December 2014
Beginner
584 pages
15h 13m
English
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Chapter 16. Advanced Topics
This chapter introduces some of the more advanced things that can be done with eXist, such as scheduled tasks, triggers, and internal modules. Many, although not all, of the examples in this chapter are developed in Java as plugins to eXist. We do not attempt to teach Java in any way in this chapter; rather, where the examples are in Java, we have tried to make them simple, self-explanatory, and easily useable so that even those without Java experience can learn and make use of them. However, some programming experience would undoubtedly assist you.
Warning
If you wish to extend and use additional external libraries for the
Java projects in this chapter whose code is deployed into $EXIST_HOME/lib/user, then if eXist also uses
the same library (consult the files in the subfolders of $EXIST_HOME/lib), you must ensure that you use
exactly the same version of the library as provided with eXist. To achieve
this, you must set the correct version
on the dependency in your pom.xml file and also set the scope of the dependency to provided. This is required because your Java
code will be running in the same JVM as eXist and therefore uses the same
class loader; in this manner of operation, it is only possible to have a
single version of a specific class.
XQuery Testing
Creating tests to assert the correctness of your code and to prevent regressions in the future can be desirable for many reasons. Over the last decade there has been a serious focus within software engineering ...
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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.