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Topic: Java remote method invocation


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In the News (Sun 29 Nov 09)

  
  Java Remote Method Invocation: 2 - Distributed Object Model   (Site not responding. Last check: 2007-10-09)
A reference to a remote object can be passed as an argument or returned as a result in any method invocation (local or remote).
A remote object can be cast to any of the set of remote interfaces supported by the implementation using the syntax for casting built into the Java programming language.
Since the failure modes of invoking remote objects are inherently more complicated than the failure modes of invoking local objects, clients must deal with additional exceptions that can occur during a remote method invocation.
www.tu-chemnitz.de /global-text/doc/java/docs/guide/rmi/spec/rmi-objmodel4.html   (225 words)

  
 Java Remote Method Invocation: 3 - RMI System Overview   (Site not responding. Last check: 2007-10-09)
A stub for a remote object acts as a client's local representative or proxy for the remote object.
The caller invokes a method on the local stub which is responsible for carrying out the method call on the remote object.
In the remote JVM, each remote object may have a corresponding skeleton (in Java 2 platform-only environments, skeletons are not required).
www.cs.ubc.ca /local/computing/software/j2sdk-1.4.2/docs/guide/rmi/spec/rmi-arch2.html   (283 words)

  
 Java Remote Method Invocation: 5 - Server Interfaces
method determines whether two object references are equal, not whether the contents of the two objects are equal.
method returns the same value for all remote references that refer to the same underlying remote object (because references to the same object are considered equal).
method is defined to return a string which represents the remote reference of the object.
www.ee.ic.ac.uk /javadocs/guide/rmi/spec/rmi-server.doc1.html   (565 words)

  
 Java Remote Method Invocation - Distributed Computing for Java
Java objects are always type safe, preventing bugs that would occur if a programmer makes a mistake about the type of an object.
Java Classes can be run in a secure fashion, allowing you to interact with clients that may be running in an untrusted environment.
You would have achieved benefits of Java that are local to the server, but you cannot leverage expanded value of Java for the client-server connection.
www.dia.unisa.it /~vitsca/ASDAD/1998-1999/javarmi.html   (6356 words)

  
 Java RMI Tutorial   (Site not responding. Last check: 2007-10-09)
This is a brief introduction to Java Remote Method Invocation (RMI).
Java RMI is a mechanism that allows one to invoke a method on an object that exists in another address space.
Using a serializable object in a remote method invocation is straightforward.
www.ccs.neu.edu /home/kenb/com3337/rmi_tut.html   (3226 words)

  
 Java Remote Method Invocation - Distributed Computing for Java
Java Remote Method Invocation (RMI) allows you to write distributed objects using Java.
It is commonly said that RMI works for "Java to Java," but this hides an important fact: Java connects quite well to existing and legacy systems using the native method interface called JNI.
Each remote method can be implemented by the server using JDBC calls onto the actual database or by native methods that use other database access mechanisms.
www-csag.ucsd.edu /individual/achien/cs491-f97/papers/javarmi.html   (6347 words)

  
 Java Remote Method Invocation: 5 - Server Interfaces   (Site not responding. Last check: 2007-10-09)
As long as some client holds a remote reference to the remote object, the RMI runtime keeps a local reference to the remote object.
As long as some local reference to the remote object exists, it may be passed in remote calls or returned to clients.
Remote objects are only collected when no more references, either local references or those held by clients, still exist.
www.cc.gatech.edu /ael/javadocs/jdk1.3/guide/rmi/spec/rmi-server5.html   (210 words)

  
 java.net: RMI, Dynamic Proxies, and the Evolution of Deployment
In most object distribution frameworks, method calls from the client to the server are mediated by stubs and skeletons.
One of the things that people often overlook is that each remote method invocation to the server implicitly consumes a thread.
The Java Remote Method Protocol (JRMP), which is the actual "bytes on the wire" protocol used by RMI, was revised.
today.java.net /pub/a/today/2004/06/01/RMI.html   (1537 words)

  
 Java(TM) Remote Method Invocation (Java RMI)
The "Using Custom Socket Factories with Java RMI" Tutorial shows you how to create a version of the distributed Hello World program in which the Java RMI runtime uses sockets of a type chosen by the programmer.
One of the most significant capabilities of the Java platform is the ability to dynamically download Java software from any URL to a VM running in a separate process, usually on a different physical system.
The result is that a remote system can run a program, for example an applet, which has never been installed on its disk.
matrix.csustan.edu /docs/java5/guide/rmi   (445 words)

  
 Java Remote Method Invocation: 7 - Remote Object Activation   (Site not responding. Last check: 2007-10-09)
in the object's descriptor is passed as the second argument to the remote object's constructor for the object to use during reinitialization/activation.
method returns the group identifier for the object specified by the descriptor.
method returns a "marshalled object" containing initialization/activation data for the object specified by the descriptor.
www.cs.uidaho.edu /~jimaf/java1.2docs/guide/rmi/spec/rmi-activation.doc6.html   (344 words)

  
 Java Remote Method Invocation   (Site not responding. Last check: 2007-10-09)
The Java RMI system acts by calling a method of a remote interface which declares the method of the remote object.
The Java RMI system assumes it is operating on a Java Virtual Machine, that is a pseudo microprocessor implemented in software which utilizes the operating system and hardware of the host.
The diagram is a representation of the Java RMI system and depicts the bi-directional pathway traveled when a client invokes a method on a remote server object.
www.tvobjects.com /products/docs/RMI.html   (211 words)

  
 Java Remote Method Invocation: 10 - RMI Wire Protocol
Call and return data in RMI calls are formatted using the Java Object Serialization protocol.
Each method invocation's CallData is represented by the ObjectIdentifier (the target of the call), an Operation (a number representing the method to be invoked), a Hash (a number that verifies that client stub and remote object skeleton use the same stub protocol), followed by a list of zero or more Arguments for the call.
Note: as an optimization, classes in the "java" package are not annotated, since they are always available to the receiver.
www.ee.ic.ac.uk /javadocs/guide/rmi/spec/rmi-protocol.doc3.html   (361 words)

  
 EDM/2 - Introduction to Java Remote Method Invocation (RMI)
Java RMI is comprised of three layers that support the interface.
Each method in the implementation file that is going to be externalized needs to throw a remote exception.
The amortizeSchedule() method prints a message on the server and instantiates a new local schedule object that is returned to the client.
www.edm2.com /0601/rmi1.html   (2355 words)

  
 Java Remote Method Invocation
Passing an object by reference (as is done with remote objects) means that any changes made to the state of the object by remote method calls are reflected in the original remote object.
When passing a remote object, only those interfaces that are remote interfaces are available to the receiver; any methods defined in the implementation class or defined in nonremote interfaces implemented by the class are not available to that receiver.
Once a remote object is registered with the RMI registry on the local host, callers on any host can look up the remote object by name, obtain its reference, and then invoke remote methods on the object.
www.cs.jcu.edu.au /Subjects/cp2004/2001/JRMI-sun.html   (6293 words)

  
 Java Remote Method Invocation by Gopalan Suresh Raj
Remote Method Invocation (RMI) is the object equivalent of Remote Procedure Calls (RPC).
The clients can now invoke methods of this remote object as if it were a local object running in the same virtual machine as the client.
Since the two objects may physically reside on different machines, a mechanism is needed to transmit the client's request to invoke a method on the server object to the server object and provide a response.
gsraj.tripod.com /java/java_rmi.html   (643 words)

  
 Java Remote Method Invocation: 3 - System Architecture   (Site not responding. Last check: 2007-10-09)
In Java, when a class loader loads classes from the local CLASSPATH, those classes are considered trustworthy and are not restricted by a security manager.
The security manger must be started as the first action of a Java program so that it can regulate subsequent actions.
The security manager ensures that loaded classes adhere to the standard Java safety guarantees, for example that classes are loaded from "trusted" sources (such as the applet host) and do not attempt to access sensitive functions.
www.novell.com /documentation/extendas35/docs/help/java/jdk/guide/rmi/spec/rmi-arch.doc9.html   (439 words)

  
 Java remote method invocation - Wikipedia, the free encyclopedia
The Java Remote Method Invocation API, or RMI, is a Java application programming interface for performing remote procedural calls.
There are two common implementations of the interface, the initial one to be implemented known as JRMP and a version compatible with CORBA.
Sun's Java API Reference for the RMI package
en.wikipedia.org /wiki/Java_remote_method_invocation   (184 words)

  
 Web + Object Integration
Remote data access is through methods that can be accessed through a proxy-stub pair that forward the request from the client component to the server component and send back the response.
A Java interface is declared to be remote by extending it from the class CORBA.Object which is part of the ORB runtime.
Remote method invocation follows the standard ORB paradigm: a client stub routine (proxy for the server object) transmits the invocation via the ORB to a skeleton routine on the server.
www.objs.com /survey/web-object-integration.htm   (15354 words)

  
 Amazon.co.uk: Books: Java RMI: Remote Method Invocation   (Site not responding. Last check: 2007-10-09)
Remote Method Invocation (RMI) is a powerful model for quickly developing 100% Java implementations of distributed applications.
Java RMI is a good refernce work for determining how to use the Java RMI API.
After reading several other texts and chapters on RMI, Java RMI is by far the most direct and concise explanation of this sometimes elusive technology.
www.amazon.co.uk /exec/obidos/ASIN/0764580434   (841 words)

  
 Java Remote Method Invocation: - Exceptions In RMI   (Site not responding. Last check: 2007-10-09)
Java Remote Method Invocation: - Exceptions In RMI
These are some of the underlying exceptions which can occur on the server when the server is itself executing a remote method invocation.
so that the client will know that its own remote method invocation on the server did not fail, but that a secondary remote method invocation made by the server failed.
www.tu-chemnitz.de /global-text/doc/java/docs/guide/rmi/spec/rmi-exceptions5.html   (102 words)

  
 Java Remote Method Invocation: 8 - Stub/Skeleton Interfaces   (Site not responding. Last check: 2007-10-09)
Clients interact with stub (surrogate) objects that have exactly the same set of remote interfaces defined by the remote object's class; the stub class does not include the non-remote portions of the class hierarchy that constitutes the object's type graph.
This is because the stub class is generated from the most refined implementation class that implements one or more remote interfaces.
A client, therefore, can make use of the built-in Java operations to check a remote object's type and to cast from one remote interface to another.
www.scs.carleton.ca /~arc/jdk1.2/docs/guide/rmi/spec/rmi-stubs.doc2.html   (114 words)

  
 Java Remote Method Invocation: 7 - Remote Object Activation   (Site not responding. Last check: 2007-10-09)
method when an object in its group becomes inactive (deactivates).
An activation group discovers that an object (that it participated in activating) in its VM is no longer active via a call to the activation group's
that the remote object reference it holds for the object with the activation identifier, id, is no longer valid.
www.cs.uidaho.edu /~jimaf/java1.2docs/guide/rmi/spec/rmi-activation.doc12.html   (286 words)

  
 Java Remote Method Invocation: 1 - Introduction   (Site not responding. Last check: 2007-10-09)
An alternative to sockets is Remote Procedure Call (RPC), which abstracts the communication interface to the level of a procedure call.
The Java platform's remote method invocation system described in this specification has been specifically designed to operate in the Java application environment.
The Java programming language's RMI system assumes the homogeneous environment of the Java virtual machine (JVM), and the system can therefore take advantage of the Java platform's object model whenever possible.
www.cs.ubc.ca /local/computing/software/j2sdk-1.4.2/docs/guide/rmi/spec/rmi-intro2.html   (251 words)

  
 Java 2 Remote Method Invocation Performance Analysis, Comparison and Optimization for RMI and RMI-IIOP (ResearchIndex)   (Site not responding. Last check: 2007-10-09)
Java 2 Remote Method Invocation Performance Analysis, Comparison and Optimization for RMI and RMI-IIOP
Abstract: Java and distributed object models are important for building modern, scalable, interoperable applications.
This paper is focused on the performance analysis, comparison and optimization of the most important distributed object models for Java: RMI (Remote Method Invocation) and RMI-IIOP (Remote Method Invocation over Internet Inter-ORB Protocol).
citeseer.ist.psu.edu /317373.html   (508 words)

  
 JAVA Remote Method Invocation   (Site not responding. Last check: 2007-10-09)
Each remotely invocable object must extend the `UnicastRemoteObject' and implement an interface which outlines the remotely invokable methods on that object.
When a remotely invokable object is instantiated it must register itself with a simple name server to allow other objects to obtain a reference to it.
To register with the name server, a remotely invokable object is bound to a name that can be used to get a reference to it.
www.dcs.gla.ac.uk /~ian/project/node84.html   (345 words)

  
 Java Remote Method Invocation (Java RMI)   (Site not responding. Last check: 2007-10-09)
Java Remote Method Invocation (Java RMI) enables the programmer to create distributed Java technology-based to Java technology-based applications, in which the methods of remote Java objects can be invoked from other Java virtual machines*, possibly on different hosts.
Java RMI is available for Java 2 Platform, Standard Edition (J2SE) and Java 2 Platform, Micro Edition (J2ME).
Unless otherwise licensed, code in all technical manuals herein (including articles, FAQs, samples) is provided under this License.
java.sun.com /products/jdk/rmi   (116 words)

  
 Infoseek : java remote method invocation
Java Remote Method Invocation JavaSoft Inc. March 11th, 1996 Early Access Release (alpha1) Copyright 1996, Sun Microsystems Inc. All rights reserved.
JavaSoft, a Sun Microsystems Business Downloading Instructions for RMI and Object Serialization Java Object Serialization and Java Remote Method Invocation implementations are...
Remote Objects for Java Robert Tolksdorf (tolk@cs.tu-berlin.de) Thu, 14 Mar 1996 16:12:53 +0100 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Robert...
www-cad.eecs.berkeley.edu /HomePages/Alumni/zhengyu/Titles   (246 words)

  
 Programmers Heaven - Java Remote Method Invocation - Distributed Computing for Java
Join the JCP Program and help continue the advancement of the Java platform by sharing your views, ideas and thoughts.
Learn from Sleepycat Software architect Charles Lamb as he discusses the design and implementation of Berkeley DB Java Edition, a high performance transactional database written in pure Java and designed for developers of large-scale systems.
Reproduction in whole or in part, in any form or medium without express written permission is prohibited.
www.programmersheaven.com /search/LinkDetail.asp?Typ=2&ID=9989   (321 words)

  
 MobileRMI: a toolkit for enhancing Java Remote Method Invocation with mobility (ResearchIndex)   (Site not responding. Last check: 2007-10-09)
Abstract: The benefits introduced by the use of mobile code and mobile objects have been highlighted in numerous research works, but their adoption in real-world applications is still missing.
0.5: Embedding Remote Object Mobility in Java RMI - Avvenuti, Vecchio (2001)
2 The Java Tutorial: the RMI trail (context) - Wollrath, Waldo
citeseer.ist.psu.edu /441795.html   (315 words)

  
 Sun Microsystems - Developer Home
Mobile Java Competition 2006 (German language site) The jury members for this competition, including experts from BenQ Mobile, Siemens, Sun Microsystems, and Vodafone Pilotentwicklung, are looking for the most creative MIDlet based on MIDP 2.0.
Upcoming Webinar: Stimulate Innovation With the New Sun Java Studio Enterprise 8 IDE Join us for this online event on November 8 at 10 am Pacific time, and learn how the new version of the IDE provides comprehensive model, code, tune, and deploy capabilities.
Nominations for the Java Community Process Program Executive Committee The nomination period for the open seats on the JCP Executive Committee has begun and will end on October 30.
developers.sun.com   (450 words)

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