/**************************************************************************************
* 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.EventPropertyGetter;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import com.espertech.esper.pattern.MatchedEventMap;
import com.espertech.esper.util.SimpleNumberCoercer;
/**
* Event property value in a list of values following an in-keyword.
*/
public class InSetOfValuesContextProp implements FilterSpecParamInValue
{
private static final long serialVersionUID = 1193129743441752016L;
private final String propertyName;
private transient final EventPropertyGetter getter;
private transient final SimpleNumberCoercer numberCoercer;
public InSetOfValuesContextProp(String propertyName, EventPropertyGetter getter, SimpleNumberCoercer coercer) {
this.propertyName = propertyName;
this.getter = getter;
this.numberCoercer = coercer;
}
public Object getFilterValue(MatchedEventMap matchedEvents, ExprEvaluatorContext evaluatorContext) {
if (evaluatorContext.getContextProperties() == null) {
return null;
}
Object result = getter.get(evaluatorContext.getContextProperties());
if (numberCoercer == null) {
return result;
}
return numberCoercer.coerceBoxed((Number) result);
}
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
InSetOfValuesContextProp that = (InSetOfValuesContextProp) o;
if (!propertyName.equals(that.propertyName)) return false;
return true;
}
public int hashCode() {
return propertyName.hashCode();
}
}