RequestHelperFactory


1   /**
2    * Licensed under the Artistic License; you may not use this file
3    * except in compliance with the License.
4    * You may obtain a copy of the License at
5    *
6    *      http://displaytag.sourceforge.net/license.html
7    *
8    * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
9    * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
10   * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
11   */
12  package org.displaytag.util;
13  
14  import javax.servlet.jsp.PageContext  ;
15  
16  
17  /**
18   * RequestHelperFactory interface.
19   * <p>
20   * Users can specify a custom RequestHelperFactory implementation in <code>displaytag.properties</code>.
21   * </p>
22   * A custom RequestHelperFactory can return a different RequestHelper implementation (the
23   * {@link DefaultRequestHelperFactory}returns instaces of {@link DefaultRequestHelper})
24   * @author Fabrizio Giustina
25   * @version $Revision: 720 $ ($Author: fgiust $)
26   */
27  public interface RequestHelperFactory
28  {
29  
30      /**
31       * returns a RequestHelper instance for a given request.
32       * @param pageContext PageContext passed by the tag
33       * @return RequestHelper instance
34       */
35      RequestHelper getRequestHelperInstance(PageContext   pageContext);
36  
37  }
38

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