The Composite pattern is a structural design pattern that allows you to compose objects into tree structures and represent part-whole hierarchies. It involves creating a common interface for both individual objects and groups of objects, and using recursion to traverse the object hierarchy. This pattern is useful when you need to work with complex hierarchies of objects and treat them uniformly. Example Here’s an example of how to implement the Composite pattern in Python:...
The Bridge pattern is a structural design pattern that decouples an abstraction from its implementation, allowing them to vary independently. It involves creating two separate hierarchies, one for the abstraction and one for the implementation, and using composition to link them together. This pattern is useful when you need to separate the interface of an object from its implementation, or when you need to support multiple implementations of an object....
The Adapter pattern is a structural design pattern that allows incompatible interfaces to work together by creating a bridge between them. It involves creating an adapter class that wraps an existing class and provides a compatible interface that other classes can use. This pattern is useful when you need to reuse existing classes that have different interfaces, or when you need to integrate third-party libraries into your application that have incompatible interfaces....
The Singleton pattern is a creational design pattern that ensures that a class has only one instance and provides a global point of access to that instance. This pattern is useful when you need to limit the number of instances of a class to one, and when you want to provide a single point of access to that instance throughout your application. Example Here’s an example of how to implement the Singleton pattern in Python:...
Design patterns in software engineering are reusable solutions to common problems that arise in software development. One such design pattern is the Prototype Design Pattern, which is used to create new objects by cloning existing objects. In this article, we will explore what the Prototype Design Pattern is, when to use it, examples, pros and cons, and related design patterns. What is the Prototype Design Pattern The Prototype Design Pattern is a creational design pattern that allows the creation of new objects by copying existing objects....