/**************************************************************************************
* 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.client;
/**
* Get property values from an event instance for a given mapped event property by passing the map string key.
* Instances that implement this interface are usually bound to a particular {@link EventType} and cannot
* be used to access {@link com.espertech.esper.client.EventBean} instances of a different type.
*/
public interface EventPropertyGetterMapped
{
/**
* Return the value for the property in the event object specified when the instance was obtained.
* Useful for fast access to event properties. Throws a PropertyAccessException if the getter instance
* doesn't match the EventType it was obtained from, and to indicate other property access problems.
* @param eventBean is the event to get the value of a property from
* @param mapKey the map key value
* @return value of property in event
* @throws com.espertech.esper.client.PropertyAccessException to indicate that property access failed
*/
public Object get(EventBean eventBean, String mapKey) throws PropertyAccessException;
}