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

Class AbsentStreamPreStateProcessor

java.lang.Object

org.wso2.siddhi.core.query.input.stream.state.StreamPreStateProcessor

org.wso2.siddhi.core.query.input.stream.state.AbsentStreamPreStateProcessor

All Implemented Interfaces:

AbsentPreStateProcessor, PreStateProcessor, Processor, SchedulingProcessor, EternalReferencedHolder, Snapshotable

public class AbsentStreamPreStateProcessor
extends StreamPreStateProcessor
implements AbsentPreStateProcessor

Pre processor of not operator.

Field Summary

Fields inherited from class org.wso2.siddhi.core.query.input.stream.state.StreamPreStateProcessor

currentStateEventChunk, elementId, isStartState, newAndEveryStateEventList, nextProcessor, pendingStateEventList, queryName, siddhiAppContext, stateChanged, stateEventCloner, stateEventPool, stateId, stateType, streamEventCloner, streamEventPool, thisLastProcessor, thisStatePostProcessor, withinStates

Constructor Summary

Constructors

Constructor and Description
AbsentStreamPreStateProcessor(org.wso2.siddhi.query.api.execution.query.input.stream.StateInputStream.Type stateType, List<Map.Entry<Long,Set<Integer>>> withinStates, org.wso2.siddhi.query.api.expression.constant.TimeConstant waitingTime) Construct an AbsentStreamPreStateProcessor object.

Method Summary

Modifier and Type	Method and Description
void	addState(StateEvent stateEvent)
PreStateProcessor	cloneProcessor(String key) Clone a copy of processor
Scheduler	getScheduler()
void	process(ComplexEventChunk complexEventChunk) Process the handed StreamEvent
ComplexEventChunk<StateEvent>	processAndReturn(ComplexEventChunk complexEventChunk)
void	resetState()
void	setScheduler(Scheduler scheduler)
void	start() This will be called only once and this can be used to acquire required resources for the processing element.
void	stop() This will be called only once and this can be used to release the acquired resources for processing.
void	updateLastArrivalTime(long timestamp) Update the timestamp of the event arrived to this processor and met the filter conditions.

Methods inherited from class org.wso2.siddhi.core.query.input.stream.state.StreamPreStateProcessor

addEveryState, cloneProperties, currentState, getElementId, getNextProcessor, getStateId, getThisLastProcessor, getThisStatePostProcessor, init, init, isExpired, process, restoreState, setNextProcessor, setStartState, setStateEventCloner, setStateEventPool, setStateId, setStreamEventCloner, setStreamEventPool, setThisLastProcessor, setThisStatePostProcessor, setToLast, stateChanged, updateState

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.wso2.siddhi.core.query.processor.Processor

getNextProcessor, setNextProcessor, setToLast

Constructor Detail

AbsentStreamPreStateProcessor

public AbsentStreamPreStateProcessor(org.wso2.siddhi.query.api.execution.query.input.stream.StateInputStream.Type stateType,
                                     List<Map.Entry<Long,Set<Integer>>> withinStates,
                                     org.wso2.siddhi.query.api.expression.constant.TimeConstant waitingTime)

Construct an AbsentStreamPreStateProcessor object.

Parameters:

stateType - PATTERN or SEQUENCE

withinStates - the time defined by 'within' keyword

waitingTime - the waiting time defined by 'for' keyword

Method Detail

updateLastArrivalTime

public void updateLastArrivalTime(long timestamp)

Description copied from interface: AbsentPreStateProcessor

Update the timestamp of the event arrived to this processor and met the filter conditions.

Specified by:

updateLastArrivalTime in interface AbsentPreStateProcessor

Parameters:

timestamp - the timestamp if the event

addState

public void addState(StateEvent stateEvent)

Specified by:

addState in interface PreStateProcessor

Overrides:

addState in class StreamPreStateProcessor

resetState

public void resetState()

Specified by:

resetState in interface PreStateProcessor

Overrides:

resetState in class StreamPreStateProcessor

process

public void process(ComplexEventChunk complexEventChunk)

Description copied from class: StreamPreStateProcessor

Process the handed StreamEvent

Specified by:

process in interface Processor

Overrides:

process in class StreamPreStateProcessor

Parameters:

complexEventChunk - event chunk to be processed

processAndReturn

public ComplexEventChunk<StateEvent> processAndReturn(ComplexEventChunk complexEventChunk)

Specified by:

processAndReturn in interface PreStateProcessor

Overrides:

processAndReturn in class StreamPreStateProcessor

setScheduler

public void setScheduler(Scheduler scheduler)

Specified by:

setScheduler in interface SchedulingProcessor

getScheduler

public Scheduler getScheduler()

Specified by:

getScheduler in interface SchedulingProcessor

cloneProcessor

public PreStateProcessor cloneProcessor(String key)

Description copied from class: StreamPreStateProcessor

Clone a copy of processor

Specified by:

cloneProcessor in interface PreStateProcessor

Specified by:

cloneProcessor in interface Processor

Overrides:

cloneProcessor in class StreamPreStateProcessor

Parameters:

key - partition key

Returns:

clone of StreamPreStateProcessor

start

public void start()

Description copied from interface: EternalReferencedHolder

This will be called only once and this can be used to acquire required resources for the processing element. This will be called after initializing the system and before starting to process the events.

Specified by:

start in interface EternalReferencedHolder

stop

public void stop()

Description copied from interface: EternalReferencedHolder

This will be called only once and this can be used to release the acquired resources for processing. This will be called before shutting down the system.

Specified by:

stop in interface EternalReferencedHolder