/*
* 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.envers.query.criteria;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.envers.configuration.spi.AuditConfiguration;
import org.hibernate.envers.internal.reader.AuditReaderImplementor;
import org.hibernate.envers.internal.tools.query.Parameters;
import org.hibernate.envers.internal.tools.query.QueryBuilder;
/**
* @author Adam Warski (adam at warski dot org)
*/
public class AuditDisjunction implements AuditCriterion, ExtendableCriterion {
private List<AuditCriterion> criterions;
public AuditDisjunction() {
criterions = new ArrayList<AuditCriterion>();
}
@Override
public AuditDisjunction add(AuditCriterion criterion) {
criterions.add( criterion );
return this;
}
@Override
public void addToQuery(
AuditConfiguration verCfg, AuditReaderImplementor versionsReader, String entityName,
QueryBuilder qb, Parameters parameters) {
Parameters orParameters = parameters.addSubParameters( Parameters.OR );
if ( criterions.size() == 0 ) {
orParameters.addWhere( "0", false, "=", "1", false );
}
else {
for ( AuditCriterion criterion : criterions ) {
criterion.addToQuery( verCfg, versionsReader, entityName, qb, orParameters );
}
}
}
}