Bridge

The Bridge pattern is a design pattern whose basic principle is to separate a changing (unstable) interface from a changing implementation of this interface. The Adapter design pattern deals with a similar idea, however, it separates a predefined stable interface from an implementation which changes from time to time. Bridge expects that both the implementation of a system component and the abstract interface the client is using to work with this component will change. It builds an imaginary "bridge" between these varying parts. This is one of the more complicated design patterns, let's go through it

Motivation

Larger information systems are separated into modules which can be developed by different development teams. If two communicating modules often change over time, it makes sense to build an abstract interface on both sides so that changing the interface of one module doesn't force the second module to adapt to this change and vice versa.

Pattern

You've probably already read somewhere on our network that interfaces are especially used in more complex projects. Bridge defines not one, but two interfaces at one place in the application, making it really suitable for robust projects. It introduces the following interfaces:

...End of the preview...

Premium article

ict.social is a large database made up of manuals and tutorials, whose main goal is to provide high-quality IT education to everyone. We started out in the Czech republic, where we display roughly a million articles per month and receive plenty of gratitude from our users. Thanks to our successful establishment, we are now bringing these articles to the rest of the world.

Although we are trying to keep our content free of charge, maintaining the site is a huge effort for everyone involved. Therefore, some content (exercises and more advanced material) costs network points. Don't worry, they're really cheap :)

Article description

Requested article covers this content:

The Bridge pattern separates an unstable interface from an unstable implementation of this interface. Unlike Adapter, it assumes changes on both sides.

Limited offer: Learn all knowledge and save money

	Buy articles and tests separately one by one	~~20 points~~
	Buy all currently available articles in the section including all features for an exclusive price	17 points
Currently, you have		0 points
By buying this exclusive package, you'll have access to all 7 articles in this course including exercise submitting while saving $0.27. This offer is limited for the first articles only with an additional exclusive 15% discount.
You gain 17 points for adding an article to the site, or for		~~$1.80~~ $1.53

Buy just this article

Buying this article gives you unlimited access to it forever. You will learn some more and help us keep giving our site maintenance which helps you and others get better futures. It's a win-win.

This article is licensed: Premium, by buying this article, you agree with the terms of use.

You gain points by supporting our network. This is done by sending a helpful amount of money to support the site, or by creating content for the network.

You can get points immediately using:


Credit card	SMS	Wire transfer

Article has been written for you by David Capka

The author is a programmer, who likes web technologies and being the lead/chief article writer at ICT.social. He shares his knowledge with the community and is always looking to improve. He believes that anyone can do what they set their mind to.

The author learned IT at the Unicorn College - a prestigious college providing education on IT and economics.

Activities (2)

	To access the article, you need	10 points
Currently, you have		0 points
You gain 10 points for adding an article to the site, or for		$0.90