commons-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From d...@apache.org
Subject cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core WhileTag.java CoreTagLibrary.java
Date Sat, 05 Oct 2002 03:37:24 GMT
dion        2002/10/04 20:37:24

  Modified:    jelly/src/java/org/apache/commons/jelly/tags/core
                        CoreTagLibrary.java
  Added:       jelly/src/java/org/apache/commons/jelly/tags/core
                        WhileTag.java
  Log:
  Added While Tag donated by Eric Alexander <eric.alexander@genscape.com>
  
  Revision  Changes    Path
  1.19      +7 -6      jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/CoreTagLibrary.java
  
  Index: CoreTagLibrary.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/CoreTagLibrary.java,v
  retrieving revision 1.18
  retrieving revision 1.19
  diff -u -r1.18 -r1.19
  --- CoreTagLibrary.java	3 Oct 2002 07:52:37 -0000	1.18
  +++ CoreTagLibrary.java	5 Oct 2002 03:37:24 -0000	1.19
  @@ -88,7 +88,8 @@
           registerTag("forEach", ForEachTag.class);
           registerTag("set", SetTag.class);
           registerTag("remove", RemoveTag.class);
  -        
  +        registerTag("while", WhileTag.class);
  +
           // conditional tags
           registerTag("if", IfTag.class);
           registerTag("choose", ChooseTag.class);
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/WhileTag.java
  
  Index: WhileTag.java
  ===================================================================
  /*
   * $Header: /home/cvspublic/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/ForEach.java,v
1.15 2002/06/26 14:50:43 jstrachan Exp $
   * $Revision: 1.15 $
   * $Date: 2002/06/26 14:50:43 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 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", "Commons", 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/>.
   *
   * $Id: ForEachTag.java,v 1.15 2002/06/26 14:50:43 jstrachan Exp $
   */
  
  package org.apache.commons.jelly.tags.core;
  
  import java.io.IOException;
  import java.io.Writer;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.jelly.JellyContext;
  import org.apache.commons.jelly.MissingAttributeException;
  import org.apache.commons.jelly.Script;
  import org.apache.commons.jelly.TagSupport;
  import org.apache.commons.jelly.XMLOutput;
  import org.apache.commons.jelly.expression.Expression;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** A tag which performs an iteration while the result of an XPath expression is true.
   *
   * @author <a href="mailto:eric@ericalexander.net">Eric Alexander</a>
   * @version $Revision: 1.15 $
   */
  public class WhileTag extends TagSupport {
  
      /** The Log to which logging calls will be made. */
      private static final Log log = LogFactory.getLog(WhileTag.class);
  
      /**
       * The expression to use to determine if the while should continue
       */
      private Expression test;
  
      public WhileTag() {
      }
  
      // Tag interface
      //-------------------------------------------------------------------------
      public void doTag(XMLOutput output) throws Exception {
          if (test != null) {
              while (test.evaluateAsBoolean(getContext())) {
                  if (log.isDebugEnabled()) {
                      log.debug("evaluated to true! gonna keep on chuggin!");
                  }
                  invokeBody(output);
              }
          } else {
              throw new MissingAttributeException("test");
          }
      }
  
      // Properties
      //-------------------------------------------------------------------------
  
      /** Setter for the expression
       */
      public void setTest(Expression e) {
          this.test = e;
      }
  
  }
  
  
  
  

--
To unsubscribe, e-mail:   <mailto:commons-dev-unsubscribe@jakarta.apache.org>
For additional commands, e-mail: <mailto:commons-dev-help@jakarta.apache.org>


Mime
View raw message