Package org.eclipse.debug.core.model

Interface IWatchExpressionDelegate

  • public interface IWatchExpressionDelegate
    A delegate which computes the value of a watch expression when provided a context. Watch delegates are provided on a per debug model basis. Watch expressions query the appropriate delegate based on the debug model of the context element. Plug-ins that wish to contribute watch expression delegates may do so using the org.eclipse.debug.core.watchExpressionDelegates extension point.

    For example, the following is the definition of a watch expression delegate for the com.example.foo plug-in: 

     <extension point="org.eclipse.debug.core.watchExpressionDelegates">
   <watchExpressionDelegate
     debugModel="org.eclipse.jdt.debug"
     delegateClass="org.eclipse.jdt.internal.debug.ui.JavaWatchExpressionDelegate"/>
  </extension>

    Clients are intended to implement this interface.

    Since:
    3.0
    See Also:
    IWatchExpression, IWatchExpressionListener

    • Method Detail

      • evaluateExpression

        void evaluateExpression​(String expression,
                        IDebugElement context,
                        IWatchExpressionListener listener)
        Evaluates the given expression in the given context asynchronously and notifies the given listener when the evaluation finishes.
        Parameters:
        expression - the expression to evaluate
        context - the context for the evaluation
        listener - the listener to notify when the evaluation completes