Launch Configuration Comparators

Identifier: org.eclipse.debug.core.launchConfigurationComparators

Description: 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 java.lang.Object.equals(Object). 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.

Configuration Markup:

   <!ELEMENT launchConfigurationComparator>
   <!ATTLIST launchConfigurationComparator 

      id         CDATA #REQUIRED
      attribute  CDATA #REQUIRED
      class      CDATA #REQUIRED

Examples:

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

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

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

API Information: Value of the attribute class must be a fully qualified name of a Java class that implements the interface java.util.Comparator.

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