/*
* 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 antlr.SemanticException;
import antlr.collections.AST;
import org.hibernate.type.Type;
/**
* @author Steve Ebersole
*/
public class InLogicOperatorNode extends BinaryLogicOperatorNode implements BinaryOperatorNode {
public Node getInList() {
return getRightHandOperand();
}
public void initialize() throws SemanticException {
Node lhs = getLeftHandOperand();
if ( lhs == null ) {
throw new SemanticException( "left-hand operand of in operator was null" );
}
Node inList = getInList();
if ( inList == null ) {
throw new SemanticException( "right-hand operand of in operator was null" );
}
// for expected parameter type injection, we expect that the lhs represents
// some form of property ref and that the children of the in-list represent
// one-or-more params.
if ( SqlNode.class.isAssignableFrom( lhs.getClass() ) ) {
Type lhsType = ( ( SqlNode ) lhs ).getDataType();
AST inListChild = inList.getFirstChild();
while ( inListChild != null ) {
if ( ExpectedTypeAwareNode.class.isAssignableFrom( inListChild.getClass() ) ) {
( ( ExpectedTypeAwareNode ) inListChild ).setExpectedType( lhsType );
}
inListChild = inListChild.getNextSibling();
}
}
}
}