Package org.apache.cassandra.service

Class WriteResponseHandler<T>

java.lang.Object

org.apache.cassandra.service.AbstractWriteResponseHandler<T>

org.apache.cassandra.service.WriteResponseHandler<T>

All Implemented Interfaces:

RequestCallback<T>

Direct Known Subclasses:

DatacenterWriteResponseHandler

public class WriteResponseHandler<T>
extends AbstractWriteResponseHandler<T>

Handles blocking writes for ONE, ANY, TWO, THREE, QUORUM, and ALL consistency levels.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.slf4j.Logger	logger
protected int	responses

Fields inherited from class org.apache.cassandra.service.AbstractWriteResponseHandler

callback, replicaPlan, writeType

Constructor Summary

Constructors

Constructor	Description
WriteResponseHandler(ReplicaPlan.ForWrite replicaPlan, Runnable callback, WriteType writeType, Supplier<Mutation> hintOnFailure, Dispatcher.RequestTime requestTime)
WriteResponseHandler(ReplicaPlan.ForWrite replicaPlan, WriteType writeType, Supplier<Mutation> hintOnFailure, Dispatcher.RequestTime requestTime)

Method Summary

Modifier and Type	Method	Description
protected int	ackCount()
void	onResponse(Message<T> m)	null message means "response from local write"

Methods inherited from class org.apache.cassandra.service.AbstractWriteResponseHandler

blockFor, candidateReplicaCount, consistencyLevel, currentTimeoutNanos, expired, get, getRequestTime, invokeOnFailure, logFailureOrTimeoutToIdealCLDelegate, logResponseToIdealCLDelegate, maybeTryAdditionalReplicas, onFailure, setIdealCLResponseHandler, signal, waitingFor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

trackLatencyForSnitch

Field Details

logger

protected static final org.slf4j.Logger logger

responses

protected volatile int responses

Constructor Details

WriteResponseHandler

public WriteResponseHandler(ReplicaPlan.ForWrite replicaPlan,
 Runnable callback,
 WriteType writeType,
 Supplier<Mutation> hintOnFailure,
 Dispatcher.RequestTime requestTime)

WriteResponseHandler

public WriteResponseHandler(ReplicaPlan.ForWrite replicaPlan,
 WriteType writeType,
 Supplier<Mutation> hintOnFailure,
 Dispatcher.RequestTime requestTime)

Method Details

onResponse

public void onResponse(Message<T> m)

Description copied from class: AbstractWriteResponseHandler

null message means "response from local write"

Specified by:

onResponse in interface RequestCallback<T>

Specified by:

onResponse in class AbstractWriteResponseHandler<T>

Parameters:

m - response received.

ackCount

protected int ackCount()

Specified by:

ackCount in class AbstractWriteResponseHandler<T>

Returns:

number of responses received