1 #ifndef GAUDI_OBJECTCONTAINERBASE_H     2 #define GAUDI_OBJECTCONTAINERBASE_H 1    39   virtual size_type numberOfObjects() 
const = 0;
    52 #endif // GAUDI_OBJECTCONTAINERBASE_H 
size_t size_type
size_type, to conform the STL container interface 
All classes that their objects may be contained in an LHCb ObjectContainer (e.g. 
DataObject & operator=(const DataObject &rhs)
Assignment Operator. 
ObjectContainerBase is the base class for Gaudi container classes. 
A DataObject is the base class of any identifiable object on any data store.