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[protege-discussion] Accessing Protege Knowledgebase from C/C++

Timothy Redmond tredmond at
Wed Apr 14 10:21:39 PDT 2010

In Protege 4.1, FaCT++ is a C++ application that connects to Protege 
using JNI.  This is probably the simplest approach but it has a 
downside.  The Java language provides safety guarantees that are not 
provided  by C++.  Thus a segmentation fault  in the  C++ code can 
bring  down the JVM.  This should not happen with a jvm with pure java 
code.  I haven't looked at how the FaCT++ plugin is implemented so I 
don't have too much to add here.


On 04/14/2010 09:33 AM, Ron Schultz wrote:
> Has anyone connected to Protege, either a local or remote 
> knowledgebase, using C/C++? I have an application that needs to fetch 
> values from a Protege knowledgebase into a C/C++ application. I have 
> been researching the Java Native Interface (JNI) but thought I would 
> reach out to the user community to see if anyone has already done 
> this, and if so, would they be willing to share an example.
> Thanks
> Ron
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