AthToolSupport/AsgDataHandles/AsgDataHandles/ReadHandleKey.icc

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
/**
 * @file AsgDataHandles/ReadHandleKey.icc
 * @author Nils Krumnack <Nils.Erik.Krumnack@cern.h>
 * @author scott snyder <snyder@bnl.gov> (for original version)
 * @brief Property holding a SG store/key/clid from which a ReadHandle is made.
 */
 
 
namespace SG {
 
 
/**
 * @brief Constructor.
 * @param key The StoreGate key for the object.
 * @param storeName Name to use for the store, if it's not encoded in sgkey.
 *
 * The provided key may actually start with the name of the store,
 * separated by a "+":  "MyStore+Obj".  If no "+" is present
 * the store named by @c storeName is used.
 */
template <class T>
ReadHandleKey<T>::ReadHandleKey (const std::string& key)
  : VarHandleKey (key)
  // : VarHandleKey (ClassID_traits<T>::ID(), key,
  //                 Gaudi::DataHandle::Reader,
  //                 storeName)
{
}
 
 
/**
 * @brief Auto-declaring Property constructor.
 * @param owner Owning component.
 * @param name Name of the Property.
 * @param key  Default StoreGate key for the object.
 * @param doc Documentation string.
 *
 * Will associate the named Property with this RHK via declareProperty.
 *
 * The provided key may actually start with the name of the store,
 * separated by a "+":  "MyStore+Obj".  If no "+" is present
 * the store named by @c storeName is used.
 */
template <class T>
template <class OWNER, class K>
inline
ReadHandleKey<T>::ReadHandleKey( OWNER* owner,
                                 const std::string& name,
                                 const K& key /* ={}*/,
                                 const std::string& doc /*= ""*/)
  : ReadHandleKey<T>( key )
{
  owner->declareProperty(name, *this, doc);
}
 
 
/**
 * @brief Change the key of the object to which we're referring.
 * @param sgkey The StoreGate key for the object.
 * 
 * The provided key may actually start with the name of the store,
 * separated by a "+":  "MyStore+Obj".  If no "+" is present,
 * the store is not changed.
 */
template <class T>
ReadHandleKey<T>& ReadHandleKey<T>::operator= (const std::string& sgkey)
{
  VarHandleKey::operator= (sgkey);
  return *this;
}
 
 
} // namespace SG