HttpJspPage


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   
18  package javax.servlet.jsp;
19  
20  import javax.servlet.*;
21  import javax.servlet.http.*;
22  import java.io.IOException  ;
23  
24  /**
25   * The HttpJspPage interface describes the interaction that a JSP Page
26   * Implementation Class must satisfy when using the HTTP protocol.
27   *
28   * <p>
29   * The behaviour is identical to that of the JspPage, except for the signature
30   * of the _jspService method, which is now expressible in the Java type
31   * system and included explicitly in the interface.
32   * 
33   * @see JspPage
34   */
35  
36  public interface HttpJspPage extends JspPage   {
37  
38      /** The _jspService()method corresponds to the body of the JSP page. This
39       * method is defined automatically by the JSP container and should never
40       * be defined by the JSP page author.
41       * <p>
42       * If a superclass is specified using the extends attribute, that
43       * superclass may choose to perform some actions in its service() method
44       * before or after calling the _jspService() method.  See using the extends
45       * attribute in the JSP_Engine chapter of the JSP specification.
46       *
47       * @param request Provides client request information to the JSP.
48       * @param response Assists the JSP in sending a response to the client.
49       * @throws ServletException Thrown if an error occurred during the 
50       *     processing of the JSP and that the container should take 
51       *     appropriate action to clean up the request.
52       * @throws IOException Thrown if an error occurred while writing the
53       *     response for this page.
54       */
55      public void _jspService(HttpServletRequest request,
56                              HttpServletResponse response)
57         throws ServletException, IOException  ;
58  }
59
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