January 2020
Intermediate to advanced
532 pages
13h 31m
English
Content preview from Hands-On Design Patterns and Best Practices with Julia
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The composite pattern
The composite pattern is used to model objects that can be grouped together and yet be treated the same as individual objects. This is not an uncommon case—for example, in a drawing application, we might be able to draw different kinds of shapes, such as circles, rectangles, and triangles. Every shape has a position and size so we can determine where they are located on screen as well as how large they are. When we group several shapes together, we can still determine the position and size of the large, grouped object. Additionally, resize, rotate, and other transformation functions can be applied to individual shape objects as well as grouped objects.
A similar situation happens with portfolio management. I have a retirement ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.