db-jdo-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Richard Schilling <rschill...@cognitiongroup.biz>
Subject Re: greetings and question about data stores
Date Sat, 04 Aug 2007 05:41:53 GMT

This is perfect.  Thanks - a must read.  I may be called upon to develop 
a new datastore adapter soon, and this gives me a great place to start.


Erik Bengtson wrote:
> Richard,
> If you are searching for the internals of a JDO implementation, you can read the
> JPOX internals at
> http://jpox.cvs.sourceforge.net/*checkout*/jpox/JPOX/xdocs/1_1/developer/jpox-core.odp
> Regards,
> Quoting Richard Schilling <rschilling@cognitiongroup.biz>:
>> I did realize that the JDO API and the model in the apache code was just
>> the implementation of the spec.  What I'm after is to make sure I
>> understand what parts of the API (which interfaces) are used by a
>> specific implementation to cause classes to be committed to the data
>> store.  It looks like the transactions defined in the spec serve this
>> purpose, but there's so much information I can't be sure.
>> Thanks ... still getting my head around the JDO spec - I've even read
>> the JDO book which I have.
>> Cheers.
>> Richard
>> Matthew T. Adams wrote:
>>> Hi Richard,
>>> Apache JDO is the home of the JDO API (the interface & class files of the
>>> specification) & TCK (the code that tests whether a JDO implementation is
>>> compliant with the specification); none of the code here actually writes to
>>> a database*.  The reference implementation for JDO 2.0 is JPOX
>>> (www.jpox.org) -- it is an implementation of the JDO 2.0 API.  There are
>>> also many other implementations of JDO out there.
>>> HTH,
>>> Matthew
>>> *:  There is a legacy reference implementation called FOStore (pronounced
>>> like "foster") that was used as the JDO 1.0, but I don't think that's used
>>> much anymore.  Others can comment on that.
>>> -----Original Message-----
>>> From: Richard Schilling [mailto:rschilling@cognitiongroup.biz]
>>> Sent: Tuesday, July 31, 2007 10:22 AM
>>> To: jdo-dev@db.apache.org
>>> Subject: greetings and question about data stores
>>> Greetings.  This is my first post to the list.
>>> I would like to know about the code base itself.  There is not any
>>> documentation that discusses the structure of the code itself and how
>>> the software interacts with the data store.
>>> Can any one tell me what source code files actually contain the code
>>> that writes to the data store?
>>> Thanks!
>>> Richard Schilling

View raw message