ObjectID.h

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#ifndef PODIO_OBJECTID_H
#define PODIO_OBJECTID_H
 
namespace podio {
 
class ObjectID {
 
public:
  /// index of object in collection
  int index;
  /// ID of the collection
  int collectionID;
 
  /// not part of a collection
  static const int untracked = -1;
  /// invalid or non-available object
  static const int invalid = -2;
 
  /// index and collectionID uniquely defines the object.
  /// this operator is necessary for meaningful comparisons in python
  bool operator==(const ObjectID& other) const {
    return index == other.index && collectionID == other.collectionID;
  }
};
 
} // namespace podio
 
#endif