oracle.ide.model.concurrent

Interface CallableResultHandler<T>

public interface CallableResultHandler<T>

Used by AsynchronousCallableCompletionService to specify a callback class, whose methods are called with the result (or exception) of the Callable submitted to the service.

Usage Example

 class AddToListCallableImpl implements CallableResultHandler<Integer> 
 {
    final List<Integer> resultList = Collections.synchronizedList(new ArrayList<Integer>());
    final List<ExecutionException> errorList = Collections.synchronizedList(new ArrayList<ExecutionException>());
                
    public void onCompletion(Integer resultFromAsynchronousOperation) {
       resultList.add(resultFromAsynchronousOperation);
       // Do stuff with the result ... 
    }

    public void onException(ExecutionException executionException) {
       errorList.add(executionException);
       executionException.printStackTrace();
    }
 }
 

Method Summary

Methods

Modifier and Type	Method and Description
void	onCompletion(T resultOfCallable) Invoked with the result of the Callable submitted to AsynchronousCallableCompletionService.submit(Callable).
void	onException(java.util.concurrent.ExecutionException executionException) Invoked with the ExecutionException of the Callable submitted to AsynchronousCallableCompletionService.submit(Callable).

Method Detail

onCompletion

void onCompletion(T resultOfCallable)

Invoked with the result of the Callable submitted to AsynchronousCallableCompletionService.submit(Callable).

Parameters:

resultOfCallable - the Callable's result.

onException

void onException(java.util.concurrent.ExecutionException executionException)

Invoked with the ExecutionException of the Callable submitted to AsynchronousCallableCompletionService.submit(Callable).

Parameters:

executionException - the Callable's exception. Use Throwable.getCause() to determine the cause.