/*
* 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.hql.ast.tree;
import org.hibernate.Hibernate;
import org.hibernate.QueryException;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.type.BooleanType;
import org.hibernate.type.Type;
/**
* Represents a boolean literal within a query.
*
* @author Steve Ebersole
*/
public class BooleanLiteralNode extends LiteralNode implements ExpectedTypeAwareNode {
private Type expectedType;
public Type getDataType() {
return expectedType == null ? Hibernate.BOOLEAN : expectedType;
}
public BooleanType getTypeInternal() {
return ( BooleanType ) getDataType();
}
public Boolean getValue() {
return getType() == TRUE ? Boolean.TRUE : Boolean.FALSE;
}
/**
* Expected-types really only pertinent here for boolean literals...
*
* @param expectedType
*/
public void setExpectedType(Type expectedType) {
this.expectedType = expectedType;
}
public Type getExpectedType() {
return expectedType;
}
public String getRenderText(SessionFactoryImplementor sessionFactory) {
try {
return getTypeInternal().objectToSQLString( getValue(), sessionFactory.getDialect() );
}
catch( Throwable t ) {
throw new QueryException( "Unable to render boolean literal value", t );
}
}
}