/*
* Copyright 2004 Outerthought bvba and Schaubroeck nv
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.outerj.daisy.query.model;
/**
* Defines three states: yes, no, maybe.
*
* <p>Some people call this a troolean (after its inventor George Troole? :-) ).
*/
public class Tristate {
private final String name;
private Tristate(String name) {
this.name = name;
}
public String toString() {
return name;
}
public static Tristate YES = new Tristate("yes");
public static Tristate NO = new Tristate("no");
public static Tristate MAYBE = new Tristate("maybe");
}
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