February 2017
Intermediate to advanced
1023 pages
24h 11m
English
book
Spring: Developing Java Applications for the Enterprise
by Ravi Kant Soni, Amuthan Ganeshan, Rajesh RV
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The Service layer
So far so good, we have created a Presentation layer that contains a controller, a dispatcher servlet, view resolvers, and more. And then we created the Domain layer, which contains a single domain class Product. Finally, we created the Persistence layer, which contains a repository interface and an implementation to access our Product domain objects from an in-memory database.
But we are still missing one more concept called the Service layer. Why do we need the Service layer? We have seen a Persistence layer dealing with all data access (CRUD) related logic, a Presentation layer dealing with all web requests and view-related activities, and a Domain layer containing classes to hold information that is retrieved from database ...
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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.