Source for org.omg.CORBA_2_3.portable.ObjectImpl

   1: /* ObjectImpl.java --
   2:    Copyright (C) 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 org.omg.CORBA_2_3.portable;
  40: 
  41: import org.omg.CORBA.BAD_OPERATION;
  42: 
  43: /**
  44:  * Extends the previous version of the CORBA object by one additional method,
  45:  * defined in CORBA 2_3 . See ancestor for details about the CORBA object.
  46:  *
  47:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  48:  */
  49: public abstract class ObjectImpl
  50:   extends org.omg.CORBA.portable.ObjectImpl
  51: {
  52:   /**
  53:    * Returns the codebase for the provided object reference.
  54:    * A codebase is a location information (for instance, URL), specifying,
  55:    * where the missing parts of the object code can be downloaded. This
  56:    * is important for the value type objects that handle they method calls
  57:    * locally and hence must have the local copy of the implementing code.
  58:    *
  59:    * This implementation expects that the object delegate is set and is
  60:    * an instance of the org.omg.CORBA_2_3.portable.Delegate. If casts
  61:    * the set delegate to the given type and invokes
  62:    * {@link org.omg.CORBA_2_3.portable.Delegate#get_codebase}.
  63:    *
  64:    * @return normally, an agreed location information, specifying, where
  65:    * the supporting code (like java classes) can be found.
  66:    *
  67:    * @throws BAD_OPERATION if the object delegate is not an instance
  68:    * of org.omg.CORBA_2_3.portable.Delegate.
  69:    */
  70:   public String _get_codebase()
  71:   {
  72:     Object delegate = _get_delegate();
  73:     if (delegate instanceof org.omg.CORBA_2_3.portable.Delegate)
  74:       return ((org.omg.CORBA_2_3.portable.Delegate) delegate).get_codebase(this);
  75:     else if (delegate != null)
  76:       throw new BAD_OPERATION(delegate.getClass().getName() +
  77:                               " is not a org.omg.CORBA_2_3.portable.Delegate"
  78:                              );
  79:     else
  80:       throw new BAD_OPERATION("The delegate not set.");
  81:   }
  82: }