What is Proxy Pattern?
Proxy Pattern
A proxy pattern is a design pattern that provides a surrogate or placeholder for another object to control access to it. This allows for additional functionality, such as lazy initialization, access control, or logging, without changing the original object.
Overview
The proxy pattern acts as an intermediary between a client and a target object. It allows the proxy to manage the access to the target, which can be useful for various reasons such as performance optimization and security. For example, in a video streaming service, a proxy can be used to cache video data, reducing the need to repeatedly fetch the same content from the server, thus improving load times and reducing bandwidth usage. In software development, the proxy pattern can simplify interactions with objects that are expensive to create or manage. Instead of directly working with a complex object, developers can use a proxy that handles the necessary operations, such as authentication and resource management. This not only enhances performance but also promotes cleaner and more maintainable code by separating concerns. The importance of the proxy pattern lies in its ability to introduce additional functionality without modifying the original object. This is particularly valuable in large systems where changes can have wide-reaching effects. By using a proxy, developers can extend or modify behavior in a controlled way, ensuring that the core logic remains intact while enhancing the overall system capabilities.