/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
* *************************************************************************************
*/
package com.espertech.esper.epl.agg.service;
import com.espertech.esper.core.context.util.AgentInstanceContext;
import com.espertech.esper.epl.agg.access.AggregationAccess;
import com.espertech.esper.epl.agg.access.AggregationAccessUtil;
import com.espertech.esper.epl.agg.access.AggregationAccessorSlotPair;
import com.espertech.esper.epl.core.MethodResolutionService;
/**
* Aggregation service for use when only first/last/window aggregation functions are used an none other.
*/
public class AggSvcGroupAllAccessOnlyFactory implements AggregationServiceFactory
{
protected final AggregationAccessorSlotPair[] accessors;
protected final int[] streams;
protected final boolean isJoin;
public AggSvcGroupAllAccessOnlyFactory(AggregationAccessorSlotPair[] accessors, int[] streams, boolean join) {
this.accessors = accessors;
this.streams = streams;
isJoin = join;
}
public AggregationService makeService(AgentInstanceContext agentInstanceContext, MethodResolutionService methodResolutionService) {
AggregationAccess[] accesses = AggregationAccessUtil.getNewAccesses(agentInstanceContext.getAgentInstanceId(), isJoin, streams, methodResolutionService, null);
return new AggSvcGroupAllAccessOnlyImpl(accessors, accesses);
}
}