/*
* 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 org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.dialect.MySQLDialect;
import org.hibernate.engine.spi.TypedValue;
/**
* Negates another criterion
* @author Gavin King
*/
public class NotExpression implements Criterion {
private Criterion criterion;
protected NotExpression(Criterion criterion) {
this.criterion = criterion;
}
public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
if ( criteriaQuery.getFactory().getDialect() instanceof MySQLDialect ) {
return "not (" + criterion.toSqlString(criteria, criteriaQuery) + ')';
}
else {
return "not " + criterion.toSqlString(criteria, criteriaQuery);
}
}
public TypedValue[] getTypedValues(
Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
return criterion.getTypedValues(criteria, criteriaQuery);
}
public String toString() {
return "not " + criterion.toString();
}
}