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Date: Tue, 06 Jun 2006 15:13:34 +0200
From: stephan lohwasser <stephan.lohwasser@systemone.at>
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To: dev@jackrabbit.apache.org
Cc: Michael Grinner <michael.grinner@systemone.at>
Subject: element order in queries.
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hi all,
i have a problem concerning xPath queries for a certain nodetypes and 
their respective order.
all i want to do is find all nodes of a certain nodetype called 
's1Nt:element'. the query i wrote goes like this:

//element(*, s1NT:element)

all elements are located as same name siblings below s1Nt:page nodes, 
ie. there are many page nodes wich can have many element child nodes.

when executing the query i get no results, but the following error 
messages form jackrabbit/lucene (the error  occurrs several times below 
differen page nodes):
2006-06-06 10:11:53,997 ERROR 
[org.apache.jackrabbit.core.query.lucene.DocOrderNodeIteratorImpl] 
Internal error: unable to determine document order of nodes:
2006-06-06 10:11:53,997 ERROR 
[org.apache.jackrabbit.core.query.lucene.DocOrderNodeIteratorImpl]    
 Node1: /s1:root/s1:pages/s1:page[3126]/s1:elementRoot/s1:element[3]
2006-06-06 10:11:53,997 ERROR 
[org.apache.jackrabbit.core.query.lucene.DocOrderNodeIteratorImpl]    
 Node2: /s1:root/s1:pages/s1:page[3126]/s1:elementRoot/s1:element

is it my fault, or a jackrabbit bug?
i also thought it could be due to the fact that we have switched of 
document order in the repository xml:
<Repository>
    [..]
    <Workspace name="default">
       [..]
        <SearchIndex 
class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
             [..]
            *<param name="documentOrder" value="false"/>*<!-- improves 
performance on queries-->
        </SearchIndex>
    </Workspace>
    [..]
</Repository>
but: it is not. i have switched it on and the error still occurs.

thanks a lot.
stephan