Thank you for your assistance. I have implemented it as normal, and it works now.
Tanya On Mon, Jan 13, 2014 at 8:46 PM, Holger Knublauch <[email protected]>wrote: > Hi Tanya, > > the message means what it states: it is not possible to define a magic > property that has an expression (such as COUNT) as result variable. Given > that it only returns one value, why don't you just implement it as a normal > spin:Function? > > The exception below that seems unrelated, and I would need more > information on why this happened. > > HTH > Holger > > > > On 1/14/2014 1:26, Tanya wrote: > > Hello, > > I am currently trying to use a count in a magic properties, however I am > getting errors. I was wondering if someone would be able to assist me. > > Thank you kindly, > Tanya > > > *Errors*: > - SELECT with expressions not supported in magic properties > - Function definition does not contain a valid body > > *Magic Properties Function*: > SELECT COUNT(DISTINCT ?e) COUNT(DISTINCT ?e2) > WHERE { > ( ?d1 ) :getFnc ( ?e ) . > ( ?d2 ) :getFnc ( ?e2 ) .} > > Contraints: ?d1, ?d2 > > > Error message: Failed to execute operation > *Exception Stack Trace*: > java.lang.reflect.InvocationTargetException > at > org.topbraid.core.change.AbstractChangeEngine.execute(AbstractChangeEngine.java:286) > at > org.topbraidcomposer.core.change.TBCChangeEngine.access$0(TBCChangeEngine.java:1) > at > org.topbraidcomposer.core.change.TBCChangeEngine$2.run(TBCChangeEngine.java:163) > at > org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) > Caused by: org.eclipse.core.commands.ExecutionException: While executing > the operation, an exception occurred > at > org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:521) > at > org.topbraid.core.change.AbstractChangeEngine.execute(AbstractChangeEngine.java:272) > ... 3 more > Caused by: java.lang.IllegalStateException: we failed to create the > object: java.lang.NullPointerException: Failed to identify source graph > (statement found but not identified) > at > org.topbraidcomposer.change.lib.ReplaceObjectChange.execute(ReplaceObjectChange.java:53) > at > org.topbraid.core.change.ChangeOperation.execute(ChangeOperation.java:105) > at > org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:513) > ... 4 more > Caused by: java.lang.NullPointerException: Failed to identify source graph > (statement found but not identified) > at > org.topbraidcomposer.change.lib.AbstractReplaceObjectChange.replaceObject(AbstractReplaceObjectChange.java:116) > at > org.topbraidcomposer.change.lib.AbstractReplaceObjectChange.replaceObject(AbstractReplaceObjectChange.java:100) > at > org.topbraidcomposer.change.lib.ReplaceObjectChange.execute(ReplaceObjectChange.java:49) > ... 6 more > > *Session data*: > eclipse.buildId=I20110613-1736 > java.version=1.6.0_45 > java.vendor=Sun Microsystems Inc. > BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_CA > Framework arguments: -product org.eclipse.epp.package.rcp.product > Command-line arguments: -os linux -ws gtk -arch x86_64 -product > org.eclipse.epp.package.rcp.product > > > -- > -- You received this message because you are subscribed to the Google > Group "TopBraid Suite Users", the topics of which include Enterprise > Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid > Insight, SPARQLMotion, SPARQL Web Pages and SPIN. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/topbraid-users?hl=en > --- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > -- You received this message because you are subscribed to the Google > Group "TopBraid Suite Users", the topics of which include Enterprise > Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid > Insight, SPARQLMotion, SPARQL Web Pages and SPIN. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/topbraid-users?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "TopBraid Suite Users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/topbraid-users/7zraqIn5dYI/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include Enterprise Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid Insight, SPARQLMotion, SPARQL Web Pages and SPIN. 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