April 2018
Intermediate to advanced
202 pages
4h 48m
English
Content preview from Data-Centric Applications with Vaadin 8
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Generating a report in a background task
Report generation may involve expensive computation due to large amounts of data, connections to external systems, and data processing. In many situations, report data is gathered directly from the original source, typically an SQL database. This has two clear drawbacks. The first problem is that as the application runs, more and more data is added into the database, making reports run slower with time. The second problem is that report generation may heavily use the database at certain times, interfering with the usage of other parts of the application.
One step toward improving this situation is to progressively and continuously generate the data required for reporting. For example, consider the ...
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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.