org.apache.cassandra.service
Class DatacenterWriteResponseHandler

java.lang.Object
  org.apache.cassandra.service.AbstractWriteResponseHandler
      org.apache.cassandra.service.WriteResponseHandler
          org.apache.cassandra.service.DatacenterWriteResponseHandler

All Implemented Interfaces:

IAsyncCallback, IMessageCallback, IWriteResponseHandler

public class DatacenterWriteResponseHandler
extends WriteResponseHandler

This class blocks for a quorum of responses _in the local datacenter only_ (CL.LOCAL_QUORUM).

Field Summary

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

logger, responses

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

callback, consistencyLevel, startTime, writeEndpoints

Constructor Summary

protected

DatacenterWriteResponseHandler(java.util.Collection<java.net.InetAddress> writeEndpoints, org.apache.cassandra.thrift.ConsistencyLevel consistencyLevel, java.lang.String table, java.lang.Runnable callback)

Method Summary

void	assureSufficientLiveNodes()
static IWriteResponseHandler	create(java.util.Collection<java.net.InetAddress> writeEndpoints, org.apache.cassandra.thrift.ConsistencyLevel consistencyLevel, java.lang.String table, java.lang.Runnable callback)
protected int	determineBlockFor(java.lang.String table)
void	response(Message message) null message means "response from local write"

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

create, isLatencyForSnitch

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

get, signal

Methods inherited from class java.lang.Object

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

Constructor Detail

DatacenterWriteResponseHandler

protected DatacenterWriteResponseHandler(java.util.Collection<java.net.InetAddress> writeEndpoints,
                                         org.apache.cassandra.thrift.ConsistencyLevel consistencyLevel,
                                         java.lang.String table,
                                         java.lang.Runnable callback)

Method Detail

create

public static IWriteResponseHandler create(java.util.Collection<java.net.InetAddress> writeEndpoints,
                                           org.apache.cassandra.thrift.ConsistencyLevel consistencyLevel,
                                           java.lang.String table,
                                           java.lang.Runnable callback)

determineBlockFor

protected int determineBlockFor(java.lang.String table)

Overrides:

determineBlockFor in class WriteResponseHandler

response

public void response(Message message)

Description copied from class: AbstractWriteResponseHandler

null message means "response from local write"

Specified by:

response in interface IAsyncCallback

Overrides:

response in class WriteResponseHandler

Parameters:

message - response received.

assureSufficientLiveNodes

public void assureSufficientLiveNodes()
                               throws org.apache.cassandra.thrift.UnavailableException

Specified by:

assureSufficientLiveNodes in interface IWriteResponseHandler

Overrides:

assureSufficientLiveNodes in class WriteResponseHandler

Throws:

org.apache.cassandra.thrift.UnavailableException