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From Marcel Reutegger <marcel.reuteg...@gmx.net>
Subject Re: XPath query returns no results
Date Mon, 19 Nov 2007 13:20:42 GMT
Hi Daniel,

that's quite strange. I tried to reproduce the issue, but was unable to do so. 
Is there anything unusual in the log files that might explain why the queries fail?

you can also re-index the content and see if the query works afterwards:

- stop jackrabbit
- delete the directory <repo-home>/workspaces/default/index
- start jackrabbit
- execute the query

regards
  marcel

Daniel Mitterdorfer wrote:
> Hi,
> 
> XPath does not seem to work as expected for me. This is a dump of my 
> repository contents (node name, followed by the primary node type in 
> parenthesis):
> 
> (rep:root)
> Prop: jcr:primaryType = rep:root
>  jcr:system (rep:system)
>  Prop: jcr:primaryType = rep:system
>  <<large subtree here - irrelevant to the problem>>
>  interedu (nt:unstructured)
>  Prop: jcr:primaryType = nt:unstructured
>    someTitle (nt:file)
>    Prop: jcr:uuid = 2e311056-b5a6-4279-9c04-430db01ad56b
>    Prop: jcr:mixinTypes = mix:referenceable
>    Prop: jcr:created = 2007-11-19T12:32:58.290+01:00
>    Prop: jcr:primaryType = nt:file
>      jcr:content (nt:resource)
>      Prop: jcr:predecessors =
>      Prop: jcr:uuid = b6b9f064-cb12-49e6-9c32-ae28657825b6
>      Prop: jcr:mixinTypes = mix:versionable
>      Prop: jcr:data = Test
>      Prop: jcr:versionHistory = 8eb37332-2550-4486-9f49-6406f2b5ede2
>      Prop: jcr:mimeType = text/plain
>      Prop: jcr:lastModified = 2007-11-19T12:32:58.290+01:00
>      Prop: jcr:baseVersion = 941d13f5-deb3-40e5-9cab-4d2609f1bf0a
>      Prop: jcr:primaryType = nt:resource
>      Prop: jcr:isCheckedOut = false
>     where "interedu" is the root node of my application. If I query for 
> all nodes using the XPath query '//*', I get all nodes in the 
> repository. So far, so good. However, if i want to query only for the 
> 'interedu' subtree using the XPath query '//interedu/*' i get no results 
> although 'interedu' has child nodes. I have already tried quite a few 
> things but got no sufficient results (including a research on the 
> Jackrabbit mailing lists). Can anybody see my error(s) or give me some 
> pointers? Thanks!
> 
> Additional information:
> 
> * I have deleted all repository files before running my sample application.
> * I use Jackrabbit version 1.3.3 which I integrat into my application 
> using Spring Modules 0.8.
> * My query code:
> 
> final QueryManager queryManager = session.getWorkspace().getQueryManager();
> final Query query = queryManager.createQuery(queryString, Query.XPATH); 
> //here I insert my query string (see above)
> final QueryResult result = query.execute();
> final NodeIterator it = result.getNodes();
> 
> System.err.println("================= Results =============");
> while (it.hasNext()) {
>  Node n = it.nextNode();
>  System.err.println(n.getPath() + " (" + 
> n.getPrimaryNodeType().getName() + ")");
> }
> 
> * My Jackrabbit config file is defined as follows:
> 
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <Repository>
>    <FileSystem
>        class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
>        <param name="path" value="${rep.home}"/>
>    </FileSystem>
>    <Security appName="Jackrabbit">
>        <AccessManager
>            
> class="org.apache.jackrabbit.core.security.SimpleAccessManager" />
>    </Security>
>    <Workspaces rootPath="${rep.home}/workspaces"
>        defaultWorkspace="default" />
>    <Workspace name="${wsp.name}">
>        <FileSystem
>            class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
>            <param name="path" value="${wsp.home}"/>
>        </FileSystem>
>        <PersistenceManager
>            
> class="org.apache.jackrabbit.core.persistence.xml.XMLPersistenceManager"/>
>        <SearchIndex
>            class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
>            <param name="path" value="${wsp.home}/index" />
>            <param name="useCompoundFile" value="true" />
>            <param name="minMergeDocs" value="100" />
>            <param name="volatileIdleTime" value="3" />
>            <param name="maxMergeDocs" value="100000" />
>            <param name="mergeFactor" value="10" />
>            <param name="maxFieldLength" value="10000" />
>            <param name="bufferSize" value="10" />
>            <param name="cacheSize" value="1000" />
>            <param name="forceConsistencyCheck" value="false" />
>            <param name="autoRepair" value="true" />
>            <param name="analyzer"
>                
> value="org.apache.lucene.analysis.standard.StandardAnalyzer" />
>            <param name="queryClass"
>                value="org.apache.jackrabbit.core.query.QueryImpl" />
>            <param name="respectDocumentOrder" value="true" />
>            <param name="resultFetchSize" value="2147483647" />
>            <param name="extractorPoolSize" value="0" />
>            <param name="extractorTimeout" value="100" />
>            <param name="extractorBackLogSize" value="100" />
>            <param name="textFilterClasses"
>                value="    
> org.apache.jackrabbit.extractor.XMLTextExtractor,org.apache.jackrabbit.extractor.PlainTextExtractor,org.apache.jackrabbit.extractor.PdfTextExtractor,org.apache.jackrabbit.extractor.OpenOfficeTextExtractor,org.apache.jackrabbit.extractor.MsWordTextExtractor,org.apache.jackrabbit.extractor.MsPowerPointTextExtractor,org.apache.jackrabbit.extractor.MsExcelTextExtractor,org.apache.jackrabbit.extractor.HTMLTextExtractor"

> />
>        </SearchIndex>
>    </Workspace>
> 
>    <SearchIndex
>        class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
>        <param name="path" value="${rep.home}/repository/index" />
>    </SearchIndex>
> 
>    <Versioning rootPath="${rep.home}/versions">
>        <FileSystem
>            class="org.apache.jackrabbit.core.fs.local.LocalFileSystem">
>            <param name="path" value="${rep.home}"/>
>        </FileSystem>
>        <PersistenceManager
>            
> class="org.apache.jackrabbit.core.persistence.xml.XMLPersistenceManager"/>
>    </Versioning>
> </Repository>
> 
> Bye,
> 
> Daniel
> 
> 


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