/*
***************************************************************************************
* 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.plugin;
/**
* Interface for loaders of input/output adapters or any other adapter that may participate in an engine lifecycle.
*/
public interface PluginLoader {
/**
* Initializes the adapter loader.
* <p>
* Invoked before the engine instance is fully initialized. Thereby this is not the place to
* look up an engine instance from {@link com.espertech.esper.client.EPServiceProviderManager}
* and use it. Use the {@link #postInitialize} method instead.
*
* @param context the plug in context
*/
public void init(PluginLoaderInitContext context);
/**
* Called after an engine instances has fully initialized and is already
* registered with {@link com.espertech.esper.client.EPServiceProviderManager}.
*
* @since 3.3.0
*/
public void postInitialize();
/**
* Destroys adapter loader and adapters loaded.
* <p>
* Invoked upon {@link com.espertech.esper.client.EPServiceProvider#destroy} before the engine instance is actually destroyed.
* <p>
* Implementations may block to ensure dependent threads are stopped or other resources released.
*/
public void destroy();
}