org.apache.cassandra.service
Class DatacenterReadCallback<T>

java.lang.Object
  org.apache.cassandra.service.ReadCallback<T>
      org.apache.cassandra.service.DatacenterReadCallback<T>

All Implemented Interfaces:

IAsyncCallback, IMessageCallback

public class DatacenterReadCallback<T>
extends ReadCallback<T>

Datacenter Quorum response handler blocks for a quorum of responses from the local DC

Field Summary

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

blockfor, condition, logger, resolver

Constructor Summary

DatacenterReadCallback(IResponseResolver resolver, ConsistencyLevel consistencyLevel, IReadCommand command, java.util.List<java.net.InetAddress> endpoints)

Method Summary

void	assureSufficientLiveNodes()
int	determineBlockFor(ConsistencyLevel consistency_level, java.lang.String table)
void	response(Message message)
void	response(ReadResponse result)

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

get, isLatencyForSnitch, maybeResolveForRepair

Methods inherited from class java.lang.Object

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

Constructor Detail

DatacenterReadCallback

public DatacenterReadCallback(IResponseResolver resolver,
                              ConsistencyLevel consistencyLevel,
                              IReadCommand command,
                              java.util.List<java.net.InetAddress> endpoints)

Method Detail

response

public void response(Message message)

Specified by:

response in interface IAsyncCallback

Overrides:

response in class ReadCallback<T>

Parameters:

message - response received.

response

public void response(ReadResponse result)

Overrides:

response in class ReadCallback<T>

determineBlockFor

public int determineBlockFor(ConsistencyLevel consistency_level,
                             java.lang.String table)

Overrides:

determineBlockFor in class ReadCallback<T>

assureSufficientLiveNodes

public void assureSufficientLiveNodes()
                               throws UnavailableException

Overrides:

assureSufficientLiveNodes in class ReadCallback<T>

Throws:

UnavailableException