Added CloneEmpty method (Laurent)

diff --git a/MUON/AliMUONV2DStore.h b/MUON/AliMUONV2DStore.h
index 61c7fda9ad9240ec1cb36a5b65fe143cbaee12c5..1fb3b575dbdae92834dbfcefa3d21706e8ed9d66 100644 (file)
--- a/MUON/AliMUONV2DStore.h
+++ b/MUON/AliMUONV2DStore.h
@@ -24,6 +24,9 @@ public:
   AliMUONV2DStore();
   virtual ~AliMUONV2DStore();
   
+  /// Return an empty copy of self.
+  virtual AliMUONV2DStore* CloneEmpty() const { return 0x0; }
+  
   virtual AliMUONVDataIterator* Iterator() const { return 0x0; }
   
   /// Return the object stored at (i,j).