[Obe-developer] RE: obe

[Adrian P. <ad...@bt...>]

Good day Jorge,
 
I am glad to hear that OBE is of interest to you.
 
I don't think you will have any problem with Spring and Hibernate. OBE is
designed to allow pluggable repository implementations for both workflow
process definitions (the 'process repository') and process instances (the
'instance repository'). At least one OBE user that I know of has done their
own Hibernate-based repository implementation; in fact, at their request I
made some modifications to the repository SPIs specifically to make a
Hibernate version easier to implement. It would have been nice to have had
the implementation as an open source contribution to the OBE project but
unfortunately I'm told proved too hard to separate it from the rest of their
application.
 
So with experience that in mind... perhaps you would like to consider
contributing your Spring / Hibernate repositories to the OBE project? They
would be very well received - both are popular technologies that are of
general interest. You would need to be careful to avoid direct dependencies
between your repository implementations and your application, though, so
that your code compiles against the OBE API / SPI alone. If you do decide
that you'd like to contribute, it would be preferable to use a package like
org.obe.server.hibernate or org.obe.server.spring. Please let us know what
you think.

There are some javabeans that might give you a head start: take a look at
$OBE_HOME/obe/obeengine/src/org/obe/engine/persistence/memory/Basic*.java
 
There's an example of sub-process invocation in the WfMC Sample Workflow
Process - it's described in some detail in the OBE documentation
(http://obe.sourceforge.net/examples/wfmc-sample.html). For an example of
activity assignment take a look at the document approval workflow
(http://obe.sourceforge.net/examples/document-approval.html). BTW those URLs
won't come up in frames just yet.

I'm not sure what you mean by "evaluate Assignment", could you be more
specific?

Best regards,

Adrian.

Adrian Price
Architect & Lead
The Open Business Engine
mailto:adr...@us...

"tenax propositi, altiora peto"

________________________________

From: Jorge Middleton [mailto:jor...@gm...] 
Sent: Friday, April 28, 2006 9:39 PM
To: adr...@us...
Subject: obe


Sr. Adrian, 

My name is Jorge Middleton from Argentina and I'm designer of a system that
requires to much use of the workflow. I have studied your workflow and I
believe that cover all of my requirements but i have some doubts. 

My arquitecture is based on Spring and Hibernate and my intension is to save
all stuff with Hibernate, 
It's possible to add a Repository that persist all objects with Hibernate??


Also I would like to know if you have more examples to see for evaluate
Assignment, Subprocesses, etc... 
I saw that you have this pending, but maybe you just have
something.OBE-1.0-TODO.txt you have this in pending state.

If you can help me, I will appreciate you so much..
Thanks in advance and sorry for my english. 

Jorge L.Middleton