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[protege-owl] Plugin Development - Accessing Jess Rule Engine failed

Martin O'Connor martin.oconnor at
Tue Aug 10 15:50:39 PDT 2010

If you want to build the SWRLJessTab from the Subversion trunk you 
should first download and build Protege-OWL and Core-Protege.


 from Rita Marnau wrote:
> Solved the problem. Found this mailing entry at last:
> Note:  swrl-jess-bridge project has problems with other versions of protege-owl. 
> the trunk of swrl-jess-bridge did not work with protege-owl trunk. I took the tag release-3.4.4 for both (protege-owl and swrl-jess-bridge) and then it works fine. 
> Regards, Rita
> -----------------------------------------------------
> Hello,
> for my protege plugin I want to use the jess rule engine, but I don't 
> succeed in accessing it.
> In the swrl tag, the  SQWRL-Button is shown (but not the jesstab 
> button). When I click it, I get the message that no brigdes are registered.
> Situation: development in eclipse, starting protege via eclipse.
> -Run Configuration: Working Directory is Protege 3.4.4, added jess libs 
> in the plugin folder of protege 3.4.4 edu.stanford.smi.protegex.owl 
> (jess bridge is available when starting protege stand-alone without eclipse)
> -For developing I get the protege-owl and protege-core source code and 
> added theses projects to the library of my plugin project
>      I added jess libs in the lib folder of protege-owl
> - I added jess libs in the lib folder of my plugin project
> Nevertheless jess seems not to be find. I think it has something to do 
> with the protege-owl source code. What do I have to do to get jess 
> access via eclipse ?
> Thanks for help!
> Rita
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