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From cml...@apache.org
Subject cvs commit: jakarta-slide/src/taglib/common/org/apache/slide/taglib/util Scopes.java
Date Thu, 01 Aug 2002 14:20:30 GMT
cmlenz      2002/08/01 07:20:29

  Added:       src/taglib/common/org/apache/slide/taglib/util Scopes.java
  Log:
  Utility class for handling with JSP scopes
  
  Revision  Changes    Path
  1.1                  jakarta-slide/src/taglib/common/org/apache/slide/taglib/util/Scopes.java
  
  Index: Scopes.java
  ===================================================================
  /*
   * $Header$
   * $Revision$
   * $Date$
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights 
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer. 
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:  
   *       "This product includes software developed by the 
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Slide", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written 
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * [Additional notices, if required by prior licensing conditions]
   *
   */
  
  package org.apache.slide.taglib.util;
  
  import javax.servlet.jsp.PageContext;
  
  /**
   * Class with utility functions to manage scopes in tags.
   *
   * @author <a href="mailto:cmlenz@apache.org">Christopher Lenz</a>
   * @version $Revision: $
   */
  public class Scopes {
      
      
      // -------------------------------------------------------------- Constants
      
      
      /**
       * String representation of the page scope ("page").
       */
      public static final String PAGE =
          "page";   
      
      
      /**
       * String representation of the request scope ("request").
       */
      public static final String REQUEST =
          "request";   
      
      
      /**
       * String representation of the session scope ("session").
       */
      public static final String SESSION =
          "session";   
      
      
      /**
       * String representation of the application scope ("application").
       */
      public static final String APPLICATION =
          "application"; 
      
      
      // ----------------------------------------------------------- Constructors
      
      
  	/**
       * Constructor hidden to guarantee non-instatiability.
  	 */
  	private Scopes() {
  		
  	}
      
      
      // -------------------------------------------------- Public Static Methods
      
      
      /**
       * Returns the value of the JSP PageContext integer constant representation 
       * of the scope identified by name.
       * 
       * @param scopeName the name of the scope
       * @return integer value representing the scope, as defined in PageContext
       */
      public static int valueOf(String scopeName) {
          
          int scope = PageContext.PAGE_SCOPE;
          if (REQUEST.equalsIgnoreCase(scopeName)) {
              scope = PageContext.REQUEST_SCOPE;
          } else if (SESSION.equalsIgnoreCase(scopeName)) {
              scope = PageContext.SESSION_SCOPE;
          } else if (APPLICATION.equalsIgnoreCase(scopeName)) {
              scope = PageContext.APPLICATION_SCOPE;
          }
  
          return scope;
      }
      
      
  }
  
  
  
  

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