Structural design patterns are a type of design pattern that deal with object composition and the structure of classes and objects. They help ensure that when a change is made in one part of a system, it doesn't require changes in other parts. This makes the system more flexible and easier to maintain.
Structural Design Patterns
It allows classes with incompatible interfaces to work together. It wraps itself around an object and exposes a standard interface to interact with that object.
It decouples an abstraction from its implementation, so that the two can vary independently. It promotes loose coupling by enforcing forward compatibility.
It is used to simplify the use of complex systems. It defines a group of objects that can be treated in the same way as a single instance of the same type of object.
It is used to add new functionality to an existing object, without altering its structure. It's a structural pattern as it involves a set of decorator classes that are used to wrap concrete classes.
It provides a simplified interface to a complex subsystem. Rather than making the client code interact with various subsystem interfaces, it provides a single unified interface.
It minimizes memory use by sharing as much data as possible with related objects. It's a way of using objects in large numbers when a simple repeated representation would use an unacceptable amount of memory.
It provides a surrogate or placeholder for another object to control access to it. This pattern is used, when we want to involve some kind of controls to the access of an object.
Structural design patterns provide guidelines to connect different objects and classes to form larger structures and provide new functionality, while keeping these structures flexible and efficient. They are essential to make sure the system architecture is well-structured, scalable, and manageable.
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