June 2018
Intermediate to advanced
316 pages
6h 34m
English
Content preview from Mastering High Performance with Kotlin
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Preventing Unnecessary Overhead Using Delegates
Delegation is an extremely powerful pattern in which a delegating object assigns authority to a delegate object. The delegating object keeps a reference to the delegate object and dispatches messages to it.
Dispatch, or message passing, is a concept in object-oriented programming by means of which one object invokes the method of another.
The delegating object uses the delegate object to provide an interface that's similar to an interface of the delegate. In some cases, the delegating object can send a message to the delegate object to just update its own state or that of another object. This is shown in the following diagram:
In other cases, the delegating object assigns responsibility for ...
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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.