/*
* *************************************************************************************
* 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.core.context.stmt;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.collection.ArrayWrap;
import com.espertech.esper.core.context.stmt.AIRegistryPrior;
import com.espertech.esper.epl.expression.ExprEvaluator;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.ExprPriorEvalStrategy;
public class AIRegistryPriorMultiPerm implements AIRegistryPrior, ExprPriorEvalStrategy {
private final ArrayWrap<ExprPriorEvalStrategy> strategies;
private int count;
public AIRegistryPriorMultiPerm() {
strategies = new ArrayWrap<ExprPriorEvalStrategy>(ExprPriorEvalStrategy.class, 10);
}
public void assignService(int num, ExprPriorEvalStrategy value) {
if (num > strategies.getArray().length - 1) {
strategies.expand(100);
}
strategies.getArray()[num] = value;
count++;
}
public void deassignService(int num) {
strategies.getArray()[num] = null;
count--;
}
public int getAgentInstanceCount() {
return count;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext, int streamNumber, ExprEvaluator evaluator, int constantIndexNumber) {
int agentInstanceId = exprEvaluatorContext.getAgentInstanceIds()[0];
ExprPriorEvalStrategy strategy = strategies.getArray()[agentInstanceId];
return strategy.evaluate(eventsPerStream, isNewData, exprEvaluatorContext, streamNumber, evaluator, constantIndexNumber);
}
}