/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* 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.view;
/**
* An empty output condition that is always satisfied.
*/
public class OutputConditionNull extends OutputConditionBase implements OutputCondition {
private static final boolean DO_OUTPUT = true;
private static final boolean FORCE_UPDATE = false;
/**
* Ctor.
*
* @param outputCallback is the callback to make once the condition is satisfied
*/
public OutputConditionNull(OutputCallback outputCallback) {
super(outputCallback);
}
public void updateOutputCondition(int newEventsCount, int oldEventsCount) {
outputCallback.continueOutputProcessing(DO_OUTPUT, FORCE_UPDATE);
}
public void terminated() {
outputCallback.continueOutputProcessing(true, true);
}
public void stop() {
// no action required
}
}