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