Added docs and fixed a bug
[u/mrichter/AliRoot.git] / FMD / AliFMDMultAlgorithm.cxx
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e802be3e 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//____________________________________________________________________
19//
20// Base class for FMD reconstruction algorithms.
21//
22// Derived classes will implement various ways of reconstructing the
23// charge particle multiplicity in the FMD.
24//
7684b53c 25// +---------------------+ +---------------------+
26// | AliFMDReconstructor |<>-----| AliFMDMultAlgorithm |
27// +---------------------+ +---------------------+
28// ^
29// |
30// +-----------+---------+
31// | |
32// +-------------------+ +------------------+
33// | AliFMDMultPoisson | | AliFMDMultNaiive |
34// +-------------------+ +------------------+
35//
36// AliFMDReconstructor acts as a manager class. It contains a list of
37// AliFMDMultAlgorithm objects. The call graph looks something like
38//
39//
40// +----------------------+ +----------------------+
41// | :AliFMDReconstructor | | :AliFMDMultAlgorithm |
42// +----------------------+ +----------------------+
43// | |
44// Reconstruct +-+ |
45// ------------>| | PreRun +-+
46// | |------------------------------->| |
47// | | +-+
48// | |-----+ (for each event) |
49// | | | *ProcessEvent |
50// |+-+ | |
51// || |<---+ PreEvent +-+
52// || |------------------------------>| |
53// || | +-+
54// || |-----+ |
55// || | | ProcessDigits |
56// ||+-+ | |
57// ||| |<---+ |
58// ||| | *ProcessDigit(digit) +-+
59// ||| |----------------------------->| |
60// ||| | +-+
61// ||+-+ |
62// || | PostEvent +-+
63// || |------------------------------>| |
64// || | +-+
65// |+-+ |
66// | | PostRun +-+
67// | |------------------------------->| |
68// | | +-+
69// +-+ |
70// | |
71//
72//
56b1929b 73#include "AliFMDMultAlgorithm.h" // ALIFMDMULTALGORITHM_H
74#include "AliFMDDigit.h" // ALIFMDDIGIT_H
75#include <TClonesArray.h> // ROOT_TClonesArray
e802be3e 76
77//____________________________________________________________________
56b1929b 78ClassImp(AliFMDMultAlgorithm);
e802be3e 79
80//____________________________________________________________________
56b1929b 81AliFMDMultAlgorithm::AliFMDMultAlgorithm(const char* name, const char* title)
82 : TNamed(name, title),
83 fTreeR(0),
84 fMult(0),
85 fFMD(0)
e802be3e 86{}
87
56b1929b 88//____________________________________________________________________
89AliFMDMultAlgorithm::~AliFMDMultAlgorithm()
90{
91 if (fMult) delete fMult;
92}
93
94
95//____________________________________________________________________
96void
97AliFMDMultAlgorithm::PreEvent(TTree* treeR, Float_t /* ipZ */)
98{
99 if (fMult) fMult->Clear();
100 fNMult = 0;
101 fTreeR = treeR;
102}
103
e802be3e 104
105
106//____________________________________________________________________
107//
108// EOF
109//