Add some class-docs.

[u/mrichter/AliRoot.git] / MUON / AliMUON2DMapIterator.cxx

diff --git a/MUON/AliMUON2DMapIterator.cxx b/MUON/AliMUON2DMapIterator.cxx
index fb282bca16e93b83377d2f562b4b78bdb6a22002..b6b3fc333df4f0d1482c7299b4edf11fdc4feef9 100644 (file)
--- a/MUON/AliMUON2DMapIterator.cxx
+++ b/MUON/AliMUON2DMapIterator.cxx
@@ -16,121 +16,140 @@
 // $Id$
 
 #include "AliMUON2DMapIterator.h"
-#include "AliMpExMap.h"
-#include "TMap.h"
-#include "AliLog.h"
-#include "AliMpIntPair.h"
-#include "AliMUONObjectPair.h"
 
+//-----------------------------------------------------------------------------
 /// \class AliMUON2DMapIterator
-/// Implementation of AliMUONVDataIterator for 2Dmaps
+/// Implementation of TIterator for 2Dmaps
 /// 
 /// A simple implementation of VDataIterator for 2Dmaps.
 ///
 /// \author Laurent Aphecetche
+//-----------------------------------------------------------------------------
+
+#include "AliMpExMap.h"
 
 /// \cond CLASSIMP
 ClassImp(AliMUON2DMapIterator)
 /// \endcond
 
 //_____________________________________________________________________________
-AliMUON2DMapIterator::AliMUON2DMapIterator(AliMpExMap& theMap)
-: AliMUONVDataIterator(), 
-fIter(theMap.GetIterator()),
-fIter2(0x0),
-fCurrentI(-1),
-fCurrentJ(-1)
+AliMUON2DMapIterator::AliMUON2DMapIterator(AliMpExMap* theMap)
+: TIterator(), 
+fMap(theMap),
+fCurrentMap(0x0),
+fI(-1),
+fJ(-1)
 {
-  // default ctor
+  /// default ctor
   Reset();
 }
 
 //_____________________________________________________________________________
-AliMUON2DMapIterator::~AliMUON2DMapIterator()
+AliMUON2DMapIterator::AliMUON2DMapIterator(const AliMUON2DMapIterator& rhs)
+: TIterator(rhs),
+fMap(rhs.fMap),
+fCurrentMap(rhs.fCurrentMap),
+fI(rhs.fI),
+fJ(rhs.fI)
 {
-  // dtor
-  delete fIter2;
+  /// copy ctor
 }
 
 //_____________________________________________________________________________
-TObject*
-AliMUON2DMapIterator::GetValue(TExMapIter& iter, Int_t& theKey) const
+AliMUON2DMapIterator& 
+AliMUON2DMapIterator::operator=(const AliMUON2DMapIterator& rhs)
 {
-  // return the value corresponding to theKey in iterator iter
-  theKey = -1;
-  Long_t key, value;
-  Bool_t ok = iter.Next(key,value);
-  if (!ok) return 0x0;
-  theKey = (Int_t)(key & 0xFFFF);
-  return reinterpret_cast<TObject*>(value);
+  /// assignment operator
+  if ( this != &rhs ) 
+  {
+    fMap = rhs.fMap;
+    fCurrentMap = rhs.fCurrentMap;
+    fI = rhs.fI;
+    fJ = rhs.fJ;
+  }
+  return *this;
 }
 
 //_____________________________________________________________________________
-AliMpExMap*
-AliMUON2DMapIterator::GetMap(TExMapIter& iter, Int_t& key) 
+TIterator& 
+AliMUON2DMapIterator::operator=(const TIterator& rhs)
 {
-  // get the map corresponding to key
-  AliMpExMap* rv(0x0);
-  TObject* o = GetValue(iter,key);
-  if (o)
+  /// overriden operator= (imposed by Root's definition of TIterator::operator= ?)
+  
+  if ( this != &rhs && rhs.IsA() == AliMUON2DMapIterator::Class() ) 
   {
-    rv = dynamic_cast<AliMpExMap*>(o);
-    if (!rv)
-    {
-      AliFatal("boom");
-    }
+    const AliMUON2DMapIterator& rhs1 = static_cast<const AliMUON2DMapIterator&>(rhs);
+    fMap = rhs1.fMap;
+    fCurrentMap = rhs1.fCurrentMap;
+    fI = rhs1.fI;
+    fJ = rhs1.fJ;
   }
-  return rv;
+  return *this;
+}
+
+//_____________________________________________________________________________
+AliMUON2DMapIterator::~AliMUON2DMapIterator()
+{
+  /// dtor
+}
+
+//_____________________________________________________________________________
+const TCollection* 
+AliMUON2DMapIterator::GetCollection() const
+{
+  /// Return 0 as we're not really dealing with a Root TCollection...
+  return 0x0;
+}
+
+//_____________________________________________________________________________
+AliMpExMap*
+AliMUON2DMapIterator::Map(Int_t i) const
+{
+  /// Get the map at a given index
+  return static_cast<AliMpExMap*>(fMap->GetObjectFast(i));
 }
 
 //_____________________________________________________________________________
 TObject*
 AliMUON2DMapIterator::Next()
 {
-  // logic :
-  // get TObject* from fIter2
-  // if null, increment fIter2 by getting next on fIter
+  /// return next object
+  
+  if (!fCurrentMap) return 0x0;
   
-  if (!fIter2) return 0x0;
+  ++fJ;
   
-  TObject* o = GetValue(*fIter2,fCurrentJ);
-  if (!o)
+  if ( fJ < fCurrentMap->GetSize() ) 
   {
-    // fIter2 exhausted, try to get the next one
-    AliMpExMap* m = GetMap(fIter,fCurrentI);
-    if (!m)
+    return fCurrentMap->GetObjectFast(fJ);
+  }
+  else
+  {
+    ++fI;
+    if ( fI < fMap->GetSize() )
     {
-      // nothing left, we are done.
-      return 0x0;
+      fCurrentMap = Map(fI);
+      fJ = -1;
+      return Next();
     }
-    delete fIter2;
-    fIter2 = new TExMapIter(m->GetIterator());
-    o = GetValue(*fIter2,fCurrentJ);
-  }  
-  return new AliMUONObjectPair(new AliMpIntPair(fCurrentI,fCurrentJ),o,
-                               kTRUE, /* owner of intpair */
-                               kFALSE /* but not of o */);
+    return 0x0;
+  }
 }
 
 //_____________________________________________________________________________
 void
 AliMUON2DMapIterator::Reset()
 {
-  // rewind the iterator
-  delete fIter2;
-  fIter.Reset();
-  AliMpExMap* m = GetMap(fIter,fCurrentI);
-  if (m)
+  /// rewind the iterator
+  fI = -1;
+  fJ = -1;
+  fCurrentMap = 0x0;
+  
+  if ( fMap->GetSize() > 0 )
   {
-    fIter2 = new TExMapIter(m->GetIterator());
-  }  
+    fI = 0;
+    fCurrentMap = Map(fI);
+    fJ = -1;
+  }
 }
 
-//_____________________________________________________________________________
-Bool_t
-AliMUON2DMapIterator::Remove()
-{
-  // to be implemented if needed
-  AliInfo("Not supported yet");
-  return kFALSE;
-}