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/*
 * Copyright (c) 2007, Red Hat Middleware, LLC. All rights reserved.
 *
 * 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, v. 2.1. This program is distributed in the
 * hope that it will be useful, but WITHOUT A 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, v.2.1 along with this
 * distribution; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Red Hat Author(s): Steve Ebersole
 */
package org.hibernate.hql.ast.tree;

import org.hibernate.hql.antlr.HqlSqlTokenTypes;

/**
 * Represents a 'is null' check. 
 *
 * @author Steve Ebersole
 */
public class IsNullLogicOperatorNode extends AbstractNullnessCheckNode {
	protected int getExpansionConnectorType() {
		return HqlSqlTokenTypes.AND;
	}

	protected String getExpansionConnectorText() {
		return "AND";
	}
}