinherited |
pointer to mother of the directory
Definition at line 141 of file TDirectory.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
Number of bytes for the keys.
Definition at line 39 of file TDirectoryFile.h.
|
protectedinherited |
Number of bytes in TNamed at creation time.
Definition at line 40 of file TDirectoryFile.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
|
protected |
! pointer on list of other SQL types like TEXT or blob
Definition at line 161 of file TSQLFile.h.
|
mutableprotectedinherited |
! Buffer for GetPath() function
Definition at line 144 of file TDirectory.h.
|
protectedinherited |
|
protected |
! how many query was applied
Definition at line 158 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
Location of directory on file.
Definition at line 42 of file TDirectoryFile.h.
|
protectedinherited |
|
protectedinherited |
|
protectedinherited |
Location of Keys record on file.
Definition at line 44 of file TDirectoryFile.h.
|
protectedinherited |
Location of parent directory on file.
Definition at line 43 of file TDirectoryFile.h.
|
mutableprotectedinherited |
! MSVC doesn't support = ATOMIC_FLAG_INIT;
Definition at line 154 of file TDirectory.h.
|
protected |
! interface to SQL database
Definition at line 146 of file TSQLFile.h.
|
protected |
! list of SQL class infos
Definition at line 148 of file TSQLFile.h.
|
protected |
! version of SQL I/O which is stored in configurations
Definition at line 151 of file TSQLFile.h.
|
protected |
! count numbers of active statements
Definition at line 168 of file TSQLFile.h.
|
protectedinherited |
|
protectedinherited |
|
protected |
! type, used in CREATE TABLE statements
Definition at line 154 of file TSQLFile.h.
|
privateinherited |
|
protectedinherited |
|
protected |
! use indexes for tables: 0 - off, 1 - only for basic tables, 2 + normal class tables, 3 - all tables
Definition at line 156 of file TSQLFile.h.
|
protected |
! user name, used to access objects from database
Definition at line 163 of file TSQLFile.h.
|
protected |
! use suffixes in column names like fValue:Int_t or fObject:pointer
Definition at line 150 of file TSQLFile.h.
|
protected |
! use transaction statements for writing data into the tables
Definition at line 155 of file TSQLFile.h.
|
protectedinherited |
Unique identifier.
Definition at line 143 of file TDirectory.h.
|
protectedinherited |
True if directory is writable.
Definition at line 36 of file TDirectoryFile.h.
|
protectedinherited |
|
protectedinherited |
