DialogInterface


1   /**
2    *
3    * Magnolia and its source-code is licensed under the LGPL.
4    * You may copy, adapt, and redistribute this file for commercial or non-commercial use.
5    * When copying, adapting, or redistributing this document in keeping with the guidelines above,
6    * you are required to provide proper attribution to obinary.
7    * If you reproduce or distribute the document without making any substantive modifications to its content,
8    * please use the following attribution line:
9    *
10   * Copyright 1993-2005 obinary Ltd. (http://www.obinary.com) All rights reserved.
11   *
12   */
13  package info.magnolia.cms.gui.dialog;
14  
15  import info.magnolia.cms.core.Content;
16  
17  import java.io.IOException  ;
18  import java.io.Writer  ;
19  
20  import javax.jcr.RepositoryException;
21  import javax.servlet.http.HttpServletRequest  ;
22  import javax.servlet.http.HttpServletResponse  ;
23  
24  
25  /**
26   * Interface for dialogs. A Magnolia Dialog should at least implements the <code>drawHtml</code> method to add html
27   * code to a page. Dialogs must have an empty constructor; the <code>init(Content, Content, PageContext)</code> is
28   * assured to be called before any other operation.
29   * @author Vinzenz Wyser
30   * @version 2.0
31   */
32  public interface DialogInterface {
33  
34      /**
35       * Initialize a Dialog. This method is guaranteed to be called just after the control instantiation.
36       * @param request current HttpServletRequest
37       * @param response current HttpServletResponse
38       * @param websiteNode current website node
39       * @param configNode configuration node for the dialog
40       * @throws RepositoryException
41       */
42      void init(HttpServletRequest   request, HttpServletResponse   response, Content websiteNode, Content configNode)
43          throws RepositoryException;
44  
45      /**
46       * Actually draw the dialog content.
47       * @param out Writer
48       * @throws IOException exceptions thrown when writing to the Writer can be safely rethrown by the dialog
49       */
50      void drawHtml(Writer   out) throws IOException  ;
51  
52  }
53
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