1 // @(#)root/table:$Id$
2 // Author: Valery Fine(fine@bnl.gov) 25/12/98
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 #ifndef ROOT_TObjectSet
12 #define ROOT_TObjectSet
13
14 #include "TDataSet.h"
15
16 //////////////////////////////////////////////////////////////////////////////////////
17 // //
18 // TObjectSet - is a container TDataSet //
19 // This means this object has an extra pointer to an embedded //
20 // TObject. //
21 // Terminology: This TObjectSet may be an OWNER of the embeded TObject //
22 // If the container is the owner it can delete the embeded object //
23 // otherwsie it leaves that object "as is" //
24 // //
25 //////////////////////////////////////////////////////////////////////////////////////
26
27 class TObjectSet : public TDataSet {
28 protected:
29 enum EOwnerBits { kIsOwner = BIT(23) };
30 TObject *fObj; // TObject to be inserted
31
32 public:
33 TObjectSet(const Char_t *name, TObject *obj=0,Bool_t makeOwner=kTRUE);
34 TObjectSet(TObject *obj=0,Bool_t makeOwner=kTRUE);
35 virtual ~TObjectSet();
36 virtual TObject *AddObject(TObject *obj,Bool_t makeOwner=kTRUE);
37 virtual void Browse(TBrowser *b);
38 virtual void Delete(Option_t *opt="");
39 virtual Bool_t DoOwner(Bool_t done=kTRUE);
40 virtual Long_t HasData() const;
41 virtual TObject *GetObject() const;
42 virtual TDataSet *Instance() const;
43 virtual Bool_t IsOwner() const;
44 virtual void SetObject(TObject *obj);
45 virtual TObject *SetObject(TObject *obj,Bool_t makeOwner);
46
47 static TObjectSet *instance();
48
49 ClassDef(TObjectSet,1) // TDataSet wrapper for TObject class objects
50 };
51
52 inline TObjectSet *TObjectSet::instance()
53 { return new TObjectSet();}
54
55 inline Long_t TObjectSet::HasData() const {return fObj ? 1 : 0;}
56 inline TObject *TObjectSet::GetObject() const {return fObj;}
57 inline Bool_t TObjectSet::IsOwner() const {return TestBit(kIsOwner);}
58
59 inline void TObjectSet::SetObject(TObject *obj) { SetObject(obj,kTRUE);}
60
61 #endif
62
63