Description: The Extension Object pattern allows adding new functionality to existing objects without modifying their structure. This pattern is particularly useful in systems where flexibility and extensibility are crucial, as it enables developers to add additional features to objects without altering their base code. The essence of the pattern lies in creating an extension object that is associated with the original object, allowing the new behavior to integrate smoothly. This not only promotes code reuse but also facilitates maintenance, as modifications can be made in the extension object without affecting the main object. Furthermore, the Extension Object pattern is compatible with other design patterns, making it a versatile tool in software architecture. Its implementation can vary, but it generally involves the use of interfaces or abstract classes that define the additional behavior, allowing developers to customize functionality according to the specific needs of various projects. In summary, the Extension Object pattern is an elegant solution for expanding capabilities in complex systems, promoting a cleaner and more modular design.
