/*
* 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.internal.ast.tree;
import org.hibernate.hql.internal.ast.util.ColumnHelper;
import org.hibernate.type.Type;
import antlr.SemanticException;
/**
* Represents a case ... when .. then ... else ... end expression in a select.
*
* @author Gavin King
*/
public class CaseNode extends AbstractSelectExpression implements SelectExpression {
public Type getDataType() {
return getFirstThenNode().getDataType();
}
private SelectExpression getFirstThenNode() {
return (SelectExpression) getFirstChild().getFirstChild().getNextSibling();
}
public void setScalarColumnText(int i) throws SemanticException {
ColumnHelper.generateSingleScalarColumn( this, i );
}
}