org.apache.cassandra.service
Class WriteResponseHandler

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

All Implemented Interfaces:

IAsyncCallback, IMessageCallback

Direct Known Subclasses:

DatacenterWriteResponseHandler

public class WriteResponseHandler
extends AbstractWriteResponseHandler

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

Field Summary

protected static org.slf4j.Logger	logger
protected java.util.concurrent.atomic.AtomicInteger	responses

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

callback, consistencyLevel, naturalEndpoints, pendingEndpoints, startTime, table

Constructor Summary

WriteResponseHandler(java.util.Collection<java.net.InetAddress> writeEndpoints, java.util.Collection<java.net.InetAddress> pendingEndpoints, ConsistencyLevel consistencyLevel, Table table, java.lang.Runnable callback, WriteType writeType)

WriteResponseHandler(java.net.InetAddress endpoint, WriteType writeType)

WriteResponseHandler(java.net.InetAddress endpoint, WriteType writeType, java.lang.Runnable callback)

Method Summary

protected int	ackCount()
boolean	isLatencyForSnitch()
void	response(MessageIn m) null message means "response from local write"

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

assureSufficientLiveNodes, get, signal

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final org.slf4j.Logger logger

responses

protected final java.util.concurrent.atomic.AtomicInteger responses

Constructor Detail

WriteResponseHandler

public WriteResponseHandler(java.util.Collection<java.net.InetAddress> writeEndpoints,
                            java.util.Collection<java.net.InetAddress> pendingEndpoints,
                            ConsistencyLevel consistencyLevel,
                            Table table,
                            java.lang.Runnable callback,
                            WriteType writeType)

WriteResponseHandler

public WriteResponseHandler(java.net.InetAddress endpoint,
                            WriteType writeType,
                            java.lang.Runnable callback)

WriteResponseHandler

public WriteResponseHandler(java.net.InetAddress endpoint,
                            WriteType writeType)

Method Detail

response

public void response(MessageIn m)

Description copied from class: AbstractWriteResponseHandler

null message means "response from local write"

Specified by:

response in interface IAsyncCallback

Specified by:

response in class AbstractWriteResponseHandler

Parameters:

m - response received.

ackCount

protected int ackCount()

Specified by:

ackCount in class AbstractWriteResponseHandler

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.