org.apache.cassandra.service

Class DatacenterSyncWriteResponseHandler<T>

java.lang.Object

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

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

All Implemented Interfaces:

IAsyncCallback<T>, IAsyncCallbackWithFailure<T>

public class DatacenterSyncWriteResponseHandler<T>
extends AbstractWriteResponseHandler<T>

This class blocks for a quorum of responses _in all datacenters_ (CL.EACH_QUORUM).

Field Summary

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

callback, consistencyLevel, keyspace, logger, naturalEndpoints, pendingEndpoints, start

Fields inherited from interface org.apache.cassandra.net.IAsyncCallback

isAlive

Constructor Summary

Constructors

Constructor and Description
DatacenterSyncWriteResponseHandler(java.util.Collection<java.net.InetAddress> naturalEndpoints, java.util.Collection<java.net.InetAddress> pendingEndpoints, ConsistencyLevel consistencyLevel, Keyspace keyspace, java.lang.Runnable callback, WriteType writeType)

Method Summary

Modifier and Type	Method and Description
protected int	ackCount()
boolean	isLatencyForSnitch()
void	response(MessageIn<T> message) null message means "response from local write"

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

assureSufficientLiveNodes, get, onFailure, signal, totalBlockFor, totalEndpoints, waitingFor

Methods inherited from class java.lang.Object

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

Constructor Detail

DatacenterSyncWriteResponseHandler

public DatacenterSyncWriteResponseHandler(java.util.Collection<java.net.InetAddress> naturalEndpoints,
                                          java.util.Collection<java.net.InetAddress> pendingEndpoints,
                                          ConsistencyLevel consistencyLevel,
                                          Keyspace keyspace,
                                          java.lang.Runnable callback,
                                          WriteType writeType)

Method Detail

response

public void response(MessageIn<T> message)

Description copied from class: AbstractWriteResponseHandler

null message means "response from local write"

Specified by:

response in interface IAsyncCallback<T>

Specified by:

response in class AbstractWriteResponseHandler<T>

Parameters:

message - response received.

ackCount

protected int ackCount()

Specified by:

ackCount in class AbstractWriteResponseHandler<T>

Returns:

number of responses received

isLatencyForSnitch

public boolean isLatencyForSnitch()

Returns:

true if this callback is on the read path and its latency should be given as input to the dynamic snitch.