1 #ifndef ALIANALYSISDATACONTAINER_H
2 #define ALIANALYSISDATACONTAINER_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 // Author: Andrei Gheata, 31/05/2006
9 //==============================================================================
10 // AliAnalysysDataContainer - Container of data of arbitrary type deriving
11 // from TObject used for analysis. A container must be connected to the
12 // output data slot of a single analysis task (producer) , but also as
13 // input slot for possibly several other tasks (consumers). The connected
14 // slots must enforce the same data type as the container (or a derived type).
15 // A container becomes the owner of the contained data once this was produced.
16 //==============================================================================
25 class AliAnalysisTask;
28 class AliAnalysisDataContainer : public TNamed {
36 AliAnalysisDataContainer();
37 AliAnalysisDataContainer(const AliAnalysisDataContainer &cont);
38 AliAnalysisDataContainer(const char *name, TClass *type);
39 virtual ~AliAnalysisDataContainer();
42 AliAnalysisDataContainer &operator=(const AliAnalysisDataContainer &cont);
44 TObject *GetData() const {return fData;}
45 TClass *GetType() const {return fType;}
46 AliAnalysisTask *GetProducer() const {return fProducer;}
47 TObjArray *GetConsumers() const {return fConsumers;}
48 virtual void GetEntry(Long64_t ientry);
50 void ResetDataReady() {fDataReady = kFALSE;}
51 virtual Bool_t SetData(TObject *data, Option_t *option="");
52 void SetDataOwned(Bool_t flag) {fOwnedData = flag;}
53 void OpenFile(const char *name, Option_t *option="RECREATE");
54 void SetProducer(AliAnalysisTask *prod, Int_t islot);
55 void AddConsumer(AliAnalysisTask *cons, Int_t islot);
57 // Container status checking
58 Bool_t IsDataReady() const {return fDataReady;}
59 Bool_t IsOwnedData() const {return fOwnedData;}
60 Bool_t ClientsExecuted() const;
61 Bool_t HasConsumers() const {return (fConsumers != 0);}
62 Bool_t HasProducer() const {return (fProducer != 0);}
63 // Send a notify signal to the container
64 virtual void NotifyChange(ENotifyMessage /*type*/) {;}
65 // Print connected tasks/status
66 void PrintContainer(Option_t *option="all", Int_t indent=0) const;
70 Bool_t fDataReady; // Flag that data is ready
71 Bool_t fOwnedData; // Flag data ownership
72 TFile *fFile; // File storing the data
73 TObject *fData; // Contained data
74 TClass *fType; // Type of contained data
75 AliAnalysisTask *fProducer; // Analysis task to which the slot belongs
76 TObjArray *fConsumers; // List of consumers of the data
78 ClassDef(AliAnalysisDataContainer,1) // Class describing a data container for analysis