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Subject: xpath query of subnode
Date: Tue, 23 Nov 2010 16:46:43 +0100
Message-ID: <CD2EDAAD3FF8224DBC14AB4D697FFB6602A5F8EC@EXCHSUR3.gaia.fr>
Thread-Topic: xpath query of subnode
Thread-Index: AcuLJaCOJbzj8HifT0Oa9R//L/lcJA==
From: "Nicolas Betheuil" <Nicolas.Betheuil@europe.adp.com>
To: <users@jackrabbit.apache.org>

Hi,

I have the following structure for my default sch=E9ma
/aRootNode/subNode/onePath/myInterestingNode/conditions[2]/@someHelpffulA=
ttributes
/aRootNode/subNode/otherVeryDifferentPath/myOtherInterestingNode/ =
(without condition)

In the first i have two conditions with some attributes
On the second my node have no conditions.

I have a Profile in memory that have some properties that should match =
with conditions. The target is to list interestingNodes on the Profile =
if conditions are matching. If no condition, that's mean that's =
everybody could see this.

I begin with SQL2 like i work with last release of jackrabbit but when =
dealing with differents paths make subqueries and join (that's all i =
have found) i try xpath. I have read that's deprecated by the spec but =
it's always there and working so I try.
I success to make an xpath that match when my profile have or not same =
conditions.
But i donc succeed to make an xpath that match node without conditions.

One of my case make this query
/aRootNode/subNode/*[(conditions/@property!=3D'propName') or =
(conditions/@property=3D'propName' and conditions/@operator=3D'eq' and =
conditions/@expectedValue=3Dtrue) or (count(conditions)=3D0)]
But the count(conditions)=3D0 doesn't work. Worse, ever it's in an or =
condition, all is false and nothing is returned.

I try with not(conditions), length(conditions)=3D0 or trying to =
understand what's go on count(conditions)>0 to find all nodes with =
conditions as children but nothing match.

Do you have an idea ?
Thank's to have read me to the end