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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Scalability and Distribution
Since Aggregates don’t use direct references to other Aggregates but reference by identity, their persistent state can be moved around to reach large scale. Almost-infinite scalability is achieved by allowing for continuous repartitioning of Aggregate data storage, as explained by Amazon.com’s Pat Helland in his position paper “Life beyond Distributed Transactions: An Apostate’s Opinion” [Helland]. What we call Aggregate, he calls entity. But what he describes is still an Aggregate by any other name: a unit of composition that has transactional consistency. Some NoSQL persistence mechanisms support the Amazon-inspired distributed storage. These provide much of what [Helland] refers to as the lower, scale-aware layer. ...
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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.
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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.