/* This file is part of the db4o object database http://www.db4o.com Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com db4o is free software; you can redistribute it and/or modify it under the terms of version 3 of the GNU General Public License as published by the Free Software Foundation. db4o is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/. */ package com.db4o.ext; /** * extended client functionality for the * {@link ExtObjectContainer ExtObjectContainer} interface. * <br><br>Both * {@link com.db4o.Db4oClientServer#openClient Db4oClientServer.openClient()} methods always * return an ExtClient object so a cast is possible.<br><br> * The ObjectContainer functionality is split into multiple interfaces to allow newcomers to * focus on the essential methods. */ public interface ExtClient extends ExtObjectContainer{ /** * checks if the client is currently connected to a server. * @return true if the client is alive. */ public boolean isAlive(); }