/*
* *************************************************************************************
* 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.epl.expression.ExprEvaluator;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.ExprPriorEvalStrategy;
import java.util.HashMap;
import java.util.Map;
public class AIRegistryPriorMap implements AIRegistryPrior, ExprPriorEvalStrategy {
private final Map<Integer, ExprPriorEvalStrategy> strategies;
public AIRegistryPriorMap() {
strategies = new HashMap<Integer, ExprPriorEvalStrategy>();
}
public void assignService(int num, ExprPriorEvalStrategy value) {
strategies.put(num, value);
}
public void deassignService(int num) {
strategies.remove(num);
}
public int getAgentInstanceCount() {
return strategies.size();
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext, int streamNumber, ExprEvaluator evaluator, int constantIndexNumber) {
int agentInstanceId = exprEvaluatorContext.getAgentInstanceId();
ExprPriorEvalStrategy strategy = strategies.get(agentInstanceId);
return strategy.evaluate(eventsPerStream, isNewData, exprEvaluatorContext, streamNumber, evaluator, constantIndexNumber);
}
}