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         This extension point provides a configurable mechanism for comparing specific attributes of a launch configuration.
In general, launch configuration attributes can be compared for equality via the default implementation of <samp>java.lang.Object.equals(Object)</samp>.
However, attributes that require special handling should implement this extension point.
For example, when an attribute is stored as XML, it is possible that two strings representing an equivalent attribute have different whitespace formatting.
      
   

   
      
         
            
         
         
            
               
                  a fully qualified identifier of the target extension point
               
            
         
         
            
               
                  an optional identifier of the extension instance
               
            
         
         
            
               
                  an optional name of the extension instance
               
            
         
      
   

   
      
         
            
               
                  specifies a unique identifier for this extension.
               
            
         
         
            
               
                  specifies the launch configuration attribute name that this comparator compares.
               
            
         
         
            
               
                  specifies a fully-qualified name of a class that implements <code>java.util.Comparator</code>.
               
               
                  
               
            
         
      
   

   
      
         
      
      
         The following is an example of a launch configuration comparator extension point:

<p>
<pre>
 <extension point="org.eclipse.debug.core.launchConfigurationComparators">
  <launchConfigurationComparator
   id="com.example.ExampleIdentifier"
   attribute="com.example.ExampleAttributeName"
   class="com.example.ComparatorImplementation">
  </launchConfigurationComparator>
 </extension>
</pre>
</p>

In the example above, the specified type of launch configuration comparator will be consulted when comparing the equality of attributes keyed with name <samp>com.example.ExampleAttributeName</samp>.
      
   

   
      
         
      
      
         Value of the attribute <b>class</b> must be a fully-qualified name of a Java class that implements the interface <b>java.util.Comparator</b>.
      
   

   
      
         
      
      
         Copyright (c) 2000, 2005 IBM Corporation and others.<br>
All rights reserved. This program and the accompanying materials are made 
available under the terms of the Eclipse Public License v1.0 which 
accompanies this distribution, and is available at 
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