com.espertech.esper.epl.agg.service

Class AggSvcGroupByAccessOnlyFactory

java.lang.Object

com.espertech.esper.epl.agg.service.AggSvcGroupByAccessOnlyFactory

All Implemented Interfaces:

AggregationServiceFactory

public class AggSvcGroupByAccessOnlyFactory
extends Object
implements AggregationServiceFactory

Aggregation service for use when only first/last/window aggregation functions are used an none other.

Constructor Summary

Constructors

Constructor and Description
AggSvcGroupByAccessOnlyFactory(AggregationAccessorSlotPair[] accessors, AggregationStateFactory[] accessAggSpecs, boolean isJoin) Ctor.

Method Summary

Modifier and Type	Method and Description
AggregationService	makeService(AgentInstanceContext agentInstanceContext, EngineImportService engineImportService, boolean isSubquery, Integer subqueryNumber)

Methods inherited from class java.lang.Object

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

Constructor Detail

AggSvcGroupByAccessOnlyFactory

public AggSvcGroupByAccessOnlyFactory(AggregationAccessorSlotPair[] accessors,
                                      AggregationStateFactory[] accessAggSpecs,
                                      boolean isJoin)

Ctor.

Parameters:

accessors - accessor definitions

accessAggSpecs - access aggregations

isJoin - true for join, false for single-stream

Method Detail

makeService

public AggregationService makeService(AgentInstanceContext agentInstanceContext,
                                      EngineImportService engineImportService,
                                      boolean isSubquery,
                                      Integer subqueryNumber)

Specified by:

makeService in interface AggregationServiceFactory