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 java.lang.Object
implements AggregationServiceFactory

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

Constructor Summary

AggSvcGroupByAccessOnlyFactory(AggregationAccessorSlotPair[] accessors, AggregationStateFactory[] accessAggSpecs, java.lang.Object groupKeyBinding, boolean isJoin)
Ctor.

Method Summary

AggregationService

makeService(AgentInstanceContext agentInstanceContext, MethodResolutionService methodResolutionService)

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,
                                      java.lang.Object groupKeyBinding,
                                      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,
                                      MethodResolutionService methodResolutionService)

Specified by:

makeService in interface AggregationServiceFactory