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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ORM and Many Values Serialized into a Single Column
There are unique challenges associated with mapping a collection of many Value Objects into a relational database using an ORM. To be clear, by collection I mean a List or Set that is held by an Entity and contains zero, one, or more Value instances. The challenges are not insurmountable, but the object-relational impedance mismatch becomes glaringly obvious here.
One option available with Hibernate object-relational mapping is to serialize the entire collection of objects into a textual representation and persist the representation into a single column. This approach has some drawbacks. However, in some cases the drawbacks are unobtrusive and may be summarily ignored in favor of leveraging ...
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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.