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Hibernate's core ORM functionality
/*
* 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 .
*/
package org.hibernate.criterion;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.type.Type;
/**
* A property value, or grouped property value
*
* @author Gavin King
* @author Steve Ebersole
*/
public class PropertyProjection extends SimpleProjection {
private String propertyName;
private boolean grouped;
protected PropertyProjection(String prop, boolean grouped) {
this.propertyName = prop;
this.grouped = grouped;
}
protected PropertyProjection(String prop) {
this( prop, false );
}
@Override
public boolean isGrouped() {
return grouped;
}
public String getPropertyName() {
return propertyName;
}
@Override
public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
return new Type[] { criteriaQuery.getType( criteria, propertyName ) };
}
@Override
public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery) throws HibernateException {
final StringBuilder buf = new StringBuilder();
final String[] cols = criteriaQuery.getColumns( propertyName, criteria );
for ( int i=0; i