Looking forward to JPA2
Posted in data access on Apr 28th, 2008
A new article by Mike Keith (Oracle / Toplink). He introduces some new cool features of JPA2.
Monthly Archive for April, 2008
OpenXava
Posted in data access on Apr 28th, 2008
http://java.dzone.com/announcements/openxava-301-jpa-application-e
I like the notion of fully-automated UI tool, not based on source-code generation, like NakedObjects, JMatter, etc.
XIC has its own solution for that, Navilis, which is a component bundled within Xcalia Studio. The main goal is to quickly validate your business model and the corresponding data access layer (mappings, transformations, etc.). It is a little [...]
Distributed document databases
Posted in data access on Apr 28th, 2008
There is now a kind of global acknowledgement that RDBMS are not well-suited for all new business applications in SOA. I’ve already mentioned new databases like SimpleDB or Vertica the new project from Michael Stonebraker.
Here is a collection on links about DDD (distributed document databases):
StrokeDB (for Ruby)
http://www.infoq.com/news/2008/04/distributed-db-strokedb
http://strokedb.com/
http://strokedb.com/euruko2008.pdf (nice and innovating kind of presentation)
http://rashkovskii.com/articles/2008/2/14/strokedb-short-intro
CouchDB (written in Erlang)
http://www.infoq.com/news/2007/11/the-rdbms-is-not-enough
http://incubator.apache.org/couchdb/
http://incubator.apache.org/couchdb/docs/intro.html
http://incubator.apache.org/couchdb/docs/overview.html
RDDB (sub-project of [...]
Amazon adds persistent Storage to EC2
Posted in data access on Apr 28th, 2008
http://www.infoq.com/news/2008/04/amazon-storage
The competition between Amazon, Google and Microsoft around cloud computing is tough.
It is just a raw storage space (e.g. file system) added to EC2, you can use it as you prefer, for instance you can use it to allocate DBMS files. Obviously these storages are persistent, they remain usable after the termination of one EC2 instance.
The [...]
JPOX becomes DataNucleus
Posted in data access on Apr 28th, 2008
http://www.theserverside.com/news/thread.tss?thread_id=49181
http://www.datanucleus.org/index.html
They will now add support for new kind of data sources like LDPA, XML and Excel files on top of already supported RDBMS and db4o.
But what is much more important is they are moving towards a Platform.
They are clearly going in the right direction, like Toplink or XIC. It is very exciting to see the market is [...]
Entity Framework Tutorial
Posted in data access on Apr 17th, 2008
Good introduction to the Entity Framework, by Julia Lerman (theDataFarm).
Another article, EDM: beyond the Basics seen on DataDeveloper.Net, by Matthieu Mezil.
And this introduction to EDM, by Michael Pizzo.
What strikes me with EF and EDM is that all examples are using the bottom-up approach (from the database schema to a business model). I suppose one can use other [...]