EachOptionalPendingResult
is aPendingResult
with additional support for non-blocking accessors. The result of an
OptionalPendingResult
may be available immediately. If the result is available
isDone()
will return true.
Public Constructor Summary
Public Method Summary
abstract R | |
abstract boolean |
isDone()
Returns true if the result is available immediately, false otherwise.
|
Inherited Method Summary
Public Constructors
publicOptionalPendingResult()
Public Methods
public abstract Rget()
Returns theResult
immediately if it is available. If the result is not available, an exception will be
thrown. This method should only be called after checking that
isDone()
returns true.
After the result has been retrieved using
get()
,PendingResult.await()
,
or has been delivered to the result callback, it is an error to attempt to retrieve the
result again. It is the responsibility of the caller or callback receiver to release
any resources associated with the returned result. Some result types may implement
Releasable
,
in which caseReleasable.release()
should be used to free the associated resources.
Throws
IllegalStateException | when the result is not
isDone() . |
---|
public abstract boolean isDone()
Returns true if the result is available immediately, false otherwise.