org.hibernate.criterion.IdentifierProjection Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, 2013, 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.criterion;
import org.hibernate.Criteria;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.type.Type;
/**
* A property value, or grouped property value
*
* @author Gavin King
*/
public class IdentifierProjection extends SimpleProjection {
private boolean grouped;
/**
* Constructs a non-grouped identifier projection
*
* @see Projections#id
*/
protected IdentifierProjection() {
this( false );
}
/**
*
* Not used externally
*/
private IdentifierProjection(boolean grouped) {
this.grouped = grouped;
}
@Override
public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery) {
return new Type[] { criteriaQuery.getIdentifierType( criteria ) };
}
@Override
public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery) {
final StringBuilder buf = new StringBuilder();
final String[] cols = criteriaQuery.getIdentifierColumns( criteria );
for ( int i=0; i