Coverage report

  %line %branch
org.apache.commons.jelly.tags.core.BreakTag
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 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 package org.apache.commons.jelly.tags.core;
 17  
 
 18  
 import org.apache.commons.jelly.TagSupport;
 19  
 import org.apache.commons.jelly.XMLOutput;
 20  
 import org.apache.commons.jelly.impl.BreakException;
 21  
 import org.apache.commons.jelly.expression.Expression;
 22  
 
 23  
 /**
 24  
  * A tag which terminates the execution of the current <forEach> or ≶while>
 25  
  * loop. This tag can take an optional boolean test attribute which if its true
 26  
  * then the break occurs otherwise the loop continues processing.
 27  
  *
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  * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 29  
  * @version $Revision: 155420 $
 30  
  */
 31  
 public class BreakTag extends TagSupport {
 32  
 
 33  
     /** The expression to evaluate. */
 34  
     private Expression test;
 35  
 
 36  
     /**
 37  
      * If specified, the given variable will hold a true/false value
 38  
      * indicating if the loop was broken.
 39  
      */
 40  
     private String var;
 41  
 
 42  260
     public BreakTag() {
 43  260
     }
 44  
 
 45  
     // Tag interface
 46  
     //-------------------------------------------------------------------------
 47  
     public void doTag(XMLOutput output) throws BreakException {
 48  1209
         boolean broken = false;
 49  1209
         if (test == null || test.evaluateAsBoolean(context)) {
 50  208
             broken = true;
 51  
         }
 52  1209
         if ( var != null ) {
 53  780
             context.setVariable( this.var, String.valueOf(broken));
 54  
         }
 55  1209
         if ( broken ) {
 56  208
             throw new BreakException();
 57  
         }
 58  1001
     }
 59  
 
 60  
     /**
 61  
      * Sets the Jelly expression to evaluate (optional).
 62  
      * If this is <code>null</code> or evaluates to
 63  
      * <code>true</code> then the loop is terminated
 64  
      *
 65  
      * @param test the Jelly expression to evaluate
 66  
      */
 67  
     public void setTest(Expression test) {
 68  1131
         this.test = test;
 69  1131
     }
 70  
 
 71  
     /**
 72  
      * Sets the variable name to export indicating if the item was broken
 73  
      * @param var name of the variable to be exported
 74  
      */
 75  
     public void setVar(String var) {
 76  780
         this.var = class="keyword">var;
 77  780
     }
 78  
 
 79  
 }

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