Source code: org/objectstyle/ashwood/predicate/ConstPredicate.java
1 /* ====================================================================
2 *
3 * Copyright(c) 2003, Andriy Shapochka
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials
17 * provided with the distribution.
18 *
19 * 3. Neither the name of the ASHWOOD nor the
20 * names of its contributors may be used to endorse or
21 * promote products derived from this software without
22 * specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * ====================================================================
36 *
37 * This software consists of voluntary contributions made by
38 * individuals on behalf of the ASHWOOD Project and was originally
39 * created by Andriy Shapochka.
40 *
41 */
42
43 package org.objectstyle.ashwood.predicate;
44
45 import org.apache.commons.collections.Predicate;
46
47 public class ConstPredicate implements Predicate {
48 public static ConstPredicate TRUE = new ConstPredicate(true);
49 public static ConstPredicate FALSE = new ConstPredicate(false);
50
51 private boolean returnValue;
52
53 public ConstPredicate(boolean returnValue) {
54 this.returnValue = returnValue;
55 }
56
57 public boolean evaluate(Object parameter) {
58 return returnValue;
59 }
60 }