[u/mrichter/AliRoot.git] / MUON / AliMUONDigitStoreV1.cxx

/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
*                                                                        *
* Author: The ALICE Off-line Project.                                    *
* Contributors are mentioned in the code where appropriate.              *
*                                                                        *
* Permission to use, copy, modify and distribute this software and its   *
* documentation strictly for non-commercial purposes is hereby granted   *
* without fee, provided that the above copyright notice appears in all   *
* copies and that both the copyright notice and this permission notice   *
* appear in the supporting documentation. The authors make no claims     *
* about the suitability of this software for any purpose. It is          *
* provided "as is" without express or implied warranty.                  *
**************************************************************************/

// $Id$

#include "AliMUONDigitStoreV1.h"

//-----------------------------------------------------------------------------
/// \class AliMUONDigitStoreV1
///
/// (Legacy) Implementation of AliMUONVDigitStore. 
/// Called legacy as the internal structure corresponds to what we
/// used to write as MUON.(S)Digits.root files, before the switch 
/// to data stores.
///
// \author Laurent Aphecetche, Subatech
//-----------------------------------------------------------------------------

#include "AliLog.h"
#include "AliMUONDigit.h"
#include "AliMUONDigitStoreV1Iterator.h"
#include "AliMUONTOTCAStoreIterator.h"
#include "AliMUONTreeManager.h"
#include "AliMpConstants.h"
#include "AliMpDEManager.h"
#include "AliMpDEManager.h"
#include "AliMpStationType.h"
#include <Riostream.h>
#include <TClonesArray.h>
#include <TObjArray.h>
#include <TTree.h>

/// \cond CLASSIMP
ClassImp(AliMUONDigitStoreV1)
/// \endcond

namespace
{
  TString BaseName(const TString& name)
  {
    if ( name == "TreeS" ) return "MUONSDigit";
    if ( name == "TreeD" ) return "MUONDigit";
    return "";
  }
}

//_____________________________________________________________________________
AliMUONDigitStoreV1::AliMUONDigitStoreV1()
: AliMUONVDigitStore(), 
fDigits(new TObjArray(AliMpConstants::NofChambers())),
fChamberDigits(0x0)
{
  /// ctor
  fDigits->SetOwner(kTRUE);
  for ( Int_t i = 0; i < fDigits->GetSize(); ++i )
  {
    TClonesArray* tca = new TClonesArray("AliMUONDigit",100);
    tca->SetOwner(kTRUE);
    fDigits->AddAt(tca,i);
  }
  Clear();
  AliDebug(1,"");
}

//_____________________________________________________________________________
AliMUONDigitStoreV1::AliMUONDigitStoreV1(const AliMUONDigitStoreV1&)
: AliMUONVDigitStore(), 
fDigits(0x0),
fChamberDigits(0x0)
{
  /// copy ctor
  AliError("Please implement me");
}

//_____________________________________________________________________________
AliMUONDigitStoreV1& 
AliMUONDigitStoreV1::operator=(const AliMUONDigitStoreV1&)
{
  /// assignement operator
  AliError("Please implement me");
  return *this;
}

//_____________________________________________________________________________
AliMUONDigitStoreV1::~AliMUONDigitStoreV1()
{
  /// dtor
  delete fDigits;
}


//_____________________________________________________________________________
void 
AliMUONDigitStoreV1::Clear(Option_t* /*opt*/)
{
  /// Clear the tclonesarray, but keep the tobjarray's size constant.

  for ( Int_t i = 0; i <= fDigits->GetLast(); ++i ) 
  {
    ChamberDigits(i)->Clear("C");
  }  
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::Add(const AliMUONVDigit& vdigit, EReplacePolicy replace)
{
  /// Try to add a digit to the store. Return whether the try was successfull
  /// or not.
  /// 
  /// If the digit is already there, the action taken depends on "replace"
  /// kAllow -> replacement will occur (i.e. return kTRUE)
  /// kDeny -> replacement will *not* occur (and returned value is kFALSE)
  /// kMerge -> both digits will be merged into one (return kTRUE)
  ///
  
  const AliMUONDigit* digit = dynamic_cast<const AliMUONDigit*>(&vdigit);
  
  if (!digit)
  {
    AliError(Form("Digit is not of the expected type (%s vs AliMUONdigit)",
                  vdigit.ClassName()));
    return 0x0;
  }
  
  Int_t index(-1);
  
  if ( replace != kIgnore ) 
  {
    AliMUONVDigit* alreadyThere = Find(*digit,index);
  
    if ( alreadyThere ) 
    {
      if ( replace == kDeny ) 
      {
        return 0x0;
      }
      if ( replace == kMerge ) 
      {
        alreadyThere->MergeWith(*digit);
        return alreadyThere;
      }
    }
  }
  
  Int_t detElemId = digit->DetElemId();
  Int_t iChamber = AliMpDEManager::GetChamberId(detElemId);
  TClonesArray* array = ChamberDigits(iChamber);
  if ( index < 0 )
  {
    index = array->GetLast()+1;
  }
  return (new((*array)[index]) AliMUONDigit(*digit));
}

//_____________________________________________________________________________
Bool_t
AliMUONDigitStoreV1::Connect(TTree& tree, Bool_t alone) const
{
  /// Connect this to the tree.
  
  AliMUONTreeManager tman;
  Bool_t ok(kTRUE);
  
  TString baseName(BaseName(tree.GetName()));
                     
  // Search for branch MUON(S)Digits1 to know if we need to set branch addresses
  // or to make them.
  TBranch* branch = tree.GetBranch(Form("%ss%d",baseName.Data(),1));
  
  Bool_t isMaking = (branch==0);
  
  if ( isMaking ) 
  {
    for ( Int_t i = 0; i < AliMpConstants::NofChambers(); ++i ) 
    {
      TString branchName(Form("%ss%d",baseName.Data(),i+1));
      ok = ok && tman.MakeBranch(tree,ClassName(),"TClonesArray",
                                 branchName.Data(),ChamberDigitsPtr(i));
    }
  }
  else
  {
    if ( alone && baseName != "MUONSDigit" ) 
    {
      // TreeS only has digits, so there's not need to play the branch status
      // game
      tman.UpdateBranchStatuses(tree,baseName.Data());
    }
    for ( Int_t i = 0; i < AliMpConstants::NofChambers(); ++i ) 
    {
      TString branchName(Form("%ss%d",baseName.Data(),i+1));
      ok = ok && tman.SetAddress(tree,branchName.Data(),ChamberDigitsPtr(i));
    }
  }
  
  return ok;
}

//_____________________________________________________________________________
TObject**
AliMUONDigitStoreV1::ChamberDigitsPtr(Int_t chamberId) const
{
  /// Get the address of the TClonesArray storing digits for chamberId.

  TObject* object = fDigits->At(chamberId);

  if (!object)
  {
    AliError(Form("Cannot get digits for chamberId=%d",chamberId));
    return 0x0;
  }
  else
  {
    return fDigits->GetObjectRef(object);
  }
}

//_____________________________________________________________________________
TClonesArray*
AliMUONDigitStoreV1::ChamberDigits(Int_t chamberId)
{
  /// Returns the tclonesarray storing digits for chamberId
  return static_cast<TClonesArray*>(fDigits->At(chamberId));
}

//_____________________________________________________________________________
const TClonesArray*
AliMUONDigitStoreV1::ChamberDigits(Int_t chamberId) const
{
  /// Returns the tclonesarray storing digits for chamberId
  return static_cast<TClonesArray*>(fDigits->At(chamberId));
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::CreateDigit(Int_t detElemId, Int_t manuId,
                                 Int_t manuChannel, Int_t cathode) const
{
  return new AliMUONDigit(detElemId,manuId,manuChannel,cathode);
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::Remove(AliMUONVDigit& digit)
{
  /// Remove one digit, and returns it, thus returning 0x0 if digit
  /// is not present.
  
  Int_t index;
  AliMUONVDigit* d(0x0);
  if ( ( d = FindIndex(digit.DetElemId(),digit.ManuId(),
                       digit.ManuChannel(),digit.Cathode(),index) ) )
  {
    Int_t iChamber = AliMpDEManager::GetChamberId(digit.DetElemId());
    TClonesArray* array = ChamberDigits(iChamber);
    array->RemoveAt(index);
    array->Compress();
  }
  return d;
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::Find(const AliMUONVDigit& digit, Int_t& index) const
{
  /// Find a digit, and return its index.
  return FindIndex(digit.DetElemId(),digit.ManuId(),digit.ManuChannel(),digit.Cathode(),index);
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::FindObject(Int_t detElemId, Int_t manuId, 
                                Int_t manuChannel, Int_t cathode) const
{
  /// Find a (trigger) digit
  Int_t index;
  return FindIndex(detElemId,manuId,manuChannel,cathode,index);
}

//_____________________________________________________________________________
AliMUONVDigit* 
AliMUONDigitStoreV1::FindIndex(Int_t detElemId, Int_t manuId, 
                               Int_t manuChannel, Int_t cathode, Int_t& index) const
{
  /// Find and return the index of a digit
  
  Int_t iChamber = AliMpDEManager::GetChamberId(detElemId);
  const TClonesArray* array = ChamberDigits(iChamber);
  if (!array) return 0x0;
  TIter next(array);
  AliMUONVDigit* digit;
  index=0;
  while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
  {
    if ( digit->DetElemId() == detElemId &&
         digit->ManuId() == manuId &&
         digit->ManuChannel() == manuChannel &&
         digit->Cathode() == cathode ) 
    {
      return digit;
    }
    ++index;
  }
  return 0x0;
  
}

//_____________________________________________________________________________
TIterator* 
AliMUONDigitStoreV1::CreateIterator() const
{
  /// Return an iterator on the full store
  return new AliMUONTOTCAStoreIterator(fDigits,0,13);
}

//_____________________________________________________________________________
TIterator* 
AliMUONDigitStoreV1::CreateTrackerIterator() const
{
  /// Return an iterator on the tracker part of the store
  return new AliMUONTOTCAStoreIterator(fDigits,0,9);
}

//_____________________________________________________________________________
TIterator* 
AliMUONDigitStoreV1::CreateTriggerIterator() const
{
  /// Return an iterator on the trigger part of the store
  return new AliMUONTOTCAStoreIterator(fDigits,10,13);
}

//_____________________________________________________________________________
TIterator* 
AliMUONDigitStoreV1::CreateIterator(Int_t firstDetElemId, Int_t lastDetElemId,
                                    Int_t cathode) const
{
  /// Return an iterator on part of the store
  return new AliMUONDigitStoreV1Iterator(fDigits,firstDetElemId,lastDetElemId,cathode);
}

//_____________________________________________________________________________
Int_t
AliMUONDigitStoreV1::GetSize() const
{
  /// Return the number of digits we store
  Int_t n(0);
  
  for ( Int_t i = 0; i <= fDigits->GetLast(); ++i ) 
  {
    n += ChamberDigits(i)->GetEntries();
  }  
  return n;
}

//_____________________________________________________________________________
Bool_t 
AliMUONDigitStoreV1::HasMCInformation() const
{
  /// As this class is legacy, don't care about looping and loosing a bit of
  /// time...
  TIter next(CreateIterator());
  AliMUONVDigit* digit;
  while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
  {
    if ( digit->HasMCInformation() ) return kTRUE;
  }
  return kFALSE;
}
Commit	Line	Data
4d3f0fd0	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	#include "AliMUONDigitStoreV1.h"
	19
3d1463c8	20	//-----------------------------------------------------------------------------
4d3f0fd0	21	/// \class AliMUONDigitStoreV1
	22	///
	23	/// (Legacy) Implementation of AliMUONVDigitStore.
	24	/// Called legacy as the internal structure corresponds to what we
	25	/// used to write as MUON.(S)Digits.root files, before the switch
	26	/// to data stores.
	27	///
	28	// \author Laurent Aphecetche, Subatech
3d1463c8	29	//-----------------------------------------------------------------------------
4d3f0fd0	30
	31	#include "AliLog.h"
	32	#include "AliMUONDigit.h"
	33	#include "AliMUONDigitStoreV1Iterator.h"
	34	#include "AliMUONTOTCAStoreIterator.h"
	35	#include "AliMUONTreeManager.h"
	36	#include "AliMpConstants.h"
	37	#include "AliMpDEManager.h"
	38	#include "AliMpDEManager.h"
	39	#include "AliMpStationType.h"
	40	#include <Riostream.h>
	41	#include <TClonesArray.h>
	42	#include <TObjArray.h>
	43	#include <TTree.h>
	44
	45	/// \cond CLASSIMP
	46	ClassImp(AliMUONDigitStoreV1)
	47	/// \endcond
	48
	49	namespace
	50	{
	51	TString BaseName(const TString& name)
	52	{
	53	if ( name == "TreeS" ) return "MUONSDigit";
	54	if ( name == "TreeD" ) return "MUONDigit";
	55	return "";
	56	}
	57	}
	58
	59	//_____________________________________________________________________________
	60	AliMUONDigitStoreV1::AliMUONDigitStoreV1()
	61	: AliMUONVDigitStore(),
	62	fDigits(new TObjArray(AliMpConstants::NofChambers())),
	63	fChamberDigits(0x0)
	64	{
	65	/// ctor
	66	fDigits->SetOwner(kTRUE);
	67	for ( Int_t i = 0; i < fDigits->GetSize(); ++i )
	68	{
	69	TClonesArray* tca = new TClonesArray("AliMUONDigit",100);
	70	tca->SetOwner(kTRUE);
	71	fDigits->AddAt(tca,i);
	72	}
	73	Clear();
	74	AliDebug(1,"");
	75	}
	76
	77	//_____________________________________________________________________________
	78	AliMUONDigitStoreV1::AliMUONDigitStoreV1(const AliMUONDigitStoreV1&)
	79	: AliMUONVDigitStore(),
	80	fDigits(0x0),
	81	fChamberDigits(0x0)
	82	{
	83	/// copy ctor
	84	AliError("Please implement me");
	85	}
	86
	87	//_____________________________________________________________________________
	88	AliMUONDigitStoreV1&
	89	AliMUONDigitStoreV1::operator=(const AliMUONDigitStoreV1&)
	90	{
	91	/// assignement operator
	92	AliError("Please implement me");
	93	return *this;
94	}
95
96	//_____________________________________________________________________________
97	AliMUONDigitStoreV1::~AliMUONDigitStoreV1()
98	{
99	/// dtor
100	delete fDigits;
101	}
102
103
104	//_____________________________________________________________________________
105	void
106	AliMUONDigitStoreV1::Clear(Option_t* /opt/)
107	{
108	/// Clear the tclonesarray, but keep the tobjarray's size constant.
109
110	for ( Int_t i = 0; i <= fDigits->GetLast(); ++i )
111	{
112	ChamberDigits(i)->Clear("C");
113	}
114	}
115
116	//_____________________________________________________________________________
117	AliMUONVDigit*
118	AliMUONDigitStoreV1::Add(const AliMUONVDigit& vdigit, EReplacePolicy replace)
119	{
120	/// Try to add a digit to the store. Return whether the try was successfull
121	/// or not.
122	///
123	/// If the digit is already there, the action taken depends on "replace"
124	/// kAllow -> replacement will occur (i.e. return kTRUE)
125	/// kDeny -> replacement will not occur (and returned value is kFALSE)
126	/// kMerge -> both digits will be merged into one (return kTRUE)
127	///
128
129	const AliMUONDigit* digit = dynamic_cast<const AliMUONDigit*>(&vdigit);
130
131	if (!digit)
132	{
133	AliError(Form("Digit is not of the expected type (%s vs AliMUONdigit)",
134	vdigit.ClassName()));
135	return 0x0;
136	}
137
138	Int_t index(-1);
139
140	if ( replace != kIgnore )
141	{
142	AliMUONVDigit* alreadyThere = Find(*digit,index);
143
144	if ( alreadyThere )
145	{
146	if ( replace == kDeny )
147	{
148	return 0x0;
149	}
150	if ( replace == kMerge )
151	{
152	alreadyThere->MergeWith(*digit);
153	return alreadyThere;
154	}
155	}
156	}
157
158	Int_t detElemId = digit->DetElemId();
159	Int_t iChamber = AliMpDEManager::GetChamberId(detElemId);
160	TClonesArray* array = ChamberDigits(iChamber);
161	if ( index < 0 )
162	{
163	index = array->GetLast()+1;
164	}
165	return (new((array)[index]) AliMUONDigit(digit));
166	}
167
168	//_____________________________________________________________________________
169	Bool_t
170	AliMUONDigitStoreV1::Connect(TTree& tree, Bool_t alone) const
171	{
172	/// Connect this to the tree.
173
174	AliMUONTreeManager tman;
175	Bool_t ok(kTRUE);
176
177	TString baseName(BaseName(tree.GetName()));
178
179	// Search for branch MUON(S)Digits1 to know if we need to set branch addresses
180	// or to make them.
181	TBranch* branch = tree.GetBranch(Form("%ss%d",baseName.Data(),1));
182
183	Bool_t isMaking = (branch==0);
184
185	if ( isMaking )
186	{
187	for ( Int_t i = 0; i < AliMpConstants::NofChambers(); ++i )
188	{
189	TString branchName(Form("%ss%d",baseName.Data(),i+1));
190	ok = ok && tman.MakeBranch(tree,ClassName(),"TClonesArray",
191	branchName.Data(),ChamberDigitsPtr(i));
192	}
193	}
194	else
195	{
196	if ( alone && baseName != "MUONSDigit" )
197	{
198	// TreeS only has digits, so there's not need to play the branch status
199	// game
200	tman.UpdateBranchStatuses(tree,baseName.Data());
201	}
202	for ( Int_t i = 0; i < AliMpConstants::NofChambers(); ++i )
203	{
204	TString branchName(Form("%ss%d",baseName.Data(),i+1));
205	ok = ok && tman.SetAddress(tree,branchName.Data(),ChamberDigitsPtr(i));
206	}
207	}
208
209	return ok;
210	}
211
212	//_____________________________________________________________________________
213	TObject**
214	AliMUONDigitStoreV1::ChamberDigitsPtr(Int_t chamberId) const
215	{
216	/// Get the address of the TClonesArray storing digits for chamberId.
217
4d3f0fd0	218	TObject* object = fDigits->At(chamberId);
	219
	220	if (!object)
	221	{
	222	AliError(Form("Cannot get digits for chamberId=%d",chamberId));
	223	return 0x0;
	224	}
	225	else
	226	{
	227	return fDigits->GetObjectRef(object);
	228	}
	229	}
	230
	231	//_____________________________________________________________________________
	232	TClonesArray*
	233	AliMUONDigitStoreV1::ChamberDigits(Int_t chamberId)
	234	{
	235	/// Returns the tclonesarray storing digits for chamberId
	236	return static_cast<TClonesArray*>(fDigits->At(chamberId));
	237	}
	238
	239	//_____________________________________________________________________________
	240	const TClonesArray*
	241	AliMUONDigitStoreV1::ChamberDigits(Int_t chamberId) const
	242	{
	243	/// Returns the tclonesarray storing digits for chamberId
	244	return static_cast<TClonesArray*>(fDigits->At(chamberId));
	245	}
	246
	247	//_____________________________________________________________________________
	248	AliMUONVDigit*
	249	AliMUONDigitStoreV1::CreateDigit(Int_t detElemId, Int_t manuId,
	250	Int_t manuChannel, Int_t cathode) const
	251	{
	252	return new AliMUONDigit(detElemId,manuId,manuChannel,cathode);
	253	}
	254
	255	//_____________________________________________________________________________
	256	AliMUONVDigit*
	257	AliMUONDigitStoreV1::Remove(AliMUONVDigit& digit)
	258	{
	259	/// Remove one digit, and returns it, thus returning 0x0 if digit
	260	/// is not present.
	261
	262	Int_t index;
	263	AliMUONVDigit* d(0x0);
02ab99ac	264	if ( ( d = FindIndex(digit.DetElemId(),digit.ManuId(),
02ab99ac	265	digit.ManuChannel(),digit.Cathode(),index) ) )
4d3f0fd0	266	{
	267	Int_t iChamber = AliMpDEManager::GetChamberId(digit.DetElemId());
	268	TClonesArray* array = ChamberDigits(iChamber);
	269	array->RemoveAt(index);
	270	array->Compress();
	271	}
	272	return d;
	273	}
	274
4d3f0fd0	275	//_____________________________________________________________________________
	276	AliMUONVDigit*
	277	AliMUONDigitStoreV1::Find(const AliMUONVDigit& digit, Int_t& index) const
	278	{
	279	/// Find a digit, and return its index.
02ab99ac	280	return FindIndex(digit.DetElemId(),digit.ManuId(),digit.ManuChannel(),digit.Cathode(),index);
4d3f0fd0	281	}
	282
	283	//_____________________________________________________________________________
	284	AliMUONVDigit*
02ab99ac	285	AliMUONDigitStoreV1::FindObject(Int_t detElemId, Int_t manuId,
02ab99ac	286	Int_t manuChannel, Int_t cathode) const
4d3f0fd0	287	{
	288	/// Find a (trigger) digit
	289	Int_t index;
02ab99ac	290	return FindIndex(detElemId,manuId,manuChannel,cathode,index);
4d3f0fd0	291	}
	292
	293	//_____________________________________________________________________________
	294	AliMUONVDigit*
02ab99ac	295	AliMUONDigitStoreV1::FindIndex(Int_t detElemId, Int_t manuId,
02ab99ac	296	Int_t manuChannel, Int_t cathode, Int_t& index) const
4d3f0fd0	297	{
02ab99ac	298	/// Find and return the index of a digit
4d3f0fd0	299
4d3f0fd0	300	Int_t iChamber = AliMpDEManager::GetChamberId(detElemId);
	301	const TClonesArray* array = ChamberDigits(iChamber);
	302	if (!array) return 0x0;
	303	TIter next(array);
	304	AliMUONVDigit* digit;
	305	index=0;
	306	while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
	307	{
	308	if ( digit->DetElemId() == detElemId &&
02ab99ac	309	digit->ManuId() == manuId &&
02ab99ac	310	digit->ManuChannel() == manuChannel &&
4d3f0fd0	311	digit->Cathode() == cathode )
	312	{
	313	return digit;
	314	}
	315	++index;
	316	}
	317	return 0x0;
	318
	319	}
	320
4d3f0fd0	321	//_____________________________________________________________________________
	322	TIterator*
	323	AliMUONDigitStoreV1::CreateIterator() const
	324	{
	325	/// Return an iterator on the full store
	326	return new AliMUONTOTCAStoreIterator(fDigits,0,13);
	327	}
	328
	329	//_____________________________________________________________________________
	330	TIterator*
	331	AliMUONDigitStoreV1::CreateTrackerIterator() const
	332	{
	333	/// Return an iterator on the tracker part of the store
	334	return new AliMUONTOTCAStoreIterator(fDigits,0,9);
	335	}
	336
	337	//_____________________________________________________________________________
	338	TIterator*
	339	AliMUONDigitStoreV1::CreateTriggerIterator() const
	340	{
	341	/// Return an iterator on the trigger part of the store
	342	return new AliMUONTOTCAStoreIterator(fDigits,10,13);
	343	}
	344
	345	//_____________________________________________________________________________
	346	TIterator*
	347	AliMUONDigitStoreV1::CreateIterator(Int_t firstDetElemId, Int_t lastDetElemId,
	348	Int_t cathode) const
	349	{
	350	/// Return an iterator on part of the store
	351	return new AliMUONDigitStoreV1Iterator(fDigits,firstDetElemId,lastDetElemId,cathode);
	352	}
	353
	354	//_____________________________________________________________________________
	355	Int_t
	356	AliMUONDigitStoreV1::GetSize() const
	357	{
	358	/// Return the number of digits we store
	359	Int_t n(0);
	360
	361	for ( Int_t i = 0; i <= fDigits->GetLast(); ++i )
	362	{
	363	n += ChamberDigits(i)->GetEntries();
	364	}
	365	return n;
	366	}
91b67b6f	367
	368	//_____________________________________________________________________________
	369	Bool_t
	370	AliMUONDigitStoreV1::HasMCInformation() const
	371	{
	372	/// As this class is legacy, don't care about looping and loosing a bit of
	373	/// time...
	374	TIter next(CreateIterator());
	375	AliMUONVDigit* digit;
	376	while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
	377	{
	378	if ( digit->HasMCInformation() ) return kTRUE;
	379	}
	380	return kFALSE;
	381	}
	382