January 2015
Intermediate to advanced
212 pages
4h 22m
English
Content preview from Mastering Python Design PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Use cases
Flyweight is all about improving performance and memory usage. All embedded systems (phones, tablets, game consoles, microcontrollers, and so forth) and performance-critical applications (games, 3D graphics processing, real-time systems, and so forth) can benefit from it.
The Gang Of Four (GoF) book lists the following requirements that need to be satisfied to effectively use the Flyweight Pattern [GOF95, page 221]:
- The application needs to use a large number of objects.
- There are so many objects that it's too expensive to store/render them. Once the mutable state is removed (because if it is required, it should be passed explicitly to Flyweight by the client code), many groups of distinct objects can be replaced by relatively few shared ...
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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.
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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.