Source for javax.imageio.spi.RegisterableService

   1: /* RegisterableService.java -- An interface for service providers.
   2:    Copyright (C) 2004, 2005  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package javax.imageio.spi;
  40: 
  41: 
  42: /**
  43:  * An interface which service providers may optionally implement in
  44:  * order to get notified when they are added or removed from a {@link
  45:  * ServiceRegistry}.
  46:  *
  47:  * @since 1.4
  48:  *
  49:  * @author Sascha Brawer (brawer@dandelis.ch)
  50:  */
  51: public interface RegisterableService
  52: {
  53:   /**
  54:    * Informs this service provider that it has been registered in a
  55:    * {@link ServiceRegistry}. If this provider gets registered as an
  56:    * implementor for several service categories, its
  57:    * <code>onRegistration</code> method will be called multiple times.
  58:    *
  59:    * @param registry the registry to which this service provider has
  60:    * been added.
  61:    *
  62:    * @param category the service category for which this provider has
  63:    * been registered as an implementor.
  64:    */
  65:   void onRegistration(ServiceRegistry registry, Class<?> category);
  66: 
  67: 
  68:   /**
  69:    * Informs this service provider that it has been de-registered from
  70:    * a {@link ServiceRegistry}. If this provider had been registered
  71:    * as an implementor for several service categories, its
  72:    * <code>onDeregistration</code> method will be called multiple
  73:    * times.
  74:    *
  75:    * @param registry the registry from which this service provider has
  76:    * been removed.
  77:    *
  78:    * @param category the service category for which this provider has
  79:    * been registered as an implementor.
  80:    */
  81:   void onDeregistration(ServiceRegistry registry, Class<?> category);
  82: }