- Type Parameters:
V
- The result type of the I/O operationA
- 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 completed
method is invoked when the I/O operation
completes successfully. The failed
method 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.
- Since:
- 1.7
-
Method Summary
-
Method Details
-
completed
Invoked when an operation has completed.- Parameters:
result
- The result of the I/O operation.attachment
- The object attached to the I/O operation when it was initiated.
-
failed
Invoked when an operation fails.- Parameters:
exc
- The exception to indicate why the I/O operation failedattachment
- The object attached to the I/O operation when it was initiated.
-