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🔔 Subscribe to Ram N JavaWhat is a Remote Proxy Design Pattern?
In distributed computing, client applications frequently need to communicate with services located on another machine or network space. The Remote Proxy Pattern provides a local representative (a surrogate or stub) for an object that lives in a different address space. To the client, interacting with the proxy feels just like calling a local method.
How the Remote Proxy Operates
- Client Object: Interacts with the proxy through a standard interface, remaining completely unaware of network complexities.
- Remote Proxy (Client Stub): Packages method arguments into a format suitable for transport (marshalling/serialization) and sends them over the network.
- Network Communication Layer: Dispatches the call across TCP/IP or HTTP protocols to the host machine.
- Real Subject (Server Skeleton): Unmarshalls the parameters, executes the actual business logic, and returns the result back through the proxy to the caller.
Key Advantages of Remote Proxies
- Location Transparency: Your client code stays simple and decoupled from IP addresses, ports, and networking protocols.
- Encapsulated Network Handling: Serialization, socket management, timeouts, and connection errors are handled within the proxy infrastructure.
- Standardized Communication: Widely used in distributed technologies like Java RMI, gRPC, and RPC systems.
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| Proxy Design pattern - Implementation [Remote Proxy] |
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