001/*
002// $Id: NullType.java 482 2012-01-05 23:27:27Z jhyde $
003//
004// Licensed to Julian Hyde under one or more contributor license
005// agreements. See the NOTICE file distributed with this work for
006// additional information regarding copyright ownership.
007//
008// Julian Hyde licenses this file to you under the Apache License,
009// Version 2.0 (the "License"); you may not use this file except in
010// compliance with the License. You may obtain a copy of the License at:
011//
012// http://www.apache.org/licenses/LICENSE-2.0
013//
014// Unless required by applicable law or agreed to in writing, software
015// distributed under the License is distributed on an "AS IS" BASIS,
016// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017// See the License for the specific language governing permissions and
018// limitations under the License.
019*/
020package org.olap4j.type;
021
022/**
023 * The type of a null expression.
024 *
025 * @author medstat
026 * @version $Id: NullType.java 482 2012-01-05 23:27:27Z jhyde $
027 * @since Aug 21, 2006
028 */
029public class NullType extends ScalarType
030{
031    /**
032     * Creates a null type.
033     */
034    public NullType() {
035    }
036
037    public String toString() {
038        return "NULL";
039    }
040}
041// End NullType.java