Package com.espertech.esper.common.internal.epl.resultset.handthru

Class ResultSetProcessorHandThroughImpl

java.lang.Object

com.espertech.esper.common.internal.epl.resultset.handthru.ResultSetProcessorHandThroughImpl

All Implemented Interfaces:

ResultSetProcessor, StopCallback

public class ResultSetProcessorHandThroughImpl
extends Object
implements ResultSetProcessor

Field Summary

Fields inherited from interface com.espertech.esper.common.internal.epl.resultset.core.ResultSetProcessor

EPTYPE, EPTYPE_PROCESSORTYPE

Constructor Summary

Constructors

Constructor	Description
ResultSetProcessorHandThroughImpl(ResultSetProcessorHandThroughFactory factory, ExprEvaluatorContext exprEvaluatorContext)

Method Summary

Modifier and Type	Method	Description
void	acceptHelperVisitor(ResultSetProcessorOutputHelperVisitor visitor)
void	applyJoinResult(Set<MultiKeyArrayOfKeys<EventBean>> newEvents, Set<MultiKeyArrayOfKeys<EventBean>> oldEvents)
void	applyViewResult(EventBean[] newData, EventBean[] oldData)
void	clear()	Clear out current state.
UniformPair<EventBean[]>	continueOutputLimitedLastAllNonBufferedJoin(boolean isSynthesize)
UniformPair<EventBean[]>	continueOutputLimitedLastAllNonBufferedView(boolean isSynthesize)
Iterator<EventBean>	getIterator(Viewable viewable)	Returns the iterator implementing the group-by and aggregation and order-by logic specific to each case of use of these construct.
Iterator<EventBean>	getIterator(Set<MultiKeyArrayOfKeys<EventBean>> joinSet)	Returns the iterator for iterating over a join-result.
EventType	getResultEventType()	Returns the event type of processed results.
UniformPair<EventBean[]>	processJoinResult(Set<MultiKeyArrayOfKeys<EventBean>> newEvents, Set<MultiKeyArrayOfKeys<EventBean>> oldEvents, boolean isSynthesize)	For use by joins posting their result, process the event rows that are entered and removed (new and old events).
UniformPair<EventBean[]>	processOutputLimitedJoin(List<UniformPair<Set<MultiKeyArrayOfKeys<EventBean>>>> joinEventsSet, boolean generateSynthetic)	Processes batched events in case of output-rate limiting.
void	processOutputLimitedLastAllNonBufferedJoin(Set<MultiKeyArrayOfKeys<EventBean>> newEvents, Set<MultiKeyArrayOfKeys<EventBean>> oldEvents, boolean isGenerateSynthetic)
void	processOutputLimitedLastAllNonBufferedView(EventBean[] newData, EventBean[] oldData, boolean isSynthesize)
UniformPair<EventBean[]>	processOutputLimitedView(List<UniformPair<EventBean[]>> viewEventsList, boolean generateSynthetic)	Processes batched events in case of output-rate limiting.
UniformPair<EventBean[]>	processViewResult(EventBean[] newData, EventBean[] oldData, boolean isSynthesize)	For use by views posting their result, process the event rows that are entered and removed (new and old events).
void	setExprEvaluatorContext(ExprEvaluatorContext context)
void	stop()	Stops the underlying resources.

Methods inherited from class java.lang.Object

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

Constructor Details

ResultSetProcessorHandThroughImpl

public ResultSetProcessorHandThroughImpl(ResultSetProcessorHandThroughFactory factory,
 ExprEvaluatorContext exprEvaluatorContext)

Method Details

getResultEventType

public EventType getResultEventType()

Description copied from interface: ResultSetProcessor

Returns the event type of processed results.

Specified by:

getResultEventType in interface ResultSetProcessor

Returns:

event type of the resulting events posted by the processor.

processViewResult

public UniformPair<EventBean[]> processViewResult(EventBean[] newData,
 EventBean[] oldData,
 boolean isSynthesize)

Description copied from interface: ResultSetProcessor

For use by views posting their result, process the event rows that are entered and removed (new and old events). Processes according to select-clauses, group-by clauses and having-clauses and returns new events and old events as specified.

Specified by:

processViewResult in interface ResultSetProcessor

Parameters:

newData - - new events posted by view

oldData - - old events posted by view

isSynthesize - - set to true to indicate that synthetic events are required for an iterator result set

Returns:

pair of new events and old events

processJoinResult

public UniformPair<EventBean[]> processJoinResult(Set<MultiKeyArrayOfKeys<EventBean>> newEvents,
 Set<MultiKeyArrayOfKeys<EventBean>> oldEvents,
 boolean isSynthesize)

Description copied from interface: ResultSetProcessor

For use by joins posting their result, process the event rows that are entered and removed (new and old events). Processes according to select-clauses, group-by clauses and having-clauses and returns new events and old events as specified.

Specified by:

processJoinResult in interface ResultSetProcessor

Parameters:

newEvents - - new events posted by join

oldEvents - - old events posted by join

isSynthesize - - set to true to indicate that synthetic events are required for an iterator result set

Returns:

pair of new events and old events

getIterator

public Iterator<EventBean> getIterator(Viewable viewable)

Description copied from interface: ResultSetProcessor

Returns the iterator implementing the group-by and aggregation and order-by logic specific to each case of use of these construct.

Specified by:

getIterator in interface ResultSetProcessor

Parameters:

viewable - is the parent view iterator

Returns:

event iterator

getIterator

public Iterator<EventBean> getIterator(Set<MultiKeyArrayOfKeys<EventBean>> joinSet)

Description copied from interface: ResultSetProcessor

Returns the iterator for iterating over a join-result.

Specified by:

getIterator in interface ResultSetProcessor

Parameters:

joinSet - is the join result set

Returns:

iterator over join results

clear

public void clear()

Description copied from interface: ResultSetProcessor

Clear out current state.

Specified by:

clear in interface ResultSetProcessor

stop

public void stop()

Description copied from interface: StopCallback

Stops the underlying resources.

Specified by:

stop in interface StopCallback

processOutputLimitedJoin

public UniformPair<EventBean[]> processOutputLimitedJoin(List<UniformPair<Set<MultiKeyArrayOfKeys<EventBean>>>> joinEventsSet,
 boolean generateSynthetic)

Description copied from interface: ResultSetProcessor

Processes batched events in case of output-rate limiting.

Specified by:

processOutputLimitedJoin in interface ResultSetProcessor

Parameters:

joinEventsSet - the join results

generateSynthetic - flag to indicate whether synthetic events must be generated

Returns:

results for dispatch

processOutputLimitedView

public UniformPair<EventBean[]> processOutputLimitedView(List<UniformPair<EventBean[]>> viewEventsList,
 boolean generateSynthetic)

Description copied from interface: ResultSetProcessor

Processes batched events in case of output-rate limiting.

Specified by:

processOutputLimitedView in interface ResultSetProcessor

Parameters:

viewEventsList - the view results

generateSynthetic - flag to indicate whether synthetic events must be generated

Returns:

results for dispatch

setExprEvaluatorContext

public void setExprEvaluatorContext(ExprEvaluatorContext context)

Specified by:

setExprEvaluatorContext in interface ResultSetProcessor

applyViewResult

public void applyViewResult(EventBean[] newData,
 EventBean[] oldData)

Specified by:

applyViewResult in interface ResultSetProcessor

applyJoinResult

public void applyJoinResult(Set<MultiKeyArrayOfKeys<EventBean>> newEvents,
 Set<MultiKeyArrayOfKeys<EventBean>> oldEvents)

Specified by:

applyJoinResult in interface ResultSetProcessor

processOutputLimitedLastAllNonBufferedView

public void processOutputLimitedLastAllNonBufferedView(EventBean[] newData,
 EventBean[] oldData,
 boolean isSynthesize)

Specified by:

processOutputLimitedLastAllNonBufferedView in interface ResultSetProcessor

processOutputLimitedLastAllNonBufferedJoin

public void processOutputLimitedLastAllNonBufferedJoin(Set<MultiKeyArrayOfKeys<EventBean>> newEvents,
 Set<MultiKeyArrayOfKeys<EventBean>> oldEvents,
 boolean isGenerateSynthetic)

Specified by:

processOutputLimitedLastAllNonBufferedJoin in interface ResultSetProcessor

continueOutputLimitedLastAllNonBufferedView

public UniformPair<EventBean[]> continueOutputLimitedLastAllNonBufferedView(boolean isSynthesize)

Specified by:

continueOutputLimitedLastAllNonBufferedView in interface ResultSetProcessor

continueOutputLimitedLastAllNonBufferedJoin

public UniformPair<EventBean[]> continueOutputLimitedLastAllNonBufferedJoin(boolean isSynthesize)

Specified by:

continueOutputLimitedLastAllNonBufferedJoin in interface ResultSetProcessor

acceptHelperVisitor

public void acceptHelperVisitor(ResultSetProcessorOutputHelperVisitor visitor)

Specified by:

acceptHelperVisitor in interface ResultSetProcessor