/**************************************************************************************
* 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;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class ExprNodeAdapterBaseVariables extends ExprNodeAdapterBase
{
private static final Log log = LogFactory.getLog(ExprNodeAdapterBaseVariables.class);
protected final VariableService variableService;
public ExprNodeAdapterBaseVariables(String statementName, ExprNode exprNode, ExprEvaluatorContext evaluatorContext, VariableService variableService) {
super(statementName, exprNode, evaluatorContext);
this.variableService = variableService;
}
@Override
public boolean evaluate(EventBean theEvent)
{
variableService.setLocalVersion();
return evaluatePerStream(new EventBean[] {theEvent});
}
}