CallbackToFutureAdapter.Resolver
public
static
interface
CallbackToFutureAdapter.Resolver
| androidx.concurrent.futures.CallbackToFutureAdapter.Resolver<T> |
This interface should be implemented by the object passed into
CallbackToFutureAdapter.getFuture(Resolver).
Implementations are responsible to resolve passed CallbackToFutureAdapter.Completer object to
success or failure inline or in the response to some other callback.
This interface creates a logical scope for the code that resolves a future
returned from CallbackToFutureAdapter.getFuture(Resolver) and separates it from outer scope that works
with that future as adding listeners etc. This separation allows us to detect situations
when the returned future isn't done, but the completer object was garbage collected,
and fail the future appropriately instead of keeping the future and
its listeners chain forever.
Summary
Public methods | |
|---|---|
abstract
Object
|
attachCompleter(Completer<T> completer)
Create your callback object and start whatever operations are required to trigger it here. |
Public methods
attachCompleter
public abstract Object attachCompleter (Completer<T> completer)
Create your callback object and start whatever operations are required to trigger it here.
| Parameters | |
|---|---|
completer |
Completer: Call one of the set methods on this object to complete the returned
Future. |
| Returns | |
|---|---|
Object |
an object to use as the human-readable description of what is expected to complete this future. In error cases, its toString() will be included in the message. |
| Throws | |
|---|---|
Exception |
|