/*
***************************************************************************************
* 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.collection;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.event.EventBeanUtility;
import java.util.ArrayDeque;
/**
* Buffer for events - accumulates events until flushed.
*/
public class FlushedEventBuffer {
private ArrayDeque<EventBean[]> remainEvents = new ArrayDeque<EventBean[]>();
/**
* Add an event array to buffer.
*
* @param events to add
*/
public void add(EventBean[] events) {
if (events != null) {
remainEvents.add(events);
}
}
/**
* Get the events currently buffered. Returns null if the buffer is empty. Flushes the buffer.
*
* @return array of events in buffer or null if empty
*/
public EventBean[] getAndFlush() {
EventBean[] flattened = EventBeanUtility.flatten(remainEvents);
remainEvents.clear();
return flattened;
}
/**
* Empty buffer.
*/
public void flush() {
remainEvents.clear();
}
}