- Type Parameters:
V- The result type of the I/O operation
A- The type of the object attached to the I/O operation
public interface CompletionHandler<V,A>A handler for consuming the result of an asynchronous I/O operation.
The asynchronous channels defined in this package allow a completion handler to be specified to consume the result of an asynchronous operation. The
completedmethod is invoked when the I/O operation completes successfully. The
failedmethod is invoked if the I/O operations fails. The implementations of these methods should complete in a timely manner so as to avoid keeping the invoking thread from dispatching to other completion handlers.
completedInvoked when an operation has completed.
result- The result of the I/O operation.
attachment- The object attached to the I/O operation when it was initiated.