Re: add index to xindice1.1b4, need help

 From your xpath it looks like your searching for a cetain namespace. 
You can try this for a index pattern
*@[http://www.lqcd.org/ildg/QCDml/ensemble1.1]beta

http://xml.apache.org/xindice/guide-administrator.html#Managing+Indexes 
is a good resource for indexes.

Todd

Qunfang Zhang wrote:
> Hi all,
> 
> Can someone help me to solve the urgent problems?
> 
> I use xindice1.1b4 on Linux, everything fine for searching. When I try to set
> checkpoints in my program to trace the time spent during querying collection, I
> happen recorded in my log file the exceptions as follow:
> java.lang.NullPointerException
>         at
> org.apache.xindice.core.indexer.IndexPattern.<init>(IndexPattern.java:57)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.queryComparison(XPathQueryResolver.java\
> :1090)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalValComparison(XPathQueryResolver.ja\
> va:521)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:296)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:284)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalAxis(XPathQueryResolver.java:707)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:341)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalLocationPath(XPathQueryResolver.jav\
> a:376)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:279)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalSetComparison(XPathQueryResolver.ja\
> va:449)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:288)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:284)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalAxis(XPathQueryResolver.java:707)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:341)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalLocationPath(XPathQueryResolver.jav\
> a:376)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:279)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:284)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalAxis(XPathQueryResolver.java:707)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:341)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evalLocationPath(XPathQueryResolver.jav\
> a:376)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:279)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.evaluate(XPathQueryResolver.java:284)
>         at
> org.apache.xindice.core.query.XPathQueryResolver$XPathQuery.execute(XPathQueryResolver.java:208)
>         at
> org.apache.xindice.core.query.XPathQueryResolver.query(XPathQueryResolver.java:131)
>  at org.apache.xindice.core.query.QueryEngine.query(QueryEngine.java:122)
>         at
> org.apache.xindice.core.Collection.queryCollection(Collection.java:1217)
>         at org.apache.xindice.server.rpc.messages.Query.execute(Query.java:60)
>         at
> org.apache.xindice.server.rpc.RPCMessageInterface.run(RPCMessageInterface.java:48)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.apache.xmlrpc.Invoker.execute(XmlRpcServer.java)
>         at
> org.apache.xmlrpc.XmlRpcServer$Worker.executeInternal(XmlRpcServer.java)
>         at org.apache.xmlrpc.XmlRpcServer$Worker.execute(XmlRpcServer.java)
>         at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java)
>         at org.apache.xmlrpc.XmlRpcServer.execute(XmlRpcServer.java)
>         at
> org.apache.xindice.server.XindiceServlet.doPost(XindiceServlet.java:90)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
>         at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:643)
>         at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>         at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>         at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:643)
>         at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>         at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>         at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)
>         at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
>         at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:643)
>         at
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
>         at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:641)
>         at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:641)
>         at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>         at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>         at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
>         at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.\
> java:643)
>         at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>         at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>         at
> org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
>         at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
>         at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.ja\
> va:700)
>         at
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
>         at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
>         at java.lang.Thread.run(Thread.java:595)
> 
> this does not influence any normal queries. However, when I add index on the
> query collection with pattern "beta", and query element "beta", it turns out no
> speed gained at all.
> 
> - add index command:
> xindice ai -c xmldb:xindice://localhost:8080/db/demo/ensembles -n beta -p beta
> - My docment store in xindice collection with default namespace such as
> xmlns="http://www.lqcd.org/ildg/QCDml/ensemble1.1"
> - in my program I use to set the default namespace with following string:
> service.setNamespace("","http://www.lqcd.org/ildg/QCDml/ensemble1.1");
> - query string of "//:beta[text()='12.6']" then return what I expected.
> - after I add index for "beta", the db/system/Sysconfig/database.xml has
> correctly recorded it.
> 
> the only problem is index has no effect.
> 
> Any help will be very helpful!
> 
> Thanks,
> 
> qunfang zhang