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okay, let's break down the concept of rmi (remote method invocation) within the context of distributed systems, drawing from the structure you might find in a lecture like "lec 23" by bhanu priya. we'll cover the architecture, key components, the flow of execution, considerations, and provide a code example.

*lecture 23: remote method invocation (rmi) in distributed systems*

*introduction*

in distributed systems, we often have processes/objects residing on different machines that need to communicate and interact. rmi provides a mechanism for one object (the *client*) to invoke methods on another object (the *server*) that resides on a different java virtual machine (jvm), potentially running on a different physical machine. it's like making a local method call, but the actual code execution happens remotely.

*key goals of rmi*

*transparency:* make remote method calls appear as similar as possible to local method calls. the client code shouldn't have to deal with low-level networking details.
*abstraction:* hide the complexities of inter-process communication, allowing developers to focus on the business logic of the application.
*platform independence:* (java-specific) leverage the "write once, run anywhere" nature of java to enable distributed java applications to work across different operating systems and hardware.
*simplicity:* provide a relatively straightforward api for creating and using remote objects.

*rmi architecture*

the rmi architecture consists of several key components that work together to enable remote method invocation:

1. *remote interface:* this is a java interface that defines the methods that can be invoked remotely by clients. the interface must extend `java.rmi.remote`. each method in the interface must declare that it can throw `java.rmi.remoteexception`.

2. *remote implementation (server):* this is a java class that implements the remote interface. it contains the actual implementa ...

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RMI architecture
distributed systems
remote method invocation
object serialization
Java RMI
client-server model
network communication
middleware
remote object access
distributed computing
fault tolerance
scalability
service-oriented architecture
inter-process communication
Java programming