/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* 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.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.rowregex.RegexExprPreviousEvalStrategy;
import com.espertech.esper.rowregex.RegexPartitionStateRandomAccess;
public class AIRegistryMatchRecognizePreviousSingle implements AIRegistryMatchRecognizePrevious, RegexExprPreviousEvalStrategy {
private RegexExprPreviousEvalStrategy strategy;
public void assignService(int num, RegexExprPreviousEvalStrategy value) {
this.strategy = value;
}
public void deassignService(int num) {
this.strategy = null;
}
public int getAgentInstanceCount() {
return strategy == null ? 0 : 1;
}
public RegexPartitionStateRandomAccess getAccess(ExprEvaluatorContext exprEvaluatorContext) {
return strategy.getAccess(exprEvaluatorContext);
}
}