Sporadic posts about technical topics I'm working on: linked data, semantic web, user experience, front-end software development
As a guide to help new Jena users, I wrote a
Complete beginner's guide to starting a Jena project in Eclipse.
Hi dearI couldn't use your starting a jena project in eclipse. my connection has filtered it would you please send it to my email: Maryam_hourali@yahoo.comBest Regards,Maryam
Hi Maryam,I'm surprised that your ISP would filter my web site ... there's nothing there that could trigger any reasonable set of filter rules as far as I know. The zipped archive containing the tutorial is 4.3Mb, so it's a bit large for sending through email. I've uploaded a copy to the Jena file area on Yahoo. See: Jena files area.Ian
HiiI am new to jena and I followed your steps but I am facing a problem. There is an error which statesException in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory at com.hp.hpl.jena.rdf.model.impl.PropertyImpl.(PropertyImpl.java:64) at com.hp.hpl.jena.enhanced.BuiltinPersonalities.(BuiltinPersonalities.java:27) at com.hp.hpl.jena.rdf.model.impl.ModelCom.(ModelCom.java:51) at com.hp.hpl.jena.rdf.model.ModelFactory.createDefaultModel(ModelFactory.java:122) at com.hp.hpl.jena.rdf.model.ModelFactory.createDefaultModel(ModelFactory.java:116) at tutorial.HelloRDFWorld.main(HelloRDFWorld.java:15)Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 6 morePlease guide me how to proceed further. Best Regards,Smriti Jain
Hi Smriti,This should be just a case of adding the slf4j libraries from the lib directory of the Jena download in the 'User libraries' step in the tutorial. If that doesn't work, I'll have a more detailed look. This tutorial is quite old now, and I'm planning to do an updated version when I get time!Ian
Hi Ian,I followed the steps as mentioned in your tutorial. I have configured Jena into Eclipse and there are no errors after the build path has been set. However I am still not getting the correct output. I have tried three different versions of Jena. I think Jena is not configured properly but I even get documentation help on keywords. I am attaching the output below. Can you help out whats the problem?This the outputUsage: javaw [-options] class [args...] (to execute a class) or javaw [-options] -jar jarfile [args...] (to execute a jar file)where options include: -server to select the "server" VM -hotspot is a synonym for the "server" VM [deprecated] The default VM is server. -cp -classpath A ; separated list of directories, JAR archives, and ZIP archives to search for class files. -D= set a system property -verbose[:class|gc|jni] enable verbose output -version print product version and exit -version: require the specified version to run -showversion print product version and continue -jre-restrict-search | -jre-no-restrict-search include/exclude user private JREs in the version search -? -help print this help message -X print help on non-standard options -ea[:...|:] -enableassertions[:...|:] enable assertions -da[:...|:] -disableassertions[:...|:] disable assertions -esa | -enablesystemassertions enable system assertions -dsa | -disablesystemassertions disable system assertions -agentlib:[=] load native agent library , e.g. -agentlib:hprof see also, -agentlib:jdwp=help and -agentlib:hprof=help -agentpath:[=] load native agent library by full pathname -javaagent:[=] load Java programming language agent, see java.lang.instrument -splash: show splash screen with specified imageThanks,Shehram
Hi Ian,Wanted to provide you some more info My Eclipse Version is Indigo Service Release 2 Build id: 20120216-1857.Jena Version: 2.10.1
hi, pls do guide me to store rdf on jena sdb and query it
Hi Anonymous,Please ask your question on the Jena Users group. See the Jena help page for details on joining the Jena Users email list.
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