/*
JPC: An x86 PC Hardware Emulator for a pure Java Virtual Machine
Release Version 2.4
A project from the Physics Dept, The University of Oxford
Copyright (C) 2007-2010 The University of Oxford
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.
This program 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Details (including contact information) can be found at:
jpc.sourceforge.net
or the developer website
sourceforge.net/projects/jpc/
Conceived and Developed by:
Rhys Newman, Ian Preston, Chris Dennis
End of licence header
*/
package org.jpc.emulator;
/**
* An object which can form part of a PC.
* <p>
* Usually but not always, objects that implement <code>HardwareComponent</code> have
* a physical counterpart in a real computer.
* @author Chris Dennis
*/
public interface HardwareComponent extends Hibernatable
{
/**
* Returns true when a object need be offered no more
* <code>HardwareComponent</code> instances through the
* <code>acceptComponent</code> method.
* @return true when this component is fully initialised.
*/
public boolean initialised();
/**
* Offers a <code>Hardware Component</code> as possible configuration
* information for this object.
* <p>
* Implementations of this method may or may not maintain a reference to
* <code>component</code> depending on its type and value.
* @param component <code>HardwareComponent</code> being offered.
*/
public void acceptComponent(HardwareComponent component);
/**
* Resets this component to its default initial state
* <p>
* Implementations of this method should not erase any configuration
* information.
*/
public void reset();
/**
* Returns true when all references have been received following a call of
* <code>loadState</code>.
* @return true on a set of complete external references
*/
public boolean updated();
/**
* Offers this object a component as a possible required external reference
* following a call of <code>loadState</code>.
* @param component
*/
public void updateComponent(HardwareComponent component);
}