org.wso2.siddhi.core.query.input.stream.join

Class JoinProcessor

java.lang.Object

org.wso2.siddhi.core.query.input.stream.join.JoinProcessor

All Implemented Interfaces:

Processor

public class JoinProcessor
extends Object
implements Processor

Created on 12/8/14.

Constructor Summary

Constructors

Constructor and Description
JoinProcessor(boolean leftJoinProcessor, boolean preJoinProcessor, boolean outerJoinProcessor, int matchingStreamIndex)

Method Summary

Modifier and Type	Method and Description
Processor	cloneProcessor(String key) Clone a copy of processor
Processor	getNextProcessor() Get next processor element in the processor chain.
StateEvent	joinEventBuilder(StreamEvent leftStream, StreamEvent rightStream, ComplexEvent.Type type) Join the given two event streams
void	process(ComplexEventChunk complexEventChunk) Process the handed StreamEvent
void	setFindableProcessor(FindableProcessor findableProcessor)
void	setFinder(Finder finder)
void	setJoinLock(LockWrapper joinLockWrapper)
void	setNextProcessor(Processor processor) Set next processor element in processor chain
void	setStateEventPool(StateEventPool stateEventPool)
void	setToLast(Processor processor) Set as the last element of the processor chain
void	setTrigger(boolean trigger)

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinProcessor

public JoinProcessor(boolean leftJoinProcessor,
                     boolean preJoinProcessor,
                     boolean outerJoinProcessor,
                     int matchingStreamIndex)

Method Detail

process

public void process(ComplexEventChunk complexEventChunk)

Process the handed StreamEvent

Specified by:

process in interface Processor

Parameters:

complexEventChunk - event chunk to be processed

getNextProcessor

public Processor getNextProcessor()

Get next processor element in the processor chain. Processed event should be sent to next processor

Specified by:

getNextProcessor in interface Processor

Returns:

Next Processor

setNextProcessor

public void setNextProcessor(Processor processor)

Set next processor element in processor chain

Specified by:

setNextProcessor in interface Processor

Parameters:

processor - Processor to be set as next element of processor chain

setJoinLock

public void setJoinLock(LockWrapper joinLockWrapper)

setToLast

public void setToLast(Processor processor)

Set as the last element of the processor chain

Specified by:

setToLast in interface Processor

Parameters:

processor - Last processor in the chain

cloneProcessor

public Processor cloneProcessor(String key)

Clone a copy of processor

Specified by:

cloneProcessor in interface Processor

Parameters:

key - partition key

Returns:

Cloned Processor

setFindableProcessor

public void setFindableProcessor(FindableProcessor findableProcessor)

setFinder

public void setFinder(Finder finder)

setTrigger

public void setTrigger(boolean trigger)

setStateEventPool

public void setStateEventPool(StateEventPool stateEventPool)

joinEventBuilder

public StateEvent joinEventBuilder(StreamEvent leftStream,
                                   StreamEvent rightStream,
                                   ComplexEvent.Type type)

Join the given two event streams

Parameters:

leftStream - event left stream

rightStream - event right stream

Returns:

StateEvent state event