A typical implementation model of Java-RMI using Stub and Skeleton objects. Since Java 2 SDK, Standard Edition, v1.2 there is no need of Skeleton.

The Java Remote Method Invocation API, or Java RMI, is a Java application programming interface for performing the object equivalent of remote procedure calls. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Look up Stub in Wiktionary, the free dictionary. ... This article does not cite any references or sources. ... An application programming interface (API) is a source code interface that a computer system or program library provides to support requests for services to be made of it by a Length. ... Java is a programming language originally developed by Sun Microsystems and released in 1995. ... Remote procedure call (RPC) is a protocol that allows a computer program running on one computer to cause a subroutine on another computer to be executed without the programmer explicitly coding the details for this interaction. ...

There are two common implementations of the API. The original implementation depends on Java Virtual Machine (JVM) class representation mechanisms and it thus only supports making calls from one JVM to another. The protocol underlying this Java-only implementation is known as Java Remote Method Protocol (JRMP). In order to support code running in a non-JVM context, a CORBA version was later developed. Usage of the term RMI may denote solely the programming interface or may signify both the API and JRMP, whereas the term RMI-IIOP, read RMI over IIOP, denotes the RMI interface delegating most of the functionality to the supporting CORBA implementation. A Java Virtual Machine (JVM), originally developed by Sun Microsystems, is a virtual machine that executes Java bytecode. ... JRMP, or Java Remote Method Protocol is the Java technology-specific protocol for looking up and referencing remote objects. ... The Common Object Request Broker Architecture (CORBA) is a standard defined by the Object Management Group (OMG) that enables software components written in multiple computer languages and running on multiple computers to interoperate. ... RMI-IIOP (read RMI over IIOP) denotes the Java RMI interface over the CORBA system. ... IIOP, the Internet Inter-Orb Protocol, is a protocol for communication between CORBA ORBs that has been published by the Object Management Group. ... In computing, Common Object Request Broker Architecture (CORBA) is a standard for software componentry, created and controlled by the Object Management Group (OMG). ...

The original RMI API was generalized somewhat to support different implementations, such as an HTTP transport. Additionally, work was done to CORBA, adding a pass by value capability, to support the RMI interface. Still, the RMI-IIOP and JRMP implementations are not fully identical in their interfaces. Hypertext Transfer Protocol (HTTP) is a communications protocol used to transfer or convey information on the World Wide Web. ...

The package name is java.rmi. Note that with Java versions up to 5.0 it was necessary to compile RMI stubs in a separate compilation step using rmic. Version 5.0 of Java and beyond no longer require this step.

See also

• Serialization#Java

In computer science, in the context of data storage and transmission, serialization is the process of saving an object onto a storage medium (such as a file, or a memory buffer) or to transmit it across a network connection link, either in binary form, or in some human-readable text...

External links

• The Java RMI tutorial - a very good starting point to learn RMI. Also check the Hello World in RMI
• The RMI page in the JDK docs
• java.rmi (Sun's Java API Reference for the RMI package)
• The RMI forum on java.sun.com
• Cajo A framework for transparent, dynamic cooperation between Java Virtual Machines
• The RMI Plug-in for Eclipse Helpful for debugging RMI applications in Eclipse. (The RMI compilation feature of the plugin is no longer required in Java 5.0 and above)
• RMI-Users mailing list - Not very active
• Transparent RMI
• RMIProxy A RMI/SSL solution.
• RMI Doves Socket Factory: RMI including callbacks over the Firewalls and Proxy Servers
• LipeRMI. An alternative, free and lightweight RMI implementation with an Internet approach - Allowing method invocation through many JVM and callbacks even if clients are behind local networks, NAT or even firewalls.