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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!-- package.html - describes classes in javax.rmi package. Copyright (C) 2004 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. --> <html> <head><title>GNU Classpath - javax.rmi.CORBA</title></head> <body> <p> Java RMI over IIOP combines RMI technology with CORBA technology. Like plain RMI, RMI over IIOP allows to work completely in the Java programming language (no IDL). When CORBA needs a separate helper class for each structure being passed, RMI over IIOP only needs stubs and ties for the objects that are remotely accessible. As a result, development with RMI-IIOP is easier. However the specialised pure CORBA helpers needs no reflection to transfer they structures and hence may be faster than methods, used by both RMI-IIOP and plain RMI. </p><p> Like RMI, RMI over IIOP provides flexibility by allowing to pass any serializable Java object (Objects By Value) between application components. A certain "imaginary IDL" is automatically supposed; this IDL can be explicitly generated and later used to interoperate with non-java application. </p><p> Like CORBA, RMI over IIOP is based on open standards defined with the participation of hundredsof vendors and users in the OMG. It uses IIOP communication protocol that provides much better interoperability with other programming languages. </p><p> With RMI/IIOP you can use advanced CORBA features: multiple objects per servant and servants per object, servant activators and locators, servant, client and ior interceptors, CORBA naming service, various ORB policies, stringified object references and so on. This functionality is based on CORBA value type standard. RMI/IIOP supports (and GNU Classpath implements) transferring of the arbitrary connected object graphs (graph flattenning). </p><p> GNU Classpath RMI-IIOP functionality is implemented as described in OMG formal/03-09-04 (IDL to Java mapping v1.3). Value types are written as described in formal/04-03-12 (CORBA 3.0.3). </p> @author Wu Gansha (gansha.wu@intel.com), headers. @author Audrius Meskauskas (AudriusA@Bioinformatics.org), implementation. </body> </html>