The generic field for a (nested) std::vector<Type> except for std::vector<bool>
Definition at line 371 of file RField.hxx.
Public Member Functions | |
RVectorField (RVectorField &&other)=default | |
RVectorField (std::string_view fieldName, std::unique_ptr< Detail::RFieldBase > itemField) | |
~RVectorField ()=default | |
void | AcceptVisitor (Detail::RFieldVisitor &visitor) const final |
Detail::RFieldValue | CaptureValue (void *where) override |
Creates a value from a memory location with an already constructed object. | |
void | CommitCluster () final |
Perform housekeeping tasks for global to cluster-local index translation. | |
void | DestroyValue (const Detail::RFieldValue &value, bool dtorOnly=false) final |
Releases the resources acquired during GenerateValue (memory and constructor) This implementation works for simple types but needs to be overwritten for complex ones. | |
void | GenerateColumnsImpl () final |
Creates the backing columns corresponsing to the field type for writing. | |
void | GenerateColumnsImpl (const RNTupleDescriptor &desc) final |
Creates the backing columns corresponsing to the field type for reading. | |
Detail::RFieldValue | GenerateValue (void *where) override |
Generates a tree value in a given location of size at least GetValueSize(). | |
size_t | GetAlignment () const final |
For many types, the alignment requirement is equal to the size; otherwise override. | |
void | GetCollectionInfo (const RClusterIndex &clusterIndex, RClusterIndex *collectionStart, ClusterSize_t *size) const |
void | GetCollectionInfo (NTupleSize_t globalIndex, RClusterIndex *collectionStart, ClusterSize_t *size) const |
size_t | GetValueSize () const override |
The number of bytes taken by a value of the appropriate type. | |
RVectorField & | operator= (RVectorField &&other)=default |
std::vector< Detail::RFieldValue > | SplitValue (const Detail::RFieldValue &value) const final |
Creates the list of direct child values given a value for this field. | |
Public Member Functions inherited from ROOT::Experimental::Detail::RFieldBase | |
RFieldBase (const RFieldBase &)=delete | |
RFieldBase (RFieldBase &&)=default | |
RFieldBase (std::string_view name, std::string_view type, ENTupleStructure structure, bool isSimple, std::size_t nRepetitions=0) | |
The constructor creates the underlying column objects and connects them to either a sink or a source. | |
virtual | ~RFieldBase () |
std::size_t | Append (const RFieldValue &value) |
Write the given value into columns. | |
void | Attach (std::unique_ptr< Detail::RFieldBase > child) |
Add a new subfield to the list of nested fields. | |
RSchemaIterator | begin () |
std::unique_ptr< RFieldBase > | Clone (std::string_view newName) const |
Copies the field and its sub fields using a possibly new name and a new, unconnected set of columns. | |
void | ConnectPageSink (RPageSink &pageSink) |
Fields and their columns live in the void until connected to a physical page storage. | |
void | ConnectPageSource (RPageSource &pageSource) |
RSchemaIterator | end () |
void | Flush () const |
Ensure that all received items are written from page buffers to the storage. | |
RFieldValue | GenerateValue () |
Generates an object of the field type and allocates new initialized memory according to the type. | |
std::string | GetDescription () const |
Get the field's description. | |
virtual RNTupleVersion | GetFieldVersion () const |
Indicates an evolution of the mapping scheme from C++ type to columns. | |
std::string | GetName () const |
NTupleSize_t | GetNElements () const |
std::size_t | GetNRepetitions () const |
DescriptorId_t | GetOnDiskId () const |
RFieldBase * | GetParent () const |
ENTupleStructure | GetStructure () const |
std::vector< RFieldBase * > | GetSubFields () const |
std::string | GetType () const |
virtual RNTupleVersion | GetTypeVersion () const |
Indicates an evolution of the C++ type itself. | |
bool | IsSimple () const |
RFieldBase & | operator= (const RFieldBase &)=delete |
RFieldBase & | operator= (RFieldBase &&)=default |
void | Read (const RClusterIndex &clusterIndex, RFieldValue *value) |
void | Read (NTupleSize_t globalIndex, RFieldValue *value) |
Populate a single value with data from the tree, which needs to be of the fitting type. | |
void | SetDescription (std::string_view description) |
void | SetOnDiskId (DescriptorId_t id) |
Protected Member Functions | |
std::size_t | AppendImpl (const Detail::RFieldValue &value) final |
Operations on values of complex types, e.g. | |
std::unique_ptr< Detail::RFieldBase > | CloneImpl (std::string_view newName) const final |
Called by Clone(), which additionally copies the on-disk ID. | |
void | ReadGlobalImpl (NTupleSize_t globalIndex, Detail::RFieldValue *value) final |
Protected Member Functions inherited from ROOT::Experimental::Detail::RFieldBase | |
ROOT::Experimental::EColumnType | EnsureColumnType (const std::vector< EColumnType > &requestedTypes, unsigned int columnIndex, const RNTupleDescriptor &desc) |
Throws an exception if the column given by fOnDiskId and the columnIndex in the provided descriptor is not of one of the requested types. | |
virtual void | ReadInClusterImpl (const RClusterIndex &clusterIndex, RFieldValue *value) |
Private Attributes | |
std::size_t | fItemSize |
ClusterSize_t | fNWritten |
Additional Inherited Members | |
Static Public Member Functions inherited from ROOT::Experimental::Detail::RFieldBase | |
static RResult< std::unique_ptr< RFieldBase > > | Create (const std::string &fieldName, const std::string &typeName) |
Factory method to resurrect a field from the stored on-disk type information. | |
static RResult< void > | EnsureValidFieldName (std::string_view fieldName) |
Check whether a given string is a valid field name. | |
Protected Attributes inherited from ROOT::Experimental::Detail::RFieldBase | |
std::vector< std::unique_ptr< RColumn > > | fColumns |
The columns are connected either to a sink or to a source (not to both); they are owned by the field. | |
RFieldBase * | fParent |
Sub fields point to their mother field. | |
RColumn * | fPrincipalColumn |
Points into fColumns. | |
std::vector< std::unique_ptr< RFieldBase > > | fSubFields |
Collections and classes own sub fields. | |
#include <ROOT/RField.hxx>
ROOT::Experimental::RVectorField::RVectorField | ( | std::string_view | fieldName, |
std::unique_ptr< Detail::RFieldBase > | itemField | ||
) |
Definition at line 1003 of file RField.cxx.
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default |
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default |
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finalvirtual |
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1113 of file RField.cxx.
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finalprotectedvirtual |
Operations on values of complex types, e.g.
ones that involve multiple columns or for which no direct column type exists.
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1019 of file RField.cxx.
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overridevirtual |
Creates a value from a memory location with an already constructed object.
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 1090 of file RField.cxx.
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finalprotectedvirtual |
Called by Clone(), which additionally copies the on-disk ID.
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 1013 of file RField.cxx.
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finalvirtual |
Perform housekeeping tasks for global to cluster-local index translation.
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1108 of file RField.cxx.
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finalvirtual |
Releases the resources acquired during GenerateValue (memory and constructor) This implementation works for simple types but needs to be overwritten for complex ones.
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1076 of file RField.cxx.
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finalvirtual |
Creates the backing columns corresponsing to the field type for writing.
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 1058 of file RField.cxx.
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finalvirtual |
Creates the backing columns corresponsing to the field type for reading.
The method should to check, using the page source and fOnDiskId, if the column types match and throw if they don't.
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 1065 of file RField.cxx.
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overridevirtual |
Generates a tree value in a given location of size at least GetValueSize().
Assumes that where has been allocated by malloc().
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 1071 of file RField.cxx.
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inlinefinalvirtual |
For many types, the alignment requirement is equal to the size; otherwise override.
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 395 of file RField.hxx.
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inline |
Definition at line 401 of file RField.hxx.
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inline |
Definition at line 398 of file RField.hxx.
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inlineoverridevirtual |
The number of bytes taken by a value of the appropriate type.
Implements ROOT::Experimental::Detail::RFieldBase.
Definition at line 394 of file RField.hxx.
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default |
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finalprotectedvirtual |
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1034 of file RField.cxx.
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finalvirtual |
Creates the list of direct child values given a value for this field.
E.g. a single value for the correct variant or all the elements of a collection. The default implementation assumes no sub values and returns an empty vector.
Reimplemented from ROOT::Experimental::Detail::RFieldBase.
Definition at line 1096 of file RField.cxx.
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private |
Definition at line 373 of file RField.hxx.
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private |
Definition at line 374 of file RField.hxx.