February 2016
Beginner to intermediate
164 pages
3h 25m
English
book
Learning Python Design Patterns - Second Edition - Second Edition
by Chetan Giridhar, Gennadiy Zlobin
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The Factory Method pattern
The following points help us understand the factory method pattern:
- We define an interface to create objects, but instead of the factory being responsible for the object creation, the responsibility is deferred to the subclass that decides the class to be instantiated.
- The Factory method creation is through inheritance and not through instantiation.
- The Factory method makes the design more customizable. It can return the same instance or subclass rather than an object of a certain type (as in the simple factory method).
A UML diagram for the Factory method
In the preceding UML diagram, we have an abstract class, Creator, that ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.