1 /*
2 * Copyright 2002-2009 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.json.processors;
18
19 import java.util.Set;
20
21 /**
22 * Base class for finding a matching DefaultValueProcessor.<br>
23 * <ul>
24 * <li>DEFAULT - matches the target class with equals().</li>
25 * </ul>
26 *
27 * @author Andres Almiray <aalmiray@users.sourceforge.net>
28 */
29 public abstract class DefaultValueProcessorMatcher {
30 /** Matches the target with equals() */
31 public static final DefaultValueProcessorMatcher DEFAULT = new DefaultDefaultValueProcessorMatcher();
32
33 /**
34 * Returns the matching class calculated with the target class and the
35 * provided set.
36 *
37 * @param target the target class to match
38 * @param set a set of possible matches
39 */
40 public abstract Object getMatch( Class target, Set set );
41
42 private static final class DefaultDefaultValueProcessorMatcher extends
43 DefaultValueProcessorMatcher {
44 public Object getMatch( Class target, Set set ) {
45 if( target != null && set != null && set.contains( target ) ){
46 return target;
47 }
48 return null;
49 }
50 }
51 }