Use Cases of Facade Method Design Pattern in Java

• Simplifying Complex Libraries: When working with complex libraries or frameworks, a facade can provide a simplified interface to a subset of functionalities, making it easier for developers to interact with the library without dealing with its intricacies.
• Legacy Code Integration: When integrating new code with existing legacy systems, a facade can act as an interface to the legacy code. This shields the new code from the complexities of the legacy system and provides a cleaner interface.
• Subsystem Abstraction: In applications with multiple subsystems, each handling specific aspects of the overall functionality, a facade can be used to abstract the interactions between these subsystems. This simplifies the usage and understanding of the subsystems.
• Library Wrappers: When using external libraries or APIs, a facade can be implemented to wrap the library’s functionality, providing a simpler and more cohesive interface that aligns with the needs of the application.
• Security Layers: In systems with complex security implementations, a facade can centralize and simplify security-related operations. This ensures that security policies are consistently applied throughout the application.

Facade Method Design Pattern is a structural design pattern that provides a simplified interface to a complex subsystem. It acts as a “front door,” concealing the internal complexity of the subsystem and making it easier for clients to interact with it. In this article, we will get to know about what is Facade Method Design Pattern in Java, and why we need Facade Method Design Pattern in Java, with the help of a problem statement and solution