In the last chapter we explored the mechanics involved in crossing the border between Java and Ruby. As you no doubt have learned, there are several tricky things to keep in mind. In this chapter we'll start looking at the first application in the book that uses Java libraries actively, instead of just relying on JDBC and otherwise doing things the Ruby way.

We'll take a look at the basic parts of a content management system, called CoMpoSe. This system isn't a full-fledged Content Management System (CMS). First of all, most help texts are missing. A few other areas also should be improved before deploying it in production. However, CoMpoSe will still serve to illustrate how a Rails application that uses Java can work. Further, ...

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