org.eclipse.jetty.util

Interface Callback

All Known Subinterfaces:

IStream, StandardSession.FrameBytes

All Known Implementing Classes:

AsyncMiddleManServlet.ProxyReader, AsyncMiddleManServlet.ProxyResponseListener, AsyncProxyServlet.StreamReader, BlockingCallback, BlockingWriteCallback.WriteBlocker, Callback.Adapter, CompletableCallback, CountingCallback, DeferredContentProvider, FutureCallback, FutureWriteCallback, Generator.Result, HttpContent, HttpInputOverHTTP, InputStreamContentProvider, IteratingCallback, IteratingNestedCallback, OutputStreamContentProvider, ProxyServlet.ProxyInputStreamContentProvider, SharedBlockingCallback.Blocker, StandardSession.CloseFrameBytes, StandardSession.ControlFrameBytes, StandardSession.DataFrameBytes, StandardStream, UpgradeConnection.SendUpgradeRequest, WriteCallbackWrapper

public interface Callback

A callback abstraction that handles completed/failed events of asynchronous operations.

Semantically this is equivalent to an optimise Promise<Void>, but callback is a more meaningful name than EmptyPromise

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Callback.Adapter Empty implementation of Callback

Method Summary

Methods

Modifier and Type	Method and Description
void	failed(Throwable x) Callback invoked when the operation fails.
void	succeeded() Callback invoked when the operation completes.

Method Detail

succeeded

void succeeded()

Callback invoked when the operation completes.

See Also:

failed(Throwable)

failed

void failed(Throwable x)

Callback invoked when the operation fails.

Parameters:

x - the reason for the operation failure