I try to speed up our JUnit tests. They often involve persisting and retrieving data from our Oracle database.

Because we use CMP, this process is slow.

I read about in-memory databases like Cloudscape. But it is not a free product. Is there a free alternative?

Does Oracle provide such a in-memory support?

What do you think about the in-memory persistence approach?

Are there any good tutorials or best practices for it in the context of J2EE/CMP?

Hi Hans,

It is neither free or a database but this is exactly the issue that most of our customers use Coherence to solve. The cache can be 'bound' to a database for read-through and write-behind of the data.

Later,
Rob Misek
Tangosol Coherence: Cluster your Work. Work your Cluster.
Coherence Forums.

Hi Hans,

You can try using Hsql.

http://sourceforge.net/project/showfiles.php?group_id=23316&release_id=95459

Thanks

I have seen comparisons of Derby and HSQL . But is cloudscape an in memory database? How do derby abd HSQL compare as in memory databases?

Thanks