Key Components of the Decorator Pattern

Characteristics of the Decorator Pattern

1. Component Interface

This is an abstract class or interface that defines the common interface for both the concrete components and decorators. It specifies the operations that can be performed on the objects.

2. Concrete Component

These are the basic objects or classes that implement the Component interface. They are the objects to which we want to add new behavior or responsibilities.

3. Decorator

This is an abstract class that also implements the Component interface and has a reference to a Component object. Decorators are responsible for adding new behaviors to the wrapped Component object.

4. Concrete Decorator

These are the concrete classes that extend the Decorator class. They add specific behaviors or responsibilities to the Component. Each Concrete Decorator can add one or more behaviors to the Component.

Introduction to Decorator Pattern in C++ | Design Patterns

The Decorator Pattern is a structural design pattern in software engineering that enables the dynamic addition of new behaviors or responsibilities to individual objects without altering their underlying class structure. It achieves this by creating a set of decorator classes that are used to wrap concrete components, which represent the core functionality.

Important Topics for the Decorator Pattern in C++ Design Patterns

Characteristics of the Decorator Pattern
Key Components of the Decorator Pattern
Use Cases for the Decorator Pattern
EXAMPLES of the Decorator Pattern in C++
Advantages of the Decorator Pattern in C++ Design Patterns
Disadvantages of the Decorator Pattern in C++ Design Patterns