org.apache.cassandra.net
Class CallbackInfo

java.lang.Object
  org.apache.cassandra.net.CallbackInfo

public class CallbackInfo
extends java.lang.Object

Encapsulates the callback information. The ability to set the message is useful in cases for when a hint needs to be written due to a timeout in the response from a replica.

Field Summary

protected IMessageCallback	callback
protected MessageOut<?>	sentMessage
protected IVersionedSerializer<?>	serializer
protected java.net.InetAddress	target

Constructor Summary

CallbackInfo(java.net.InetAddress target, IMessageCallback callback, IVersionedSerializer<?> serializer)
Create CallbackInfo without sent message

CallbackInfo(java.net.InetAddress target, IMessageCallback callback, MessageOut<?> sentMessage, IVersionedSerializer<?> serializer)

Method Summary

boolean

shouldHint()

Methods inherited from class java.lang.Object

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

Field Detail

target

protected final java.net.InetAddress target

callback

protected final IMessageCallback callback

sentMessage

protected final MessageOut<?> sentMessage

serializer

protected final IVersionedSerializer<?> serializer

Constructor Detail

CallbackInfo

public CallbackInfo(java.net.InetAddress target,
                    IMessageCallback callback,
                    IVersionedSerializer<?> serializer)

Create CallbackInfo without sent message

Parameters:

target - target to send message

callback -

serializer - serializer to deserialize response message

CallbackInfo

public CallbackInfo(java.net.InetAddress target,
                    IMessageCallback callback,
                    MessageOut<?> sentMessage,
                    IVersionedSerializer<?> serializer)

Method Detail

shouldHint

public boolean shouldHint()

Returns:

TRUE if a hint should be written for this target and if the CL was achieved. FALSE otherwise. NOTE: Assumes it is only called after the write of "message" to "target" has timed out.