/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. 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 Inc.
*
* 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.ArrayList;
import org.hibernate.Criteria;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.TypedValue;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.type.CompositeType;
import org.hibernate.type.Type;
/**
* Constrains the property to a specified list of values
* @author Gavin King
*/
public class InExpression implements Criterion {
private final String propertyName;
private final Object[] values;
protected InExpression(String propertyName, Object[] values) {
this.propertyName = propertyName;
this.values = values;
}
public String toSqlString( Criteria criteria, CriteriaQuery criteriaQuery )
throws HibernateException {
String[] columns = criteriaQuery.findColumns(propertyName, criteria);
if ( criteriaQuery.getFactory().getDialect()
.supportsRowValueConstructorSyntaxInInList() || columns.length<=1) {
String singleValueParam = StringHelper.repeat( "?, ",
columns.length - 1 )
+ "?";
if ( columns.length > 1 )
singleValueParam = '(' + singleValueParam + ')';
String params = values.length > 0 ? StringHelper.repeat(
singleValueParam + ", ", values.length - 1 )
+ singleValueParam : "";
String cols = StringHelper.join( ", ", columns );
if ( columns.length > 1 )
cols = '(' + cols + ')';
return cols + " in (" + params + ')';
} else {
String cols = " ( " + StringHelper.join( " = ? and ", columns ) + "= ? ) ";
cols = values.length > 0 ? StringHelper.repeat( cols
+ "or ", values.length - 1 )
+ cols : "";
cols = " ( " + cols + " ) ";
return cols;
}
}
public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
ArrayList list = new ArrayList();
Type type = criteriaQuery.getTypeUsingProjection(criteria, propertyName);
if ( type.isComponentType() ) {
CompositeType actype = (CompositeType) type;
Type[] types = actype.getSubtypes();
for ( int j=0; j<values.length; j++ ) {
for ( int i=0; i<types.length; i++ ) {
Object subval = values[j]==null ?
null :
actype.getPropertyValues( values[j], EntityMode.POJO )[i];
list.add( new TypedValue( types[i], subval, EntityMode.POJO ) );
}
}
}
else {
for ( int j=0; j<values.length; j++ ) {
list.add( new TypedValue( type, values[j], EntityMode.POJO ) );
}
}
return (TypedValue[]) list.toArray( new TypedValue[ list.size() ] );
}
public String toString() {
return propertyName + " in (" + StringHelper.toString(values) + ')';
}
}