com.espertech.esper.epl.core.resultset.rowpergroup

Class ResultSetProcessorRowPerGroupImpl

java.lang.Object

com.espertech.esper.epl.core.resultset.rowpergroup.ResultSetProcessorRowPerGroupImpl

All Implemented Interfaces:

AggregationRowRemovedCallback, ResultSetProcessor, ResultSetProcessorRowPerGroup, StopCallback

Direct Known Subclasses:

ResultSetProcessorRowPerGroupUnbound

public class ResultSetProcessorRowPerGroupImpl
extends java.lang.Object
implements ResultSetProcessorRowPerGroup

Result set processor for the fully-grouped case: there is a group-by and all non-aggregation event properties in the select clause are listed in the group by, and there are aggregation functions.

Produces one row for each group that changed (and not one row per event). Computes MultiKey group-by keys for each event and uses a set of the group-by keys to generate the result rows, using the first (old or new, anyone) event for each distinct group-by key.

Field Summary

Fields

Modifier and Type	Field and Description
protected AgentInstanceContext	agentInstanceContext
protected AggregationService	aggregationService
protected OrderByProcessor	orderByProcessor
protected ResultSetProcessorRowPerGroupFactory	prototype
protected SelectExprProcessor	selectExprProcessor

Method Summary

Modifier and Type	Method and Description
void	acceptHelperVisitor(ResultSetProcessorOutputHelperVisitor visitor)
static void	acceptHelperVisitorCodegen(CodegenMethodNode method, CodegenInstanceAux instance)
void	applyJoinResult(java.util.Set<MultiKey<EventBean>> newEvents, java.util.Set<MultiKey<EventBean>> oldEvents)
static void	applyJoinResultCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
void	applyViewResult(EventBean[] newData, EventBean[] oldData)
static void	applyViewResultCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
void	clear() Clear out current state.
static void	clearMethodCodegen(CodegenMethodNode method)
UniformPair<EventBean[]>	continueOutputLimitedLastAllNonBufferedJoin(boolean isSynthesize)
static void	continueOutputLimitedLastAllNonBufferedJoinCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenMethodNode method)
UniformPair<EventBean[]>	continueOutputLimitedLastAllNonBufferedView(boolean isSynthesize)
static void	continueOutputLimitedLastAllNonBufferedViewCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenMethodNode method)
boolean	evaluateHavingClause(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext)
java.lang.Object	generateGroupKeySingle(EventBean[] eventsPerStream, boolean isNewData)
void	generateOutputBatchedArrFromIterator(boolean join, java.util.Iterator<java.util.Map.Entry<java.lang.Object,EventBean[]>> keysAndEvents, boolean isNewData, boolean isSynthesize, java.util.List<EventBean> resultEvents, java.util.List<java.lang.Object> optSortKeys)
EventBean	generateOutputBatchedNoSortWMap(boolean join, java.lang.Object mk, EventBean[] eventsPerStream, boolean isNewData, boolean isSynthesize)
ExprEvaluatorContext	getAgentInstanceContext()
AggregationService	getAggregationService()
java.util.Iterator<EventBean>	getIterator(java.util.Set<MultiKey<EventBean>> joinSet) Returns the iterator for iterating over a join-result.
java.util.Iterator<EventBean>	getIterator(Viewable parent) Returns the iterator implementing the group-by and aggregation and order-by logic specific to each case of use of these construct.
static void	getIteratorJoinCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
static void	getIteratorViewCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
ExprEvaluator	getOptionalHavingNode() Returns the optional having expression.
EventType	getResultEventType() Returns the event type of processed results.
SelectExprProcessor	getSelectExprProcessor() Returns the select expression processor
boolean	hasHavingClause()
boolean	isSelectRStream()
UniformPair<EventBean[]>	processJoinResult(java.util.Set<MultiKey<EventBean>> newEvents, java.util.Set<MultiKey<EventBean>> oldEvents, boolean isSynthesize) For use by joins posting their result, process the event rows that are entered and removed (new and old events).
static void	processJoinResultCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
UniformPair<EventBean[]>	processOutputLimitedJoin(java.util.List<UniformPair<java.util.Set<MultiKey<EventBean>>>> joinEventsSet, boolean generateSynthetic) Processes batched events in case of output-rate limiting.
static void	processOutputLimitedJoinCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
void	processOutputLimitedLastAllNonBufferedJoin(java.util.Set<MultiKey<EventBean>> newData, java.util.Set<MultiKey<EventBean>> oldData, boolean isGenerateSynthetic)
static void	processOutputLimitedLastAllNonBufferedJoinCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
void	processOutputLimitedLastAllNonBufferedView(EventBean[] newData, EventBean[] oldData, boolean isGenerateSynthetic)
static void	processOutputLimitedLastAllNonBufferedViewCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
UniformPair<EventBean[]>	processOutputLimitedView(java.util.List<UniformPair<EventBean[]>> viewEventsList, boolean generateSynthetic) Processes batched events in case of output-rate limiting.
static void	processOutputLimitedViewCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
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).
static void	processViewResultCodegen(ResultSetProcessorRowPerGroupForge forge, CodegenClassScope classScope, CodegenMethodNode method, CodegenInstanceAux instance)
void	removedAggregationGroupKey(java.lang.Object key)
void	setAgentInstanceContext(AgentInstanceContext agentInstanceContext)
void	stop() Stops the underlying resources.
static void	stopMethodCodegenBound(CodegenMethodNode method, CodegenInstanceAux instance)

Methods inherited from class java.lang.Object

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

Field Detail

prototype

protected final ResultSetProcessorRowPerGroupFactory prototype

selectExprProcessor

protected final SelectExprProcessor selectExprProcessor

orderByProcessor

protected final OrderByProcessor orderByProcessor

aggregationService

protected final AggregationService aggregationService

agentInstanceContext

protected AgentInstanceContext agentInstanceContext

Method Detail

setAgentInstanceContext

public void setAgentInstanceContext(AgentInstanceContext agentInstanceContext)

Specified by:

setAgentInstanceContext in interface ResultSetProcessor

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.

applyViewResult

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

Specified by:

applyViewResult in interface ResultSetProcessor

applyViewResultCodegen

public static void applyViewResultCodegen(ResultSetProcessorRowPerGroupForge forge,
                                          CodegenClassScope classScope,
                                          CodegenMethodNode method,
                                          CodegenInstanceAux instance)

applyJoinResult

public void applyJoinResult(java.util.Set<MultiKey<EventBean>> newEvents,
                            java.util.Set<MultiKey<EventBean>> oldEvents)

Specified by:

applyJoinResult in interface ResultSetProcessor

applyJoinResultCodegen

public static void applyJoinResultCodegen(ResultSetProcessorRowPerGroupForge forge,
                                          CodegenClassScope classScope,
                                          CodegenMethodNode method,
                                          CodegenInstanceAux instance)

processJoinResult

public UniformPair<EventBean[]> processJoinResult(java.util.Set<MultiKey<EventBean>> newEvents,
                                                  java.util.Set<MultiKey<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

processJoinResultCodegen

public static void processJoinResultCodegen(ResultSetProcessorRowPerGroupForge forge,
                                            CodegenClassScope classScope,
                                            CodegenMethodNode method,
                                            CodegenInstanceAux instance)

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

processViewResultCodegen

public static void processViewResultCodegen(ResultSetProcessorRowPerGroupForge forge,
                                            CodegenClassScope classScope,
                                            CodegenMethodNode method,
                                            CodegenInstanceAux instance)

generateOutputBatchedArrFromIterator

public void generateOutputBatchedArrFromIterator(boolean join,
                                                 java.util.Iterator<java.util.Map.Entry<java.lang.Object,EventBean[]>> keysAndEvents,
                                                 boolean isNewData,
                                                 boolean isSynthesize,
                                                 java.util.List<EventBean> resultEvents,
                                                 java.util.List<java.lang.Object> optSortKeys)

Specified by:

generateOutputBatchedArrFromIterator in interface ResultSetProcessorRowPerGroup

generateOutputBatchedNoSortWMap

public EventBean generateOutputBatchedNoSortWMap(boolean join,
                                                 java.lang.Object mk,
                                                 EventBean[] eventsPerStream,
                                                 boolean isNewData,
                                                 boolean isSynthesize)

Specified by:

generateOutputBatchedNoSortWMap in interface ResultSetProcessorRowPerGroup

getOptionalHavingNode

public ExprEvaluator getOptionalHavingNode()

Returns the optional having expression.

Returns:

having expression node

getSelectExprProcessor

public SelectExprProcessor getSelectExprProcessor()

Returns the select expression processor

Specified by:

getSelectExprProcessor in interface ResultSetProcessorRowPerGroup

Returns:

select processor.

getIterator

public java.util.Iterator<EventBean> getIterator(Viewable parent)

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:

parent - is the parent view iterator

Returns:

event iterator

getIteratorViewCodegen

public static void getIteratorViewCodegen(ResultSetProcessorRowPerGroupForge forge,
                                          CodegenClassScope classScope,
                                          CodegenMethodNode method,
                                          CodegenInstanceAux instance)

getIterator

public java.util.Iterator<EventBean> getIterator(java.util.Set<MultiKey<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

getIteratorJoinCodegen

public static void getIteratorJoinCodegen(ResultSetProcessorRowPerGroupForge forge,
                                          CodegenClassScope classScope,
                                          CodegenMethodNode method,
                                          CodegenInstanceAux instance)

clear

public void clear()

Description copied from interface: ResultSetProcessor

Clear out current state.

Specified by:

clear in interface ResultSetProcessor

clearMethodCodegen

public static void clearMethodCodegen(CodegenMethodNode method)

processOutputLimitedJoin

public UniformPair<EventBean[]> processOutputLimitedJoin(java.util.List<UniformPair<java.util.Set<MultiKey<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

processOutputLimitedJoinCodegen

public static void processOutputLimitedJoinCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                   CodegenClassScope classScope,
                                                   CodegenMethodNode method,
                                                   CodegenInstanceAux instance)

processOutputLimitedView

public UniformPair<EventBean[]> processOutputLimitedView(java.util.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

processOutputLimitedViewCodegen

public static void processOutputLimitedViewCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                   CodegenClassScope classScope,
                                                   CodegenMethodNode method,
                                                   CodegenInstanceAux instance)

removedAggregationGroupKey

public void removedAggregationGroupKey(java.lang.Object key)

Specified by:

removedAggregationGroupKey in interface AggregationRowRemovedCallback

generateGroupKeySingle

public java.lang.Object generateGroupKeySingle(EventBean[] eventsPerStream,
                                               boolean isNewData)

Specified by:

generateGroupKeySingle in interface ResultSetProcessorRowPerGroup

processOutputLimitedLastAllNonBufferedView

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

Specified by:

processOutputLimitedLastAllNonBufferedView in interface ResultSetProcessor

processOutputLimitedLastAllNonBufferedViewCodegen

public static void processOutputLimitedLastAllNonBufferedViewCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                                     CodegenClassScope classScope,
                                                                     CodegenMethodNode method,
                                                                     CodegenInstanceAux instance)

processOutputLimitedLastAllNonBufferedJoin

public void processOutputLimitedLastAllNonBufferedJoin(java.util.Set<MultiKey<EventBean>> newData,
                                                       java.util.Set<MultiKey<EventBean>> oldData,
                                                       boolean isGenerateSynthetic)

Specified by:

processOutputLimitedLastAllNonBufferedJoin in interface ResultSetProcessor

processOutputLimitedLastAllNonBufferedJoinCodegen

public static void processOutputLimitedLastAllNonBufferedJoinCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                                     CodegenClassScope classScope,
                                                                     CodegenMethodNode method,
                                                                     CodegenInstanceAux instance)

continueOutputLimitedLastAllNonBufferedView

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

Specified by:

continueOutputLimitedLastAllNonBufferedView in interface ResultSetProcessor

continueOutputLimitedLastAllNonBufferedViewCodegen

public static void continueOutputLimitedLastAllNonBufferedViewCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                                      CodegenMethodNode method)

continueOutputLimitedLastAllNonBufferedJoin

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

Specified by:

continueOutputLimitedLastAllNonBufferedJoin in interface ResultSetProcessor

continueOutputLimitedLastAllNonBufferedJoinCodegen

public static void continueOutputLimitedLastAllNonBufferedJoinCodegen(ResultSetProcessorRowPerGroupForge forge,
                                                                      CodegenMethodNode method)

stop

public void stop()

Description copied from interface: StopCallback

Stops the underlying resources.

Specified by:

stop in interface StopCallback

stopMethodCodegenBound

public static void stopMethodCodegenBound(CodegenMethodNode method,
                                          CodegenInstanceAux instance)

getAggregationService

public AggregationService getAggregationService()

Specified by:

getAggregationService in interface ResultSetProcessorRowPerGroup

acceptHelperVisitor

public void acceptHelperVisitor(ResultSetProcessorOutputHelperVisitor visitor)

Specified by:

acceptHelperVisitor in interface ResultSetProcessor

acceptHelperVisitorCodegen

public static void acceptHelperVisitorCodegen(CodegenMethodNode method,
                                              CodegenInstanceAux instance)

hasHavingClause

public boolean hasHavingClause()

Specified by:

hasHavingClause in interface ResultSetProcessorRowPerGroup

evaluateHavingClause

public boolean evaluateHavingClause(EventBean[] eventsPerStream,
                                    boolean isNewData,
                                    ExprEvaluatorContext exprEvaluatorContext)

Specified by:

evaluateHavingClause in interface ResultSetProcessorRowPerGroup

isSelectRStream

public boolean isSelectRStream()

Specified by:

isSelectRStream in interface ResultSetProcessorRowPerGroup

getAgentInstanceContext

public ExprEvaluatorContext getAgentInstanceContext()

Specified by:

getAgentInstanceContext in interface ResultSetProcessorRowPerGroup