code: //==============================================================================
  //	
  //	Copyright (c) 2002-
  //	Authors:
  //	* Andrew Hinton <ug60axh@cs.bham.ac.uk> (University of Birmingham)
  //	
  //------------------------------------------------------------------------------
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM is free software; you can redistribute it and/or modify
  //	it under the terms of the GNU General Public License as published by
  //	the Free Software Foundation; either version 2 of the License, or
  //	(at your option) any later version.
  //	
  //	PRISM 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 PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package settings;
  
  public interface SettingOwner extends Comparable
  {
      /**
       *  One for each type of owner
       */
      public int getSettingOwnerID();
      
      /** One for each owner
       *  This will be displayed when only
       *  this owner is being displayed.
       */
      public String getSettingOwnerName();
      
      /** ONe for each type of property collection
       *  When only one owner is being displayed,
       *  we see the result of this method, and then
       *  the result of getDescriptor.
       *  If there is more than one owner being
       *  displayed, we see the number of
       *  owners, then the result of this method
       *  followed by an "s".
       */
      public String getSettingOwnerClassName();
      
      public int getNumSettings();
      
      public Setting getSetting(int index);
      
      /**
       *  Called if a setting has been changed externally to this SettingOwner.
       */
      public void notifySettingChanged(Setting setting);
      
      /**
       *  Return null if no display
       */
      public SettingDisplay getDisplay();
      
      public void setDisplay(SettingDisplay display);
      
  }
  