UpdateStrategy.java

/**************************************************************************************
 * 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.event.vaevent;

/**
 * Strategy for merging updates or additional properties.
 */
public interface UpdateStrategy
{
    /**
     * Merge properties.
     * @param isBaseEventType true if the event is a base event type
     * @param revisionState the current state, to be updated.
     * @param revisionEvent the new event to merge
     * @param typesDesc descriptor for event type of the new event to merge
     */
    public void handleUpdate(boolean isBaseEventType,
                              RevisionStateMerge revisionState,
                              RevisionEventBeanMerge revisionEvent,
                              RevisionTypeDesc typesDesc);
}