The Object Request Broker constitutes an essential component of the Java RMI distributed object model. It is based on the functionality provided by the Java 2 class library in particular package java.rmi and the Java Virtual Machine.
Author: Josef Stepisnik
Inhaltsangabe:Abstract: Distributed computing is playing an increasingly important role in many areas of industry, the sciences, in business processes and in the development of new and emerging technologies. It facilitates inter-process communication across heterogeneous networks, hardware platforms and operating systems. We compare four distributed and object-oriented architectures: Sockets in Java 2, Sockets in Berkeley Unix, Remote Method Invocation in Java - RMI - and the Common Object Request Broker Architecture - CORBA - of the Object Management Group consortium. We provide a survey of each of the distributed architectures including its constituting components. To present the architectures in a practical context, we amend each survey with a corresponding application framework. We conclude with a comparative study of the Socket APIs in Java 2 and in Berkeley UNIX and the distributed object models of Java RMI and CORBA. Although the distributed object model as defined by CORBA represents an adopted industry standard, Java RMI has features unattainable by CORBA. The first part of the discussion offers a comprehensive overview of the Socket architecture in Java 2 and Berkeley UNIX and the distributed object model of Java Remote Method Invocation and the Common Object Request Broker Architecture. The second part concludes the discussion with a comparative study of selected features with emphasis on the Common Object Request Broker Architecture and Java Remote Method Invocation. Chapter 1 - The TCP/IP Protocol Suite: We provide an introductory overview of the TCP/IP protocol suite and its architecture including layers and protocols. The TCP/IP architecture is based on three concepts: processes, layers and protocols. There is no official protocol model as compared to the OSI proposal. We can however devise a logical structure of the TCP/IP protocol suit based on the associated protocols and their relationships. The chapter concludes with a brief discussion of Internet-related organizations and standards. Chapter 2 - Sockets in Berkeley Unix: We present the Berkeley UNIX socket architecture in relation to the Internet communication domain and illustrate connection-oriented and connectionless models of communication. The socket architecture forms the basis for the development of distributed applications. A socket represents an endpoint of communication for connectionless or connection-oriented protocols. A socket address data structure [...]
This book is a comprehensive guide to Java distributed computing.
Author: Bill McCarty
Publisher: Sams Publishing
Category: Electronic data processing
This book is a comprehensive guide to Java distributed computing. The book covers networking, distributed computing architectures, advanced Java facilities, security, data managing, and specific distributed computing techniques including sockets, Remote Method Invocation, Java servlets, Microsoft's Distributed Component Model, and the Common Object Request Broker Architecture.
Distributed. Computing. with. Java. So far, we have merely worked with objects represented by one JVM. In distributed object computing, an object reference may be created locally and bound to a (remote) server object.
Author: Danny Poo
Publisher: Springer Science & Business Media
Covering the latest in Java technologies, Object-Oriented Programming and Java teaches the subject in a systematic, fundamentals-first approach. It begins with the description of real-world object interaction scenarios and explains how they can be translated, represented and executed using object-oriented programming paradigm. By establishing a solid foundation in the understanding of object-oriented programming concepts and their applications, this book provides readers with the pre-requisites for writing proper object-oriented programs using Java.
CORBA also defines a rich set of services that facili- tate the construction of distributed object systems . ... RMI is a distributed object system for Java servers and clients ; since there is one homogeneous program- ming language ...
Author: Henry Balen
Publisher: Cambridge University Press
Distributed Object Architectures with CORBA is a guide to designing software comprised of distributed components. While it is based on OMG's Common Object Request Broker Architecture (CORBA) standard, the principles also apply to architecture built with other technology (such as Microsoft's DCOM). As ORB products evolve to incorporate new additions to CORBA, the knowledge and experience required to build stable and scalable systems is not widespread. With this volume the reader can develop the skills and knowledge that are necessary for building such systems. The book assumes a familiarity with object-oriented concepts and the basics of CORBA. Software developers who are new to building systems with CORBA-based technologies will find this a useful guide to effective development.
The Java Remote Method Invocation (RMI) package is a Javacentric scheme for distributed objects that is now a part of the core Java API. RMI offers some of the critical elements of a distributed object system for Java, plus some other ...
Author: Jim Farley
Publisher: "O'Reilly Media, Inc."
Distributed computing and Java go together naturally. As the first language designed from the bottom up with networking in mind, Java makes it very easy for computers to cooperate. Even the simplest applet running in a browser is a distributed application, if you think about it. The client running the browser downloads and executes code that is delivered by some other system. But even this simple applet wouldn't be possible without Java's guarantees of portability and security: the applet can run on any platform, and can't sabotage its host.Of course, when we think of distributed computing, we usually think of applications more complex than a client and server communicating with the same protocol. We usually think in terms of programs that make remote procedure calls, access remote databases, and collaborate with others to produce a single result. Java Distributed Computing discusses how to design and write such applications. It covers Java's RMI (Remote Method Invocation) facility and CORBA, but it doesn't stop there; it tells you how to design your own protocols to build message passing systems and discusses how to use Java's security facilities, how to write multithreaded servers, and more. It pays special attention to distributed data systems, collaboration, and applications that have high bandwidth requirements.In the future, distributed computing can only become more important.Java Distributed Computing provides a broad introduction to the problems you'll face and the solutions you'll find as you write distributed computing applications.Topics covered in Java Distributed Computing: Introduction to Distributed Computing Networking Basics Distributed Objects (Overview of CORBA and RMI) Threads Security Message Passing Systems Distributed Data Systems (Databases) Bandwidth Limited Applications Collaborative Systems
It addresses issues of relating event notifications and distributed object transactions. ... The second paper in this session, Advanced Transactions in Enterprise JavaBeans by Marek Prochazka, looks at component container-managed ...
Author: Wolfgang Emmerich
Publisher: Springer Science & Business Media
This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Engineering Distributed Objects, EDO 2000, held in November 2000 in Davis, California, USA. The 15 revised full papers presented together with session surveys were carefully reviewed and selected from 30 submissions. The book presents topical sections on middleware selection, resource management, architectural reasoning, distributed communication, advanced transactions, and service integration.
This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Engineering Distributed Objects, EDO 2000, held in November 2000 in Davis, California, USA.The 15 revised full papers presented together ...
Author: Wolfgang Emmerich
This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Engineering Distributed Objects, EDO 2000, held in November 2000 in Davis, California, USA.The 15 revised full papers presented together with session surveys were carefully reviewed and selected from 30 submissions. The book presents topical sections on middleware selection, resource management, architectural reasoning, distributed communication, advanced transactions, and service integration.
This document intends to offer a detailed discussion of selected distributed object-oriented architectures at conceptual level.
Author: Josef Stepisnik
Publisher: Diplomica Verlag
This document intends to offer a detailed discussion of selected distributed object-oriented architectures at conceptual level. The first part of the discussion offers a comprehensive overview of the Socket architecture in Java 2 and Berkeley UNIX and the distributed object model of Java Remote Method Invocation and the Common Object Request Broker Architecture. The second part concludes the discussion with a comparative study of selected features with emphasis on the Common Object Request Broker Architecture and Java Remote Method Invocation. Major Issues Include The TCP/IP Protocol Suite. We provide an introductory overview of the TCP/IP protocol suite and its architecture including layers and protocols. The TCP/IP architecture is based on three concepts: processes, layers and protocols. Sockets in Berkeley Unix. We present the Berkeley UNIX socket architecture in relation to the Internet communication domain and illustrate connection-oriented and a connectionless models of communication. Sockets in Java 2. We describe the Java 2 socket architecture, outline selected socket operations, introduce related packages and classes and conclude with a framework for a connection-oriented and connectionless model of communication. Remote Method Invocation in Java 2. We present a distributed object model in Java RMI, provide an overview of related interfaces, classes and packages and discuss security related issues. We conclude with the development of a framework for a distributed object application. Common Object Request Broker Architecture. We introduce a distributed object model for the Common Object Request Broker Architecture and outline design concepts including the Interface Definition Language and the Interoperable Naming Service. We conclude with the development of a framework for a distributed object application. Comparative Study of Distributed Architectures. We present a comparative study of socket architectures and distributed object models introduced in part o
5.5 Case study : Java RMI Java RMI extends the Java object model to provide support for distributed objects in the Java language . In particular , it allows objects to invoke methods on remote objects using the same syntax as for local ...
Author: George F. Coulouris
Publisher: Pearson Education
Up-to-date coverage of the latest development in this fast moving area, including the debate between components and web services as the way for the industry to go, increased emphasis on security and the arrival of ubiquitous computing in the form of, among other things, The Grid.
Garbage collection for Java distributed objects ADancusH and D. Finkel2 1Network Storage Group, Sun Microsystems, Nashua, NH, USA 2Department of Computer Science, Worcester Polytechnic Institute, Worcester, MA, ...
Author: Paul Dowland
This book contains the proceedings of the Third International Network Conference (INC 2002), which was held in Plymouth, UK, in July 2002. A total of 72 papers were accepted for inclusion in the conference, and they are presented here in 8 themed chapters. The main topics of the book include: Web Technologies and Applications; Network Technologies; Multimedia over IP; Quality of Service; Security and Privacy; Distributed Technologies; Mobility; and Applications and Impacts. The papers address state-of-the-art research and applications of network technology, arising from both the academic and industrial domains. The book should consequently be of interest to network practitioners, researchers, academics, and technical managers involved in the design, development and use of network systems.