Applying Proxy Pattern for Better Performance
Proxy pattern is a design pattern widely used in many software applications to optimize performance. This pattern enables communication between two objects by introducing a third object, called a proxy, which acts as an interface between the original object and its clients. The proxy pattern is highly effective in reducing the overhead of object creation and improving the overall performance of an application. In this article, we will explore the implementation of the proxy pattern in Java and how it can be used to enhance application performance.
Implementing the Proxy Pattern in Java for Improved Efficiency
Implementing the Proxy pattern in Java requires the creation of three objects: the original object, the proxy object, and the client object. The proxy object is responsible for communicating with the client object and forwarding the client's request to the original object. The proxy object also handles any additional processing required before forwarding the request. This design pattern is commonly used when the original object is too expensive to create or when the client needs access to the original object.
One of the most popular types of proxy patterns is the Remote Proxy pattern, which enables communication between objects located in different JVMs. This pattern creates a proxy object that acts as a local representative of the remote object, and all communication between the client and the remote object is routed through the proxy object. This implementation allows for efficient communication between objects in distributed systems, as it reduces network overhead and improves performance.
Another type of Proxy pattern is the Virtual Proxy pattern, which creates a proxy object that represents a resource-intensive object, such as an image or a document. The proxy object is responsible for loading the resource from disk or network only when it is needed by the client object. This approach improves application performance by reducing resource consumption and minimizing delays caused by resource loading.
In conclusion, the Proxy pattern is a highly effective design pattern that can be used to improve application performance. It enables communication between objects by introducing a third object that acts as an interface between them. This pattern is commonly used when the original object is too expensive to create or when the client needs access to the original object. Implementing the Proxy pattern in Java requires the creation of three objects: the original object, the proxy object, and the client object. By using the Proxy pattern, developers can optimize application performance, reduce resource consumption, and minimize delays caused by resource loading.
Reference : Effective Java: Applying the Proxy Pattern for Better Performance