com.couchbase.client.dcp.buffer

Class StreamEventBuffer

java.lang.Object

com.couchbase.client.dcp.buffer.StreamEventBuffer

All Implemented Interfaces:

ControlEventHandler, DataEventHandler

public class StreamEventBuffer
extends Object
implements DataEventHandler, ControlEventHandler

When rollback mitigation / persistence polling is enabled, the stream event buffer intercepts stream events and stores them until being notified that persistence is observed. Then it forwards the events to the handlers set by the user.

Constructor Summary

Constructors

Constructor and Description
StreamEventBuffer(EventBus eventBus)

Method Summary

Modifier and Type	Method and Description
void	clear(int vbucket) Discard all buffered events in the given vbucket.
void	onEvent(ChannelFlowController flowController, io.netty.buffer.ByteBuf event) Called when a data event happens.
void	onStreamEnd(StreamEndEvent event)
void	setControlEventHandler(ControlEventHandler controlEventHandler)
void	setDataEventHandler(DataEventHandler dataEventHandler)

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamEventBuffer

public StreamEventBuffer(EventBus eventBus)

Method Detail

setDataEventHandler

public void setDataEventHandler(DataEventHandler dataEventHandler)

setControlEventHandler

public void setControlEventHandler(ControlEventHandler controlEventHandler)

onEvent

public void onEvent(ChannelFlowController flowController,
                    io.netty.buffer.ByteBuf event)

Description copied from interface: DataEventHandler

Called when a data event happens.

Make sure to release the buffers!!

Specified by:

onEvent in interface ControlEventHandler

Specified by:

onEvent in interface DataEventHandler

Parameters:

flowController - the flow controller for the passed event.

event - the data event happening right now.

onStreamEnd

public void onStreamEnd(StreamEndEvent event)

clear

public void clear(int vbucket)

Discard all buffered events in the given vbucket.