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

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