CacheResponse


1   /*
2    * @(#)CacheResponse.java   1.1 03/09/22
3    *
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package java.net;
9   
10  import java.io.InputStream  ;
11  import java.util.Map  ;
12  import java.util.List  ;
13  import java.io.IOException  ;
14  
15  /**
16   * Represent channels for retrieving resources from the
17   * ResponseCache. Instances of such a class provide an
18   * InputStream that returns the entity body, and also a
19   * getHeaders() method which returns the associated response headers.
20   *
21   * @version 1.1, 03/09/22
22   * @author Yingxian Wang
23   * @since 1.5
24   */
25  public abstract class CacheResponse {
26  
27      /**
28       * Returns the response headers as a Map.
29       *
30       * @return An immutable Map from response header field names to
31       *         lists of field values. The status line has null as its
32       *         field name.
33       * @throws IOException if an I/O error occurs
34       *            while getting the response headers
35       */
36      public abstract Map  <String  , List  <String  >> getHeaders() throws IOException  ;
37  
38      /**
39       * Returns the response body as an InputStream.
40       *
41       * @return an InputStream from which the response body can
42       *         be accessed
43       * @throws IOException if an I/O error occurs while
44       *         getting the response body
45       */
46      public abstract InputStream   getBody() throws IOException  ;
47  }
48
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