Coverage Report - org.jaxen.pattern.UnionPattern

Classes in this File Line Coverage Branch Coverage Complexity
UnionPattern
58% 
67% 
1.071

 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/pattern/UnionPattern.java,v 1.7 2005/06/28 13:44:44 elharo Exp $
 3  
  * $Revision: 1.7 $
 4  
  * $Date: 2005/06/28 13:44:44 $
 5  
  *
 6  
  * ====================================================================
 7  
  *
 8  
  * Copyright (C) 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
 13  
  * are met:
 14  
  * 
 15  
  * 1. Redistributions of source code must retain the above copyright
 16  
  *    notice, this list of conditions, and the following disclaimer.
 17  
  *
 18  
  * 2. Redistributions in binary form must reproduce the above copyright
 19  
  *    notice, this list of conditions, and the disclaimer that follows 
 20  
  *    these conditions in the documentation and/or other materials 
 21  
  *    provided with the distribution.
 22  
  *
 23  
  * 3. The name "Jaxen" must not be used to endorse or promote products
 24  
  *    derived from this software without prior written permission.  For
 25  
  *    written permission, please contact license@jaxen.org.
 26  
  * 
 27  
  * 4. Products derived from this software may not be called "Jaxen", nor
 28  
  *    may "Jaxen" appear in their name, without prior written permission
 29  
  *    from the Jaxen Project Management (pm@jaxen.org).
 30  
  * 
 31  
  * In addition, we request (but do not require) that you include in the 
 32  
  * end-user documentation provided with the redistribution and/or in the 
 33  
  * software itself an acknowledgement equivalent to the following:
 34  
  *     "This product includes software developed by the
 35  
  *      Jaxen Project <http://www.jaxen.org/>."
 36  
  * Alternatively, the acknowledgment may be graphical using the logos 
 37  
  * available at http://www.jaxen.org/
 38  
  *
 39  
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 40  
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 41  
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 42  
  * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
 43  
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 44  
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 45  
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 46  
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 47  
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 48  
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 49  
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 50  
  * SUCH DAMAGE.
 51  
  *
 52  
  * ====================================================================
 53  
  * This software consists of voluntary contributions made by many 
 54  
  * individuals on behalf of the Jaxen Project and was originally 
 55  
  * created by bob mcwhirter <bob@werken.com> and 
 56  
  * James Strachan <jstrachan@apache.org>.  For more information on the 
 57  
  * Jaxen Project, please see <http://www.jaxen.org/>.
 58  
  * 
 59  
  * $Id: UnionPattern.java,v 1.7 2005/06/28 13:44:44 elharo Exp $
 60  
  */
 61  
 
 62  
 package org.jaxen.pattern;
 63  
 
 64  
 import org.jaxen.Context;
 65  
 import org.jaxen.JaxenException;
 66  
 
 67  
 /** <p><code>UnionPattern</code> represents a union pattern.</p>
 68  
   *
 69  
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 70  
   * @version $Revision: 1.7 $
 71  
   */
 72  
 public class UnionPattern extends Pattern {
 73  
 
 74  
     private Pattern lhs;
 75  
     private Pattern rhs;
 76  18
     private short nodeType = ANY_NODE;
 77  18
     private String matchesNodeName = null;
 78  
     
 79  
     
 80  
     public UnionPattern() 
 81  0
     {
 82  0
     }
 83  
     
 84  
     public UnionPattern(Pattern lhs, Pattern rhs) 
 85  18
     {
 86  18
         this.lhs = lhs;
 87  18
         this.rhs = rhs;
 88  18
         init();
 89  18
     }
 90  
     
 91  
     
 92  
     public Pattern getLHS() 
 93  
     {
 94  0
         return lhs;
 95  
     }
 96  
     
 97  
     public void setLHS(Pattern lhs) 
 98  
     {
 99  0
         this.lhs = lhs;
 100  0
         init();
 101  0
     }
 102  
     
 103  
     public Pattern getRHS() 
 104  
     {
 105  0
         return rhs;
 106  
     }
 107  
     
 108  
     public void setRHS(Pattern rhs) 
 109  
     {
 110  0
         this.rhs = rhs;
 111  0
         init();
 112  0
     }
 113  
     
 114  
     
 115  
     // Pattern interface
 116  
     //-------------------------------------------------------------------------    
 117  
     
 118  
     /** @return true if the pattern matches the given node
 119  
       */
 120  
     public boolean matches( Object node, Context context ) throws JaxenException
 121  
     {
 122  0
         return lhs.matches( node, context ) || rhs.matches( node, context );
 123  
     }
 124  
     
 125  
     public Pattern[] getUnionPatterns() 
 126  
     {
 127  0
         return new Pattern[] { lhs, rhs };
 128  
     }
 129  
 
 130  
     
 131  
     public short getMatchType() 
 132  
     {
 133  12
         return nodeType;
 134  
     }
 135  
 
 136  
 
 137  
     public String getMatchesNodeName() 
 138  
     {
 139  12
         return matchesNodeName;
 140  
     }
 141  
     
 142  
     
 143  
     public Pattern simplify() 
 144  
     {
 145  18
         this.lhs = lhs.simplify();
 146  18
         this.rhs = rhs.simplify();
 147  18
         init();
 148  18
         return this;
 149  
     }
 150  
     
 151  
     public String getText() 
 152  
     {
 153  0
         return lhs.getText() + " | " + rhs.getText();
 154  
     }
 155  
         
 156  
     public String toString()
 157  
     {
 158  0
         return super.toString() + "[ lhs: " + lhs + " rhs: " + rhs + " ]";
 159  
     }
 160  
     
 161  
     // Implementation methods
 162  
     //-------------------------------------------------------------------------    
 163  
     private void init() 
 164  
     {
 165  36
         short type1 = lhs.getMatchType();
 166  36
         short type2 = rhs.getMatchType();
 167  36
         this.nodeType = ( type1 == type2 ) ? type1 : ANY_NODE;
 168  
         
 169  36
         String name1 = lhs.getMatchesNodeName();
 170  36
         String name2 = rhs.getMatchesNodeName();
 171  
         
 172  36
         this.matchesNodeName = null;
 173  36
         if ( name1 != null && name2 != null && name1.equals( name2 ) ) 
 174  
         {
 175  0
             this.matchesNodeName = name1;
 176  
         }
 177  36
     }    
 178  
 }