About Question enthuware.oce-ejbd.v6.2.410 :
Posted: Thu Jun 09, 2011 3:34 pm
Hi,
A client of the above bean executes the following code:
Future<Integer> f = aynchBeanRef.asyncM1FutureInt();
f.cancel();
java.util.concurrent
Interface Future<V>
boolean cancel(boolean mayInterruptIfRunning)
Attempts to cancel execution of this task. This attempt will fail if the task has already completed, has already been cancelled, or could not be cancelled for some other reason. If successful, and this task has not started when cancel is called, this task should never run. If the task has already started, then the mayInterruptIfRunning parameter determines whether the thread executing this task should be interrupted in an attempt to stop the task.
After this method returns, subsequent calls to isDone() will always return true. Subsequent calls to isCancelled() will always return true if this method returned true.
Parameters:
mayInterruptIfRunning - true if the thread executing this task should be interrupted; otherwise, in-progress tasks are allowed to complete
Returns:
false if the task could not be cancelled, typically because it has already completed normally; true otherwise
Error in f.cancel() it has mayInterruptIfRunning boolean parameter.
A client of the above bean executes the following code:
Future<Integer> f = aynchBeanRef.asyncM1FutureInt();
f.cancel();
java.util.concurrent
Interface Future<V>
boolean cancel(boolean mayInterruptIfRunning)
Attempts to cancel execution of this task. This attempt will fail if the task has already completed, has already been cancelled, or could not be cancelled for some other reason. If successful, and this task has not started when cancel is called, this task should never run. If the task has already started, then the mayInterruptIfRunning parameter determines whether the thread executing this task should be interrupted in an attempt to stop the task.
After this method returns, subsequent calls to isDone() will always return true. Subsequent calls to isCancelled() will always return true if this method returned true.
Parameters:
mayInterruptIfRunning - true if the thread executing this task should be interrupted; otherwise, in-progress tasks are allowed to complete
Returns:
false if the task could not be cancelled, typically because it has already completed normally; true otherwise
Error in f.cancel() it has mayInterruptIfRunning boolean parameter.