Docjar: org/infohazard/maverick/view/NullViewFactory.java

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Source code: org/infohazard/maverick/view/NullViewFactory.java

1   /*
2    * $Id: NullViewFactory.java,v 1.2 2002/06/06 12:23:56 lhoriman Exp $
3    * $Source: /cvsroot/mav/maverick/src/java/org/infohazard/maverick/view/NullViewFactory.java,v $
4    */
5   
6   package org.infohazard.maverick.view;
7   
8   import org.infohazard.maverick.flow.*;
9   import org.jdom.Element;
10  import java.io.IOException;
11  import javax.servlet.ServletConfig;
12  import javax.servlet.ServletException;
13  
14  
15  /**
16   * <p>Creates a view which does absolutely nothing.  The Controller
17   * is assumed to have manually written all data to the response.  The
18   * model is ignored.</p>
19   *
20   * <p>Null views have no extra attributes and cannot have transforms.</p> 
21   */
22  public class NullViewFactory implements ViewFactory
23  {
24    /**
25     */
26    static View singletonNull = new NullView();
27     
28    /**
29     */
30    public void init(Element factoryNode, ServletConfig servletCfg) throws ConfigException
31    {
32    }
33  
34    /**
35     */
36    public View createView(Element viewNode) throws ConfigException
37    {
38      return singletonNull;
39    }
40    
41    /**
42     * Simple implementation does nothing.
43     */
44    public static class NullView implements View
45    {
46      /** Nothing! */
47      public void go(ViewContext vctx) throws IOException, ServletException
48      {
49      }
50    }
51  }