/**************************************************************************************
* 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.epl.declexpr;
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.ExprValidationException;
import java.util.Map;
public class ExprDeclaredEvalConstant implements ExprEvaluator {
private final Class returnType;
private final Object value;
public ExprDeclaredEvalConstant(Class returnType, Object value) {
this.returnType = returnType;
this.value = value;
}
public Class getType() {
return returnType;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
return value;
}
public Map<String, Object> getEventType() throws ExprValidationException {
return null;
}
}