Hi JB,
None of the functions you describre are currently supported by Jackrabbit.
A date property is stored in the lucene index using ISO8601 format for
using < and > operator efficiency.
The most efficient way IMHO is to have another date property which will
contain the same the value but with a same fixed year.
The drawback is that you must maintain the integrity of the two fields at
each update.
But i think the duplicity is worth the effort hence it will consume more
disk.
Note that you will need to use xs:datetime('XXXX-06-30T00:00:00.000+00:00')
with operator >= and <.
You can also use a string property with month and day concatenated ("06/30")
but the query will not be so fine grained (users born on the same hour :)).
Best regards,
Sébastien.
Jean-Baptiste Bellet a écrit :
Hi,
I'm using jackrabbit and I'm trying to execute a query in order to
retrieve 'users', registered in JCR, who have a birthdate
corresponding to the current date.
For example if a user was born on june the 30th, 1992 I want to
compare the user's birthdate with june the 30th (and without the year
wich is not important in this case). I have tried a lot of queries,
but without success.
Any idea on how to perform such a query?
Thanks a lot,
jb
This one works:
//[EMAIL PROTECTED] = '1992-06-30T14:36:24.292+01:00']
These do not work:
//user[substring(@birthDate, 1, 1) = '1']
//user[substring(fn:string(@birthDate), 1, 1) = '1']
//user[concat(substring(@birthDate, 6, 2), substring(@birthDate,
9, 2)) = '0630']
//user[fn:month-from-dateTime(@birthDate) = 6]
//user[fn:month-from-dateTime(./@birthDate/value()) = 6]
