September 2023
Intermediate to advanced
438 pages
10h 8m
English
Content preview from Designing Hexagonal Architecture with Java - Second Edition
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11
Leveraging CDI Beans to Manage Ports and Use Cases
Quarkus provides its own dependency injection solution called Quarkus DI. It stems from the Contexts and Dependency Injection (CDI) for Java 2.0 specification. We employ CDI to delegate the responsibility of providing object instances to an external dependency and managing their life cycle across an application. Several dependency injection solutions on the market take such responsibility. Quarkus DI is one of them.
The value of using a dependency injection mechanism is that we no longer need to worry about how and when to provide an object instance. A dependency injection solution enables us to automatically create and provide objects as dependencies in classes that depend on those objects, ...
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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.