001    /*
002    // $Id: NullType.java 229 2009-05-08 19:11:29Z jhyde $
003    // This software is subject to the terms of the Eclipse Public License v1.0
004    // Agreement, available at the following URL:
005    // http://www.eclipse.org/legal/epl-v10.html.
006    // Copyright (C) 2005-2008 Julian Hyde
007    // All Rights Reserved.
008    // You must accept the terms of that agreement to use this software.
009    */
010    package org.olap4j.type;
011    
012    /**
013     * The type of a null expression.
014     *
015     * @author medstat
016     * @version $Id: NullType.java 229 2009-05-08 19:11:29Z jhyde $
017     * @since Aug 21, 2006
018     */
019    public class NullType extends ScalarType
020    {
021        /**
022         * Creates a null type.
023         */
024        public NullType() {
025        }
026    
027        public String toString() {
028            return "NULL";
029        }
030    }
031    // End NullType.java