Hi Andreas,
Not sure if you got my previous e-mail?
If you want, I can send you BaseX XQJ 1.3 which has a local/embedded implementation of XQDataSource?
The only reason for not releasing it officially was because of being extremely busy with other things like XML London and writing further documentation for the XQJ drivers.
Kind Regards,
Charles
On 18 Jun 2013, at 17:13, Andreas Rulle andreas.rulle@nexoma.de wrote:
Hello Christian,
thank you for your quick response.
Your hint to the possibility to sponsor this feature has been discussed with the management.
At the beginning of the road is was important for us to have XQJ as a JDBC like interface for a looser coupling of the components.
Now, after building more and more trust into the BaseX, the direct access to the evolving feature set of the BaseX database seems to have become more important.
During the mentioned discussion the decision evolved to directly use the BaseX-Api and substitute the XQJ dependency for the embedded components in one of our next iterations.
Sounds like an effect of the familiar embrace and extend strategy, see [1], of a well known software company ;-)
With best regards,
Andreas
Hi Andreas,
in the last weeks, Charles Foster has been pretty busy organizing the fabulous XMLLondon Conference that just took place last weekend [1]. He may have more time to focus on the embedded version of XQJ in the upcoming months. If you believe it’s helpful for your product, and if you would be interested to sponsor the feature, feel free to contact us for more details.
Best, Christian
[1] http://xmllondon.com ___________________________
2013/6/18 Andreas Rulle andreas.rulle@nexoma.de:
Hello Christian,
your BaseX database is with RESTXQ on very interesting road towards xquery based web applications and the Unit Module puts XQuery into a new software engineering perspective!
While this application field naturally leads to a client/server architecture we have an expanding row of usages of BaseX in embedded mode, see for example [1].
At the moment the Basex 7.7 still has basex-xqj-1.2.3.jar.
Question: Are there plans to update to the upcoming (?) version basex-xqj-1.3.jar?
With best regards,
Andreas
[1] See slide 21 in PBSeasy - Magento und Big Data, http://www.meet-magento.de/programm/andreas-rulle-programm-meet-magento.html, Abruf 18.06.2013
Hello Charles,
thank you for your detailed answer.
Your answer enables us to make an "informed decision".
We have been interested in a bug-fix in that is contained in BaseX 7.3. But there is a logical workaround for this.
This workaround is better than to dismiss XQJ now and change the architecture of the software.
With our answer we can wait with an update of BaseX until XQJ 1.3 is there, because it will come in the "near future".
With best regards
Andreas
Hi Andreas,
A local / embedded version of BaseX XQJ, (i.e. no Socket connection) is planned for BaseX XQJ 1.3
The primary aim will be to have as much compatibility as possible with the client/server based version [1]
This is not a quick job and I wouldn't expect anything soon. Perhaps in the next 2 months or so.
In the meantime, I suggest that you at least test your software against the Client / Server XQJ driver, because although unlikely, there "may" be differences in behaviour between the the version of BaseX XQJ driver you're currently using and the XQJ.NET implementation.
If your code needs to change as a result of switching drivers, you will get foresight on those changes in advance.
Kind Regards,
Charles
On 24 October 2012 12:41, Christian Grün christian.gruen@gmail.com wrote:
Hi Andreas,
as you correctly observed, the old XQJ implementation has been discontinued, and our current XQJ implementation is based on the client/server architecture. We already thought about providing a local version as well. The (closed source) implementation would be completely up to Charles Foster, and I imagine it could take some time to finalize, so please don't expect any short-term miracles. Charles might give you more details just in case.
Christian ___________________________
On Wed, Oct 24, 2012 at 12:53 PM, Andreas Rulle andreas.rulle@nexoma.de wrote:
Hello BaseX-Team,
this mail informs you about the further steps that have been done in this point:
- Search for source code
I have not been able to find the source code for basex-xqj-1.2.3.zip. A question would be if the source code for this module is available. (Just find the answer to the question "in the source code").
- JavaDoc
The JavaDoc says:
"This implementation internally creates Socket connections with a BaseX Server" see [1]
From point 2. I would conclude that it is not possible to use a local/"embedded" database with the new XQJ.
With best regards,
Andreas
[1] basex-xqj-1.2.3/doc/javadoc/net/xqj/basex/BaseXXQDataSource.html
Hello BaseX-Team,
it is great to see the vibrant evolution of your BaseX development.
We have a component that is at the moment on (the now outdated) BaseX 7.0.2 and the component uses
- local databases (to make it as independent as possible from the
environment where it runs)
- and XQJ.
Now we want to migrate this component to BaseX 7.3/BaseX 7.5.
But all the examples of the new (1.2.x) version of basex-xqj use the client server architecture, and it is stressed in the documentation:
"BaseX XQJ communicates with a BaseX Server via a client-server architecture, where BaseX XQJ acts as the client and the BaseX XML Database acts as the server.", see page 3 in [1]
Question:
Can BaseX 7.3/BaseX7.5 access a local database with XQJ?
With best regards
Andreas
[1] BaseX XQJ Documenation, Version 1.2.3, 1th October 2012
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