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O'Reilly Tags

We're experimenting with a folksonomy based on tag data provided by del.icio.us. Follow development in this blog post.


Don't Let Hibernate Steal Your Identity (4 tags)
Hibernate has one set of ideas about how to make something unique, such as using a database sequence number as an ID. But this clashes with Java's need for implementations of equals() and hashCode() that determine identity for objects, even those that haven't yet made a trip to the database and thus can't have a sequence number. James Brundege has an option that should satisfy both Hibernate and Java.

What Is Geronimo? (3 tags)
Geronimo is Apache's open source, Java EE-compatible application server, based on a flexible system of interchangeable components. This makes it ideal for a wide range of enterprise deployments. In this article, Kunal Jaggi shows you how to get started with Geronimo.

Building J2EE Projects with Maven (3 tags)
Vincent Massol offers some real-life experience building J2EE applications with Maven. Using the example of a Petstore app, Massol shows you how to generate J2EE artifacts (EJB JARs, WARs, EARs) with Maven. He is coauthor of Maven: A Developer's Notebook.

The Hidden Gems of Jakarta Commons, Part 1 (2 tags)
The Jakarta Commons has a wide-ranging collection of handy classes that can save you the trouble of reinventing the wheel yet again. In this new series, Tim O'Brien looks at some of the more overlooked parts of the Commons and what you can do with them.

An Ant Modular Build Environment for Enterprise Applications (2 tags)
Most Java developers already use Ant for their builds, but are you getting everything you could out of this tool? With a complex enterprise application, in which classes may be used in several tiers, it's important to control where the code lives and how it gets built, so you can build .jars with just the code needed for each tier. Les Hazlewood shows how this approach leads to faster builds and downloads, and even catches errant dependencies.