Coverage Report - org.jaxen.expr.DefaultAndExpr
 
Classes in this File Line Coverage Branch Coverage Complexity
DefaultAndExpr
92%
11/12
100%
2/2
2
 
 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultAndExpr.java,v 1.16 2006/11/30 18:49:27 elharo Exp $
 3  
  * $Revision: 1.16 $
 4  
  * $Date: 2006/11/30 18:49:27 $
 5  
  *
 6  
  * ====================================================================
 7  
  *
 8  
  * Copyright 2000-2002 bob mcwhirter & James Strachan.
 9  
  * All rights reserved.
 10  
  *
 11  
  * Redistribution and use in source and binary forms, with or without
 12  
  * modification, are permitted provided that the following conditions are
 13  
  * met:
 14  
  * 
 15  
  *   * Redistributions of source code must retain the above copyright
 16  
  *     notice, this list of conditions and the following disclaimer.
 17  
  * 
 18  
  *   * Redistributions in binary form must reproduce the above copyright
 19  
  *     notice, this list of conditions and the following disclaimer in the
 20  
  *     documentation and/or other materials provided with the distribution.
 21  
  * 
 22  
  *   * Neither the name of the Jaxen Project nor the names of its
 23  
  *     contributors may be used to endorse or promote products derived 
 24  
  *     from this software without specific prior written permission.
 25  
  * 
 26  
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 27  
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 28  
  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 29  
  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 30  
  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 31  
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 32  
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 33  
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 34  
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 35  
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 36  
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 37  
  *
 38  
  * ====================================================================
 39  
  * This software consists of voluntary contributions made by many 
 40  
  * individuals on behalf of the Jaxen Project and was originally 
 41  
  * created by bob mcwhirter <bob@werken.com> and 
 42  
  * James Strachan <jstrachan@apache.org>.  For more information on the 
 43  
  * Jaxen Project, please see <http://www.jaxen.org/>.
 44  
  * 
 45  
  * $Id: DefaultAndExpr.java,v 1.16 2006/11/30 18:49:27 elharo Exp $
 46  
  */
 47  
 
 48  
 package org.jaxen.expr;
 49  
 
 50  
 import org.jaxen.Context;
 51  
 import org.jaxen.JaxenException;
 52  
 import org.jaxen.Navigator;
 53  
 import org.jaxen.function.BooleanFunction;
 54  
 
 55  
 class DefaultAndExpr extends DefaultLogicalExpr
 56  
 {
 57  
     /**
 58  
      * 
 59  
      */
 60  
     private static final long serialVersionUID = -5237984010263103742L;
 61  
 
 62  
     DefaultAndExpr(Expr lhs,
 63  
                           Expr rhs)
 64  
     {
 65  248
         super( lhs,
 66  
                rhs );
 67  248
     }
 68  
 
 69  
     public String getOperator()
 70  
     {
 71  338
         return "and";
 72  
     }
 73  
 
 74  
     public String toString()
 75  
     {
 76  0
         return "[(DefaultAndExpr): " + getLHS() + ", " + getRHS() + "]";
 77  
     }
 78  
 
 79  
     public Object evaluate(Context context) throws JaxenException
 80  
     {
 81  422
         Navigator nav = context.getNavigator();
 82  422
         Boolean lhsValue = BooleanFunction.evaluate( getLHS().evaluate( context ), nav );
 83  
 
 84  422
         if ( !lhsValue.booleanValue() )
 85  
         {
 86  190
             return Boolean.FALSE;
 87  
         }
 88  
 
 89  
         // Short circuits are required in XPath. "The right operand is not 
 90  
         // evaluated if the left operand evaluates to false."
 91  232
         Boolean rhsValue = BooleanFunction.evaluate( getRHS().evaluate( context ), nav );
 92  
 
 93  232
         if ( !rhsValue.booleanValue() )
 94  
         {
 95  6
             return Boolean.FALSE;
 96  
         }
 97  
 
 98  226
         return Boolean.TRUE;
 99  
     }
 100  
 
 101  
     
 102  
 }