Coverage Report - org.jaxen.SimpleVariableContext
 
Classes in this File Line Coverage Branch Coverage Complexity
SimpleVariableContext
100%
11/11
100%
1/1
1.75
 
 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/SimpleVariableContext.java,v 1.19 2006/06/03 20:19:54 elharo Exp $
 3  
  * $Revision: 1.19 $
 4  
  * $Date: 2006/06/03 20:19:54 $
 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: SimpleVariableContext.java,v 1.19 2006/06/03 20:19:54 elharo Exp $
 46  
  */
 47  
 
 48  
 
 49  
 package org.jaxen;
 50  
 
 51  
 import java.io.Serializable;
 52  
 import java.util.HashMap;
 53  
 import java.util.Map;
 54  
 
 55  
 /** Simple default implementation for <code>VariableContext</code>.
 56  
  *
 57  
  *  <p>
 58  
  *  This is a simple table-based key-lookup implementation
 59  
  *  for <code>VariableContext</code> which can be programmatically
 60  
  *  extended by setting additional variables.
 61  
  *  </p>
 62  
  *
 63  
  *  @author <a href="mailto:bob@werken.com">bob mcwhirter</a>
 64  
  */
 65  
 public class SimpleVariableContext implements VariableContext, Serializable
 66  
 {
 67  
     /**
 68  
      * 
 69  
      */
 70  
     private static final long serialVersionUID = 961322093794516518L;
 71  
     /** Table of variable bindings. */
 72  
     private Map variables;
 73  
 
 74  
     /** Construct.
 75  
      *
 76  
      *  <p>
 77  
      *  Create a new empty variable context.
 78  
      *  </p>
 79  
      */
 80  
     public SimpleVariableContext()
 81  1714
     {
 82  1714
         variables = new HashMap();
 83  1714
     }
 84  
 
 85  
     /** Set the value associated with a variable.
 86  
      *
 87  
      *  <p>
 88  
      *  This method sets a variable that is 
 89  
      *  associated with a particular namespace.
 90  
      *  These variables appear such as <code>$prefix:foo</code>
 91  
      *  in an XPath expression.  Prefix to URI resolution
 92  
      *  is the responsibility of a <code>NamespaceContext</code>.
 93  
      *  Variables within a <code>VariableContext</code> are
 94  
      *  referred to purely based upon their namespace URI,
 95  
      *  if any.
 96  
      *  </p>
 97  
      *
 98  
      *  @param namespaceURI the namespace URI of the variable
 99  
      *  @param localName the local name of the variable
 100  
      *  @param value The value to be bound to the variable
 101  
      */
 102  
     public void setVariableValue( String namespaceURI,
 103  
                                   String localName,
 104  
                                   Object value )
 105  
     {
 106  16
         this.variables.put( new QualifiedName(namespaceURI, localName),
 107  
                             value );
 108  16
     }
 109  
 
 110  
     /** Set the value associated with a variable.
 111  
      *
 112  
      *  <p>
 113  
      *  This method sets a variable that is <strong>not</strong>
 114  
      *  associated with any particular namespace.
 115  
      *  These variables look like <code>$foo</code>
 116  
      *  in an XPath expression.
 117  
      *  </p>
 118  
      *
 119  
      *  @param localName the local name of the variable
 120  
      *  @param value the value to be bound to the variable
 121  
      */
 122  
     public void setVariableValue( String localName,
 123  
                                   Object value )
 124  
     {
 125  8
         this.variables.put( new QualifiedName(null, localName), value );
 126  8
     }
 127  
 
 128  
     public Object getVariableValue( String namespaceURI,
 129  
                                     String prefix,
 130  
                                     String localName )
 131  
         throws UnresolvableException
 132  
     {
 133  42
         QualifiedName key = new QualifiedName( namespaceURI, localName );
 134  
 
 135  42
         if ( this.variables.containsKey(key) )
 136  
         {
 137  38
             return this.variables.get( key );
 138  
         }
 139  
         else
 140  
         {
 141  4
             throw new UnresolvableException( "Variable " + key.getClarkForm() );
 142  
         }
 143  
     }
 144  
 }