/**************************************************************************************
* 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.filter;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.ExprNode;
import com.espertech.esper.epl.variable.VariableService;
public class ExprNodeAdapterMultiStreamNoTLStmtLock extends ExprNodeAdapterMultiStreamNoTL
{
public ExprNodeAdapterMultiStreamNoTLStmtLock(String statementName, ExprNode exprNode, ExprEvaluatorContext evaluatorContext, VariableService variableService, EventBean[] prototype) {
super(statementName, exprNode, evaluatorContext, variableService, prototype);
}
@Override
protected boolean evaluatePerStream(EventBean[] eventsPerStream) {
evaluatorContext.getAgentInstanceLock().acquireWriteLock(null);
try {
return super.evaluatePerStream(eventsPerStream);
}
finally {
evaluatorContext.getAgentInstanceLock().releaseWriteLock(null);
}
}
}