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Java > Open Source Codes > org > apache > slide > projector > expression > TrueExpression


1 /*
2  * $Header: /home/cvs/jakarta-slide/projector/src/java/org/apache/slide/projector/expression/TrueExpression.java,v 1.3 2004/07/28 09:48:21 ib Exp $
3  * $Revision: 1.3 $
4  * $Date: 2004/07/28 09:48:21 $
5  *
6  * ====================================================================
7  *
8  * Copyright 1999-2002 The Apache Software Foundation
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License");
11  * you may not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS,
18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  *
22  */
23
24 package org.apache.slide.projector.expression;
25
26 import org.apache.slide.projector.engine.Job;
27
28 import de.zeigermann.xml.XMLStringWriter;
29 import de.zeigermann.xml.XMLWriter;
30
31 /**
32  * The TrueExpression class
33  *
34  */
35 public class TrueExpression implements Expression {
36     public Expression activate(Job job) {
37         return this;
38     }
39     
40     public boolean evaluate() {
41         return true;
42     }
43
44     public void save(XMLStringWriter writer) {
45         writer.writeEmptyElement(XMLWriter.createEmptyTag("true"));
46     }
47 }
48
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