public CollectionElementLoader(QueryableCollection collectionPersister,
    SessionFactoryImplementor factory,
    Map enabledFilters) throws MappingException 
{
	 
		super(factory, enabledFilters);
		this.keyType = collectionPersister.getKeyType();
		this.indexType = collectionPersister.getIndexType();
		this.persister = (OuterJoinLoadable) collectionPersister.getElementPersister();
		this.entityName = persister.getEntityName();
		JoinWalker walker = new EntityJoinWalker(
				persister, 
				ArrayHelper.join( 
						collectionPersister.getKeyColumnNames(), 
						collectionPersister.getIndexColumnNames()
					),
				1, 
				LockMode.NONE, 
				factory, 
				enabledFilters
			);
		initFromWalker( walker );
		postInstantiate();
		log.debug( "Static select for entity " + entityName + ": " + getSQLString() );
}

 protected Object getResultColumnOrRow(Object[] row,
    ResultTransformer transformer,
    ResultSet rs,
    SessionImplementor session) throws HibernateException, SQLException 
{
		return row[row.length-1];
}

 protected boolean isSingleRowLoader() 
{
		return true;
}

 public Object loadElement(SessionImplementor session,
    Object key,
    Object index) throws HibernateException 
{
		
		List list = loadEntity(
				session, 
				key,
				index,
				keyType, 
				indexType,
				persister
			);
		if ( list.size()==1 ) {
			return list.get(0);
		}
		else if ( list.size()==0 ) {
			return null;
		}
		else {
			if ( getCollectionOwners()!=null ) {
				return list.get(0);
			}
			else {
				throw new HibernateException("More than one row was found");
			}
		}
}