org.hibernate.criterion.SimpleProjection Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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 java.util.Iterator;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.type.Type;
/**
* A single-column projection that may be aliased
* @author Gavin King
*/
public abstract class SimpleProjection implements EnhancedProjection {
public Projection as(String alias) {
return Projections.alias(this, alias);
}
public String[] getColumnAliases(String alias, int loc) {
return null;
}
public String[] getColumnAliases(String alias, int loc, Criteria criteria, CriteriaQuery criteriaQuery) {
return getColumnAliases( alias, loc );
}
public Type[] getTypes(String alias, Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
return null;
}
public String[] getColumnAliases(int loc) {
return new String[] { "y" + loc + "_" };
}
public int getColumnCount(Criteria criteria, CriteriaQuery criteriaQuery) {
Type types[] = getTypes( criteria, criteriaQuery );
int count = 0;
for ( int i=0; i