001/*
002// This software is subject to the terms of the Eclipse Public License v1.0
003// Agreement, available at the following URL:
004// http://www.eclipse.org/legal/epl-v10.html.
005// You must accept the terms of that agreement to use this software.
006//
007// Copyright (C) 2005-2005 Julian Hyde
008// Copyright (C) 2005-2009 Pentaho
009// All Rights Reserved.
010*/
011package mondrian.olap.type;
012
013/**
014 * The type of a null expression.
015 *
016 * @author medstat
017 * @since Aug 21, 2006
018 */
019public class NullType extends ScalarType
020{
021    /**
022     * Creates a null type.
023     */
024    public NullType()
025    {
026        super("<NULLTYPE>");
027    }
028
029    public boolean equals(Object obj) {
030        return obj instanceof NullType;
031    }
032}
033
034// End NullType.java