View Javadoc

1   /*
2    * Copyright 2007-2008 Naoki NOSE.
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  package jp.liq.container.reflect;
17  
18  import java.lang.reflect.Method;
19  import java.util.Iterator;
20  
21  import jp.liq.container.util.ArrayIterator;
22  import jp.liq.container.util.IteratorWrapper;
23  
24  /**
25   * あるオブジェクトが保持するメソッドの中から、
26   * 指定された条件にマッチするものを順に返す、Iterable の実装です。
27   * @author nosen
28   *
29   */
30  public class ObjectMethodFinder extends MemberFinder<ObjectMethod, ObjectMethodFinder> 
31      implements Iterable<ObjectMethod> {
32      
33      private final Object target;
34  
35      /**
36       * このクラスのインスタンスを構築します。
37       * @param target 対象オブジェクト 
38       */
39      public ObjectMethodFinder(Object target) {
40          this.target = target;
41  
42      }
43  
44      /**
45       * @see jp.liq.container.reflect.MemberFinder#getThis()
46       */
47      @Override
48      protected ObjectMethodFinder getThis() {
49          return this;
50      }
51  
52      @Override
53      protected Iterator<ObjectMethod> getCandidates() {
54          return new ObjectMethodIterator(
55                  new ArrayIterator<Method>(target.getClass().getMethods()));
56      }
57  
58      private class ObjectMethodIterator extends IteratorWrapper<ObjectMethod, Method> {
59          public ObjectMethodIterator(Iterator<Method> iterator) {
60              super(iterator);
61          }
62  
63          public ObjectMethod next() {
64              return new ObjectMethod(iterator.next(), target);
65          }
66      }
67  }