//
// Copyright (C) 2002-2004 Red Hat Inc. All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation; either version 2.1 of
// the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// $Id: SelfReference.pdl 287 2005-02-22 00:29:02Z sskracic $
// $DateTime: 2004/08/16 18:10:38 $
model oql;

object type Object {
    BigInteger[1..1] id = objects.id INTEGER;
    String [1..1] type = objects.type VARCHAR(200);

    object key (id);
}

object type SelfReference extends Object {
    String[1..1] name = query_tests.name VARCHAR(200);
    BigDecimal[0..1] parent_id = query_tests.parent_id INTEGER;
    SelfReference[0..1] parent = join query_tests.parent_id to query_tests.id;

    reference key (query_tests.id);

    aggressive load (parent.id, parent.name, parent.type);
}

// this helps the ddl generator and is not needed for anything else
object type SelfReferenceHelper {
    BigDecimal id = it.ic INTEGER;
    object key (id);
}