ThreadContextAccessor


1   /*
2    * Copyright (C) The Apache Software Foundation. All rights reserved.
3    *
4    * This software is published under the terms of the Apache Software License
5    * version 1.1, a copy of which has been included with this distribution in
6    * the LICENSE.txt file.
7    */
8   package org.apache.avalon.excalibur.lang;
9   
10  import java.util.HashMap  ;
11  import java.util.Map  ;
12  import java.util.Iterator  ;
13  
14  /**
15   * The <code>ThreadContextAccessor</code> is the interface through which
16   * ThreadContextPolicy objects access thread context. This is required so 
17   * that it can be exposed only to ThreadContextPolicy and not the whole 
18   * world.
19   *
20   * @author <a HREF="mailto:peter@apache.org">Peter Donald</a>
21   */
22  public interface ThreadContextAccessor
23  {
24      /**
25       * Determine if ThreadContext contains specified key.
26       *
27       * @param key the key
28       */
29      boolean containsKey( String   key );
30  
31      /**
32       * Retrieve value for specified key.
33       *
34       * @param key the key
35       */
36      Object   get( String   key );
37  }
38

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