| /* PortableRemoteObjectDelegate.java -- Interface supporting PortableRemoteObject |
| Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.rmi.CORBA; |
| |
| import java.rmi.NoSuchObjectException; |
| import java.rmi.Remote; |
| import java.rmi.RemoteException; |
| |
| /** |
| * A delegate, implementing the functionality, provided by the |
| * {@link PortableRemoteObject}. |
| * |
| * The default delegate can be altered by setting the system property |
| * "javax.rmi.CORBA.PortableRemoteObjectClass" to the name of the alternative |
| * class that must implement {@link PortableRemoteObjectDelegate}. |
| * |
| * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) |
| */ |
| public interface PortableRemoteObjectDelegate |
| { |
| /** |
| * <p> |
| * Makes the remote object <code>target</code> ready for remote |
| * communication using the same communications runtime as for the passed |
| * <code>source</code> parameter. Connection normally happens implicitly |
| * when the object is sent or received as an argument on a remote method call. |
| * </p> |
| * <p> |
| * The target object is connected to the same ORB as source by calling the |
| * {@link Stub#connect} if it is a stub or by associating its tie with an ORB |
| * if it is an implementation object. |
| * </p> |
| * |
| * @param target the target object that may be either an RMI/IDL stub or an |
| * exported RMI/IDL implementation object |
| * @param source the source object may also be either an RMI/IDL stub or an |
| * exported RMI/IDL implementation object. |
| * |
| * @throws RemoteException if the target is already connected to another ORB. |
| */ |
| void connect(Remote target, Remote source) |
| throws RemoteException; |
| |
| /** |
| * Register the passed object with the ORB runtimes, making it remotely |
| * accessible. When called on jre with no objects exported, creates a |
| * non-daemon thread that prevents jre from terminating until all objects are |
| * unexported. Also, such object cannot be collected by garbage collector. |
| * This is usually impemented via {@link Util#unexportObject} |
| * |
| * @param object the object to export. |
| * |
| * @throws RemoteException |
| */ |
| void exportObject(Remote obj) |
| throws RemoteException; |
| |
| /** |
| * Narrows the passed object to conform to the given interface or IDL type. |
| * This method may return different instance and cannot be replaced by the |
| * direct cast. |
| * |
| * @param narrowFrom an object to narrow. |
| * @param narrowTo a type to that the object must be narrowed. |
| * |
| * @return On success, an object of type narrowTo or null, if narrowFrom = |
| * null. |
| * |
| * @throws ClassCastException if no narrowing is possible. |
| */ |
| Object narrow(Object narrowFrom, Class narrowTo) |
| throws ClassCastException; |
| |
| /** |
| * Takes a server implementation object and returns a stub object that can be |
| * used to access that server object (target). If the target is connected, the |
| * returned stub is also connected to the same ORB. If the target is |
| * unconnected, the returned stub is unconnected. |
| * |
| * @param target a server side object. |
| * @return a stub object that can be used to access that server object. |
| * |
| * @throws NoSuchObjectException if a stub cannot be located for the given |
| * target. |
| */ |
| Remote toStub(Remote obj) |
| throws NoSuchObjectException; |
| |
| /** |
| * Deregister a currently exported server object from the ORB runtimes. The |
| * object to becomes available for garbage collection. This is usually |
| * impemented via {@link Util#unexportObject} |
| * |
| * @param object the object to unexport. |
| * |
| * @throws NoSuchObjectException if the passed object is not currently |
| * exported. |
| */ |
| void unexportObject(Remote obj) |
| throws NoSuchObjectException; |
| } |