/* *************************************************************************************** * 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.core.service; /** * Marker interface for extension services that provide additional engine or statement-level extensions, * such as views backed by a write-behind store. */ public interface EngineLevelExtensionServicesContext { /** * Invoked to initialize extension services after engine services initialization. * * @param engine the engine * @param runtimeSPI runtime SPI * @param adminSPI admin SPI */ public void init(EPServicesContext engine, EPRuntimeSPI runtimeSPI, EPAdministratorSPI adminSPI); /** * Invoked to destroy the extension services, when an existing engine is initialized. */ public void destroy(); public boolean isHAEnabled(); }