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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java | |
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Diffstat (limited to 'libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java')
-rw-r--r-- | libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java b/libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java new file mode 100644 index 000000000..b8f1d06da --- /dev/null +++ b/libjava/classpath/javax/rmi/CORBA/PortableRemoteObjectDelegate.java @@ -0,0 +1,137 @@ +/* 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 obj 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 obj 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 obj the object to unexport. + * + * @throws NoSuchObjectException if the passed object is not currently + * exported. + */ + void unexportObject(Remote obj) + throws NoSuchObjectException; +} |