February 2013
Intermediate to advanced
656 pages
21h 26m
English
Content preview from Implementing Domain-Driven DesignBecome 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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Roles and Responsibilities
An aspect of modeling is to discover the roles and responsibilities of objects. Role and responsibility analysis is applicable to domain objects in general. Here we look specifically at the roles and responsibilities of Entities.
We need some context for the term role. One use, when discussing the Identity and Access Context, is that a Role is an Entity and Aggregate Root that addresses a broad system security concern. Clients can ask if a user is in, or plays, a security role. That’s completely different from what I am now discussing. What I am discussing in this section is how roles can be played by the objects in your model.
Domain Objects Playing Multiple Roles
In object-oriented programming, generally interfaces ...
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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.