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c2bf4728 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | // The ESD is available as member fESD | |
19 | // | |
20 | // The Process function is nearly empty. Implement your analysis there and look at the other listed below functions you | |
21 | // might need. | |
22 | // | |
23 | // The following methods can be overrriden. Please do not forgot to call the base class function. | |
24 | // | |
25 | // Begin(): called everytime a loop on the tree starts, | |
26 | // a convenient place to create your histograms. | |
27 | // SlaveBegin(): called after Begin(), when on PROOF called only on the | |
28 | // slave servers. | |
29 | // Init(): called for each new tree. Enable/Disable branches here. | |
30 | // Process(): called for each event, in this function you decide what | |
31 | // to read and fill your histograms. | |
32 | // SlaveTerminate: called at the end of the loop on the tree, when on PROOF | |
33 | // called only on the slave servers. | |
34 | // Terminate(): called at the end of the loop on the tree, | |
35 | // a convenient place to draw/fit your histograms. | |
36 | // | |
37 | // Author: Jan.Fiete.Grosse-Oetringhaus@cern.ch | |
38 | ||
39 | #include "AliEmptySelector.h" | |
40 | ||
41 | #include <AliLog.h> | |
42 | #include <AliESD.h> | |
43 | ||
44 | ClassImp(AliEmptySelector) | |
45 | ||
46 | AliEmptySelector::AliEmptySelector() : | |
47 | AliSelector() | |
48 | { | |
49 | // | |
50 | // Constructor. Initialization of pointers | |
51 | // | |
52 | } | |
53 | ||
54 | AliEmptySelector::~AliEmptySelector() | |
55 | { | |
56 | // | |
57 | // Destructor | |
58 | // | |
59 | } | |
60 | ||
61 | Bool_t AliEmptySelector::Process(Long64_t entry) | |
62 | { | |
63 | // | |
64 | // Implement your analysis here. Do not forget to call the parent class Process by | |
65 | // if (AliSelector::Process(entry) == kFALSE) | |
66 | // return kFALSE; | |
67 | // | |
68 | ||
69 | if (AliSelector::Process(entry) == kFALSE) | |
70 | return kFALSE; | |
71 | ||
72 | // Check prerequisites | |
73 | if (!fESD) | |
74 | { | |
75 | AliDebug(AliLog::kError, "ESD branch not available"); | |
76 | return kFALSE; | |
77 | } | |
78 | ||
79 | printf("In event %d we have %d ESD tracks.\n", (Int_t) entry, fESD->GetNumberOfTracks()); | |
80 | ||
81 | return kTRUE; | |
82 | } |