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The bridge pattern can also be thought of as two layers of abstraction. When there is only one fixed implementation, this pattern is known as the Pimpl idiom in the C++ world. The bridge pattern is often confused with the adapter pattern, and is often implemented using the object adapter pattern; e.g., in the Java code below.
A road is not an implementation of a car. For that matter, I would avoid using any automotive analogies here. Consider a real-world bridge-- i.e., a structure allowing a road (and therefore cars) to pass over an obstruction. This has little to do with the Bridge pattern, so examples involving cars and roads are likely to just confuse the reader.
Comparison of C Sharp and Java; Class (computer programming) Closure (computer programming) Command pattern; Command-line argument parsing; Comment (computer programming) Comparison of programming languages (algebraic data type) Composite entity pattern; Composite pattern; Conditional operator; Constant (computer programming) Continuation ...
Adapter Java Design Patterns - Adapter; Delegation, strongly relevant to the object adapter pattern. Dependency inversion principle, which can be thought of as applying the adapter pattern, when the high-level class defines its own (adapter) interface to the low-level module (implemented by an adaptee class). Ports and adapters architecture; Shim
In software engineering, structural design patterns are design patterns that ease the design by identifying a simple way to realize relationships among entities. Examples of Structural Patterns include: Adapter pattern: 'adapts' one interface for a class into one that a client expects Adapter pipeline: Use multiple adapters for debugging ...
Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns. The book was written by Erich Gamma , Richard Helm , Ralph Johnson , and John Vlissides , with a foreword by Grady Booch .
Design for type safety: Child-related operations are defined only in the Composite class. Clients must treat Leaf and Composite objects differently. But type safety is gained because clients cannot perform child-related operations on Leaf objects. The Composite design pattern emphasizes uniformity over type safety.
The builder pattern is a design pattern that provides a flexible solution to various object creation problems in object-oriented programming.The builder pattern separates the construction of a complex object from its representation.