org.hibernate.hql.internal.ast.tree.MapValueNode Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2009, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.hql.internal.ast.tree;
import org.hibernate.persister.collection.QueryableCollection;
import org.hibernate.type.Type;
/**
* Tree node representing reference to the value of a Map association.
*
* @author Steve Ebersole
*/
public class MapValueNode extends AbstractMapComponentNode {
@Override
protected String expressionDescription() {
return "value(*)";
}
@Override
protected String[] resolveColumns(QueryableCollection collectionPersister) {
final FromElement fromElement = getFromElement();
return fromElement.toColumns(
fromElement.getCollectionTableAlias(),
"elements", // the JPA VALUE "qualifier" is the same concept as the HQL ELEMENTS function/property
getWalker().isInSelect()
);
}
@Override
protected Type resolveType(QueryableCollection collectionPersister) {
return collectionPersister.getElementType();
}
}