1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.betwixt.strategy.impl;
18
19 import java.util.ArrayList;
20 import java.util.Collection;
21
22 import org.apache.commons.betwixt.strategy.CollectiveTypeStrategy;
23
24 /**
25 * Strategy that allows specific classes to be marked as
26 * collective ({@link #overrideCollective(Class)})
27 * or not collective ({@link #overrideNotCollective(Class)}).
28 * @since 0.8
29 */
30 public class OverrideCollectiveTypeStategy extends CollectiveTypeStrategy {
31
32 private final CollectiveTypeStrategy delegate;
33
34 private final Collection collectiveClasses;
35 private final Collection notCollectiveClasses;
36
37 /**
38 * Constructs a strategy which delegates to CollectiveTypeStrategy#DEFAULT
39 *
40 */
41 public OverrideCollectiveTypeStategy() {
42 this(CollectiveTypeStrategy.DEFAULT);
43 }
44
45 /**
46 * Constructs a strategy which delegates all those that it does not override.
47 * @param delegate
48 */
49 public OverrideCollectiveTypeStategy(CollectiveTypeStrategy delegate) {
50 super();
51 this.delegate = delegate;
52 collectiveClasses = new ArrayList();
53 notCollectiveClasses = new ArrayList();
54 }
55
56 /**
57 * Marks the given type to be treated as collective.
58 * @param type <code>Class</code>, not null
59 */
60 public void overrideCollective(Class type) {
61 collectiveClasses.add(type);
62 }
63
64 /**
65 * Marks the given type to be treated as not collective
66 * @param type
67 */
68 public void overrideNotCollective(Class type) {
69 notCollectiveClasses.add(type);
70 }
71
72 /**
73 * @see CollectiveTypeStrategy#isCollective(Class)
74 */
75 public boolean isCollective(Class type) {
76 boolean result = delegate.isCollective(type);
77 if (collectiveClasses.contains(type)) {
78 result = true;
79 } else if (notCollectiveClasses.contains(type)) {
80 result = false;
81 }
82 return result;
83 }
84
85 }