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TChainElement.cxx
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1// @(#)root/tree:$Id$
2// Author: Rene Brun 11/02/97
3
4/*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12/** \class TChainElement
13\ingroup tree
14
15A TChainElement describes a component of a TChain.
16*/
17
18#include "TChainElement.h"
19#include "TBuffer.h"
20#include "TTree.h"
21#include "Riostream.h"
22#include "TROOT.h"
23
25
26////////////////////////////////////////////////////////////////////////////////
27/// Default constructor for a chain element.
28
29TChainElement::TChainElement() : TNamed(),fBaddress(0),fBaddressType(0),
30 fBaddressIsPtr(kFALSE), fDecomposedObj(kFALSE), fCheckedType(kFALSE), fBranchPtr(0), fLoadResult(0)
31{
32 fNPackets = 0;
33 fPackets = 0;
34 fEntries = 0;
35 fPacketSize = 100;
36 fStatus = -1;
38}
39
40////////////////////////////////////////////////////////////////////////////////
41/// Create a chain element.
42
43TChainElement::TChainElement(const char *name, const char *title)
44 :TNamed(name,title),fBaddress(0),fBaddressType(0),
45 fBaddressIsPtr(kFALSE), fDecomposedObj(kFALSE), fCheckedType(kFALSE), fBranchPtr(0), fLoadResult(0)
46{
47 fNPackets = 0;
48 fPackets = 0;
49 fEntries = 0;
50 fPacketSize = 100;
51 fStatus = -1;
53}
54
55////////////////////////////////////////////////////////////////////////////////
56/// Default destructor for a chain element.
57
59{
60 delete [] fPackets;
61}
62
63////////////////////////////////////////////////////////////////////////////////
64/// Initialize the packet descriptor string.
65
67{
69 delete [] fPackets;
70 fPackets = new char[fNPackets+1];
71 for (Int_t i=0;i<fNPackets;i++) fPackets[i] = ' ';
73
74}
75
76////////////////////////////////////////////////////////////////////////////////
77/// List files in the chain.
78
80{
82 std::cout << GetTitle() << "tree:" << GetName() << " entries=";
84 std::cout << "<not calculated>";
85 else
86 std::cout << fEntries;
87 std::cout << '\n';
88}
89
90////////////////////////////////////////////////////////////////////////////////
91/// Set number of entries per packet for parallel root.
92
94{
95 fPacketSize = size;
96}
97
98////////////////////////////////////////////////////////////////////////////////
99/// Set/Reset the looked-up bit
100
102{
103 if (y)
105 else
107}
108
int Int_t
Definition: RtypesCore.h:41
const Bool_t kFALSE
Definition: RtypesCore.h:88
bool Bool_t
Definition: RtypesCore.h:59
const char Option_t
Definition: RtypesCore.h:62
#define ClassImp(name)
Definition: Rtypes.h:365
char name[80]
Definition: TGX11.cxx:109
A TChainElement describes a component of a TChain.
Definition: TChainElement.h:28
virtual ~TChainElement()
Default destructor for a chain element.
Long64_t fEntries
Number of entries in the tree of this chain element.
Definition: TChainElement.h:36
Int_t fPacketSize
Number of events in one packet for parallel root.
Definition: TChainElement.h:38
virtual void SetLookedUp(Bool_t y=kTRUE)
Set/Reset the looked-up bit.
virtual void SetPacketSize(Int_t size=100)
Set number of entries per packet for parallel root.
Int_t fNPackets
Number of packets.
Definition: TChainElement.h:37
char * fPackets
! Packet descriptor string
Definition: TChainElement.h:46
Int_t fStatus
branch status when used as a branch
Definition: TChainElement.h:39
TChainElement()
Default constructor for a chain element.
virtual void CreatePackets()
Initialize the packet descriptor string.
virtual void ls(Option_t *option="") const
List files in the chain.
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
virtual const char * GetTitle() const
Returns title of object.
Definition: TNamed.h:48
virtual const char * GetName() const
Returns name of object.
Definition: TNamed.h:47
void SetBit(UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.
Definition: TObject.cxx:694
void ResetBit(UInt_t f)
Definition: TObject.h:171
static void IndentLevel()
Functions used by ls() to indent an object hierarchy.
Definition: TROOT.cxx:2829
static constexpr Long64_t kMaxEntries
Definition: TTree.h:217
Double_t y[n]
Definition: legend1.C:17