/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* --------------
* SubSystem.java
* --------------
* (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: SubSystem.java,v 1.5 2005/10/18 13:14:50 mungady Exp $
*
* Changes
* -------
* 10-Jul-2003 : Initial version
* 07-Jun-2004 : Added JCommon header (DG);
*
*/
package org.jfree.base.modules;
import org.jfree.util.Configuration;
import org.jfree.util.ExtendedConfiguration;
/**
* A sub-system holds a separate collection of modules.
* <p>
* On a simple level, subsystems can be just libraries.
* Libraries offering services need a controlled way to
* initialize these services before dependent code starts
* using the library. This can be achived by embedding the
* library services into an own subsystem.
*
* @author Thomas Morgner
*/
public interface SubSystem {
/**
* Returns the global configuration.
*
* @return The global configuration.
*/
public Configuration getGlobalConfig();
/**
* Returns the global configuration as ExtendedConfiguration instance.
*
* @return the extended configuration.
*/
public ExtendedConfiguration getExtendedConfig ();
/**
* Returns the package manager.
*
* @return The package manager.
*/
public PackageManager getPackageManager();
}