I am going to build myself another example application. I find these very handy for exploring ideas. If you already have a project with hibernate, spring, gigaspaces and such setup, your much more likely to try a few ideas out, and then blog them. So for a while this blog might be more quiet than usual. I think I may use Roo to do it. Roo looks like a great platform for quickly building something up for an experiment. i.e You can throw together a new set of entities, and then build an example on top of them. Before I begin, one last thing from my current experiments.
Sometimes JPA entity classes get hijacked.
Say for instance you have a need to pass entity classes to another system, via JAXB. Its possible to use DTO objects for the transfer or you could just annotate the the entity classes. In the example below, I wanted to fetch something from a database via JPA and write it into gigaspaces. It soon gets messy your Entity classes start to become a hub in the middle of your application with things dipping into some of the classes and annotating them and throwing them here and there.
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