/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.loader.collection;
import org.hibernate.engine.spi.LoadQueryInfluencers;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.loader.JoinWalker;
/**
* Superclass of walkers for collection initializers
*
* @see CollectionLoader
* @see OneToManyJoinWalker
* @see BasicCollectionJoinWalker
* @author Gavin King
*/
public abstract class CollectionJoinWalker extends JoinWalker {
public CollectionJoinWalker(SessionFactoryImplementor factory, LoadQueryInfluencers loadQueryInfluencers) {
super( factory, loadQueryInfluencers );
}
protected StringBuilder whereString(String alias, String[] columnNames, String subselect, int batchSize) {
if (subselect==null) {
return whereString(alias, columnNames, batchSize);
}
else {
StringBuilder buf = new StringBuilder();
if (columnNames.length>1) {
buf.append('(');
}
buf.append( StringHelper.join(", ", StringHelper.qualify(alias, columnNames) ) );
if (columnNames.length>1) {
buf.append(')');
}
buf.append(" in ")
.append('(')
.append(subselect)
.append(')');
return buf;
}
}
}