/* 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.diagnostic; /** * provides methods to configure the behaviour of db4o diagnostics. * <br><br>Diagnostic system can be enabled on a running db4o database * to notify a user about possible problems or misconfigurations. * Diagnostic listeners can be be added and removed with calls * to this interface. * To install the most basic listener call:<br> * <code> * EmbeddedConfiguration config = Db4oEmbedded.newConfiguration(); <br> * config.common().diagnostic().addListener(new DiagnosticToConsole());</code> * @see com.db4o.config.Configuration#diagnostic() * @see DiagnosticListener */ public interface DiagnosticConfiguration { /** * adds a DiagnosticListener to listen to Diagnostic messages. */ public void addListener(DiagnosticListener listener); /** * removes all DiagnosticListeners. */ public void removeAllListeners(); }