00001 // @(#)root/tree:$Id: TChainElement.h 20882 2007-11-19 11:31:26Z rdm $ 00002 // Author: Rene Brun 11/02/97 00003 00004 /************************************************************************* 00005 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * 00006 * All rights reserved. * 00007 * * 00008 * For the licensing terms see $ROOTSYS/LICENSE. * 00009 * For the list of contributors see $ROOTSYS/README/CREDITS. * 00010 *************************************************************************/ 00011 #ifndef ROOT_TChainElement 00012 #define ROOT_TChainElement 00013 00014 00015 ////////////////////////////////////////////////////////////////////////// 00016 // // 00017 // TChainElement // 00018 // // 00019 // Describes a component of a TChain. // 00020 // // 00021 ////////////////////////////////////////////////////////////////////////// 00022 00023 00024 #ifndef ROOT_TNamed 00025 #include "TNamed.h" 00026 #endif 00027 00028 class TBranch; 00029 00030 class TChainElement : public TNamed { 00031 00032 // TChainElement status bits 00033 enum EStatusBits { 00034 kHasBeenLookedUp = BIT(15) 00035 }; 00036 00037 protected: 00038 Long64_t fEntries; //Number of entries in the tree of this chain element 00039 Int_t fNPackets; //Number of packets 00040 Int_t fPacketSize; //Number of events in one packet for parallel root 00041 Int_t fStatus; //branch status when used as a branch 00042 void *fBaddress; //!branch address when used as a branch 00043 TString fBaddressClassName;//!Name of the class pointed to by fBaddress 00044 UInt_t fBaddressType; //!Type of the value pointed to by fBaddress 00045 Bool_t fBaddressIsPtr; //!True if the address is a pointer to an address 00046 char *fPackets; //!Packet descriptor string 00047 TBranch **fBranchPtr; //!Address of user branch pointer (to updated upon loading a file) 00048 00049 public: 00050 TChainElement(); 00051 TChainElement(const char *title, const char *filename); 00052 virtual ~TChainElement(); 00053 virtual void CreatePackets(); 00054 virtual void *GetBaddress() const {return fBaddress;} 00055 virtual const char *GetBaddressClassName() const { return fBaddressClassName; } 00056 virtual Bool_t GetBaddressIsPtr() const { return fBaddressIsPtr; } 00057 virtual UInt_t GetBaddressType() const { return fBaddressType; } 00058 virtual TBranch **GetBranchPtr() const { return fBranchPtr; } 00059 virtual Long64_t GetEntries() const {return fEntries;} 00060 virtual char *GetPackets() const {return fPackets;} 00061 virtual Int_t GetPacketSize() const {return fPacketSize;} 00062 virtual Int_t GetStatus() const {return fStatus;} 00063 virtual Bool_t HasBeenLookedUp() { return TestBit(kHasBeenLookedUp); } 00064 virtual void ls(Option_t *option="") const; 00065 virtual void SetBaddress(void *add) {fBaddress = add;} 00066 virtual void SetBaddressClassName(const char* clname) { fBaddressClassName = clname; } 00067 virtual void SetBaddressIsPtr(Bool_t isptr) { fBaddressIsPtr = isptr; } 00068 virtual void SetBaddressType(UInt_t type) { fBaddressType = type; } 00069 virtual void SetBranchPtr(TBranch **ptr) { fBranchPtr = ptr; } 00070 virtual void SetLookedUp(Bool_t y = kTRUE); 00071 virtual void SetNumberEntries(Long64_t n) {fEntries=n;} 00072 virtual void SetPacketSize(Int_t size = 100); 00073 virtual void SetStatus(Int_t status) {fStatus = status;} 00074 00075 ClassDef(TChainElement,2); //A chain element 00076 }; 00077 00078 #endif 00079
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