I think exclude has been removed - see Mulgara release notes (for v1.2, Apr
3 2008) here - http://www.mulgara.org/release.html

There's also a thread on removing exclude starting here -
http://mulgara.org/pipermail/mulgara-general/2007-April/000084.html

Regards
Steve

-----Original Message-----
From: Richard Jones [mailto:[email protected]] 
Sent: 28 October 2009 17:56
To: Fedora Commons Developers
Subject: [Fedora-commons-developers] itql question


Hi Folks,

I'm trying to construct an ITQL query over my Resource Index, but am 
getting exceptions on certain keywords.  Particularly, the example on 
how to do "exclude" queries using ITQL from the Mulgara website:

select $s $p $o from <#ri>
where exclude($s <leaves> 'green')
and $s $p $o;

Doesn't return nothing, but instead throws an exception, which suggests 
that it has failed to parse the query (attached).

Any ideas what I'm doing wrong?

Cheers,

Richard

org.trippi.TrippiException: [2,7] expecting: 'count', 'subquery', 
'trans', 'walk', '(', variableprefix, resource, quote, '{', '['
        at
org.trippi.impl.mulgara.MulgaraSession.query(MulgaraSession.java:137)
        at 
org.trippi.impl.base.ConcurrentTriplestoreReader.findTuples(ConcurrentTriple
storeReader.java:79)
        at 
fedora.server.resourceIndex.ResourceIndexImpl.findTuples(ResourceIndexImpl.j
ava:301)
        at 
fedora.server.resourceIndex.ResourceIndexModule.findTuples(ResourceIndexModu
le.java:318)
        at org.trippi.server.TrippiServer.find(TrippiServer.java:119)
        at
org.trippi.server.http.TrippiServlet.doFind(TrippiServlet.java:512)
        at
org.trippi.server.http.TrippiServlet.doGet(TrippiServlet.java:377)
        at
fedora.server.access.RISearchServlet.doGet(RISearchServlet.java:125)
        at
org.trippi.server.http.TrippiServlet.doGet(TrippiServlet.java:269)
        at
org.trippi.server.http.TrippiServlet.doPost(TrippiServlet.java:572)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:269)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188)
        at 
fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:
256)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188)
        at 
fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:
256)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188)
        at 
fedora.server.security.servletfilters.FilterSetup.doFilter(FilterSetup.java:
256)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:213)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:174)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:525)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127
)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117
)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:108)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
        at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
        at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:665)
        at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:528)
        at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:81)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:689)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.mulgara.parser.MulgaraParserException: [2,7] expecting: 
'count', 'subquery', 'trans', 'walk', '(', variableprefix, resource, 
quote, '{', '['
        at
org.mulgara.itql.TqlInterpreter.parseQuery(TqlInterpreter.java:354)
        at
org.trippi.impl.mulgara.MulgaraSession.query(MulgaraSession.java:129)
        ... 35 more
Caused by: org.mulgara.itql.parser.ParserException: [2,7] expecting: 
'count', 'subquery', 'trans', 'walk', '(', variableprefix, resource, 
quote, '{', '['
        at org.mulgara.itql.parser.Parser.parse(Parser.java:464)
        at
org.mulgara.itql.TqlInterpreter.parseQuery(TqlInterpreter.java:350)
        ... 36 more

-- 
Richard Jones
Head of Repository Systems, Symplectic Limited
e: [email protected]
t: 0845 026 4755
t: +44 (0)207 7334036
w: http://www.symplectic.co.uk/

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ahead of the curve. Join us from November 9 - 12, 2009. Register now!
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