[teiid-dev] Teiid In JCA Container

[Ramesh Reddy]

Jesper's Response..
-----------------------------------------------------------------------------------

Hi Ramesh.

On Wednesday 21 October 2009 18:15:20 Ramesh Reddy wrote:
> Jasper,
> 

Its J*e*sper ;)

> Thanks again for very valuable comments. If you do not mind I will
post these on WIKI page to share with others.
> 

Feel free, we should have this discussion on the Teiid design forum
really...

> (2) I understand. In Teiid we call this mode as embedded "File-path
> profile" in current release. We have to sacrifice the
> "classpath-profile" now for the benefits. see
> https://www.jboss.org/community/wiki/ConnectingtoTeiidEmbedded
> 

Ok.

People have different definitions of embedded ;)

> Do MC beans provide the configuration functionality, where profile
> service is not? i.e. teiid-jboss-beans.xml through @ManagedObject, if
> that is case I need to think about bringing in MC as core dependency
for
> Teiid. Then, how are these available through JMX?
> 

Different concepts.

A MC bean is just a Plain Old Java Object (POJO) managed by the JBoss 
Microcontainer. The MC projects provides various APIs/SPIs to do
integration.

 http://www.jboss.org/index.html?module=bb&op=viewforum&f=228

Lead: Ales Justin


Profile Service handles "profiles" of a server -- e.g. "give me a 
configuration with logging, naming, transaction, jca, messaging and
ejb3". The profile service selects the MC beans that will provide such a
profile.

 http://www.jboss.org/index.html?module=bb&op=viewforum&f=160

Lead: Emanuel Muckenhuber (and Scott Stark)


@ManagedObject identifies POJOs which have a management view - they
don't have to be registered as MC beans.

 http://www.jboss.org/index.html?module=bb&op=viewforum&f=160

Lead: Emanuel Muckenhuber (and Scott Stark)

@ManagedObject <-> MBean is handled by a 'bridge'.

 http://www.jboss.org/index.html?module=bb&op=viewforum&f=160

Lead: Emanuel Muckenhuber (and Scott Stark)


> Committing to single platform does make things simpler. 

You'll need various layers to deal with container (and kernel) specific 
details - in order to run on various EE servers.

> Can you explain your comments on (34)?
> 

When Teiid is running as part of the JBoss Application Server it should
use Profile Service) Create the server configuration for the Teiid
platform @ManagedObject) To identify management objects Other servers
uses other mechanisms. You'll have to evaluate each technology before
you bring it in - "do I want a hard dependency on this project ?", "do
the project have the performance profile we need ?", ... Good idea is to
use 

 http://jboss.org/tattletale/

to get an overview of the projects you are working with - yes, that was
a shame-less plug ;)


I keep the documentation for JBJCA up-to-date for each release here:

 http://docs.jboss.org/jca/

But *note*, that certain parts of JBJCA != JBossAS... and there is
still 
development to do before the first stable release.