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1   /**
2    *    Copyright 2009-2015 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  package org.apache.ibatis.plugin;
17  
18  import java.util.ArrayList;
19  import java.util.Collections;
20  import java.util.List;
21  
22  /**
23   * @author Clinton Begin
24   */
25  public class InterceptorChain {
26  
27    private final List<Interceptor> interceptors = new ArrayList<Interceptor>();
28  
29    public Object pluginAll(Object target) {
30      for (Interceptor interceptor : interceptors) {
31        target = interceptor.plugin(target);
32      }
33      return target;
34    }
35  
36    public void addInterceptor(Interceptor interceptor) {
37      interceptors.add(interceptor);
38    }
39    
40    public List<Interceptor> getInterceptors() {
41      return Collections.unmodifiableList(interceptors);
42    }
43  
44  }