Coverage Report - org.jaxen.expr.DefaultUnaryExpr
 
Classes in this File Line Coverage Branch Coverage Complexity
DefaultUnaryExpr
90%
9/10
N/A
1
 
 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultUnaryExpr.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: DefaultUnaryExpr.java,v 1.16 2006/11/30 18:49:27 elharo Exp $
 46  
  */
 47  
 
 48  
 
 49  
 
 50  
 package org.jaxen.expr;
 51  
 
 52  
 import org.jaxen.Context;
 53  
 import org.jaxen.JaxenException;
 54  
 import org.jaxen.function.NumberFunction;
 55  
 
 56  
 class DefaultUnaryExpr extends DefaultExpr implements UnaryExpr
 57  
 {
 58  
     /**
 59  
      * 
 60  
      */
 61  
     private static final long serialVersionUID = 2303714238683092334L;
 62  
     private Expr expr;
 63  
 
 64  
     DefaultUnaryExpr(Expr expr)
 65  136
     {
 66  136
         this.expr = expr;
 67  136
     }
 68  
 
 69  
     public Expr getExpr()
 70  
     {
 71  288
         return this.expr;
 72  
     }
 73  
 
 74  
     public String toString()
 75  
     {
 76  0
         return "[(DefaultUnaryExpr): " + getExpr() + "]";
 77  
     }
 78  
 
 79  
     public String getText()
 80  
     {
 81  56
         return "-(" + getExpr().getText() + ")";
 82  
     }
 83  
 
 84  
     public Expr simplify()
 85  
     {
 86  136
         expr = expr.simplify();
 87  
 
 88  136
         return this;
 89  
     }
 90  
 
 91  
     public Object evaluate(Context context) throws JaxenException
 92  
     {
 93  120
         Number number = NumberFunction.evaluate( getExpr().evaluate( context ),
 94  
                                                  context.getNavigator() );
 95  
 
 96  120
         return new Double( number.doubleValue() * -1 );
 97  
     }
 98  
     
 99  
 }