org.apache.cassandra.net

Interface RequestCallbackWithFailure<T>

All Superinterfaces:

RequestCallback<T>

All Known Implementing Classes:

FailureRecordingCallback, PaxosCleanupComplete, PaxosCleanupSession, PaxosCommit, PaxosFinishPrepareCleanup, PaxosPrepare, PaxosPrepareRefresh, PaxosPropose, PaxosRequestCallback, PaxosStartPrepareCleanup

public interface RequestCallbackWithFailure<T>
extends RequestCallback<T>

Method Summary

Modifier and Type	Method and Description
default boolean	invokeOnFailure() Returns true if the callback handles failure reporting - in which case the remove host will be asked to report failures to us in the event of a problem processing the request.
void	onFailure(InetAddressAndPort from, RequestFailureReason failureReason) Called when there is an exception on the remote node or timeout happens

Methods inherited from interface org.apache.cassandra.net.RequestCallback

onResponse, trackLatencyForSnitch

Method Detail

onFailure

void onFailure(InetAddressAndPort from,
               RequestFailureReason failureReason)

Called when there is an exception on the remote node or timeout happens

Specified by:

onFailure in interface RequestCallback<T>

invokeOnFailure

default boolean invokeOnFailure()

Description copied from interface: RequestCallback

Returns true if the callback handles failure reporting - in which case the remove host will be asked to report failures to us in the event of a problem processing the request. TODO: this is an error prone method, and we should be handling failures everywhere so we should probably just start doing that, and remove this method

Specified by:

invokeOnFailure in interface RequestCallback<T>

Returns:

true if the callback should be invoked on failure