Command design pattern
To finish with this chapter, we will see also the Command pattern--a tiny design pattern but still frequently used. You need a way to connect types that are really unrelated? So design a Command for them.
Description
The Command design pattern is quite similar to the Strategy design pattern but with key differences. While in the strategy pattern we focus on changing algorithms, in the Command pattern, we focus on the invocation of something or on the abstraction of some type.
A Command pattern is commonly seen as a container. You put something like the info for user interaction on a UI that could be click on login and pass it as a command. You don't need to have the complexity related to the click on login action in the command ...
Get Go: Design Patterns for Real-World Projects now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
