Hi Gabriel,
the WSF filter spec uses ( and ) to separate OGC filters in a get
request. I'm looking for a separator for CQL. It seems [ and ] would do?
What I need to do is to parse something like:
CQL_FILTER=[A + B < 10][ATT1 = "Gimbo"]
or
CQL_FILTER=A + B < 10|ATT1 = "Gimbo"
into two separate filters. Does CQL have the concept of a filter list?
I need to pick up a character that has low likeliness of interfering
with the CQL itself, since our way to split OGC filters is to use
a lame StringTokenizer, that can't really manage nesting
Cheers
Andrea
Hi Andrea,
I've added the possibility to parse a list of filters separated by a delimiter
directly on the cql parser.
Take a look at http://jira.codehaus.org/browse/GEOT-1162 and
http://docs.codehaus.org/display/GEOTOOLS/CQL+User+Guide for more details.
Basically you can use the | character as separator and will get back a
List<Filter>. So, say you have tree layers and want to apply a filter only to
the one in the middle of the list, use INCLUDE on the others to mean
Filter.INCLUDE, like in:
CQL_FILTER=INCLUDE|ATT1 = "Gimbo"|INCLUDE
Hope that helps.
Gabriel
On Tuesday 13 February 2007 10:14, Andrea Aime wrote:
Hi Gabriel,
the WSF filter spec uses ( and ) to separate OGC filters in a get
request. I'm looking for a separator for CQL. It seems [ and ] would do?
What I need to do is to parse something like:
CQL_FILTER=[A + B < 10][ATT1 = "Gimbo"]
or
CQL_FILTER=A + B < 10|ATT1 = "Gimbo"
into two separate filters. Does CQL have the concept of a filter list?
I need to pick up a character that has low likeliness of interfering
with the CQL itself, since our way to split OGC filters is to use
a lame StringTokenizer, that can't really manage nesting
Cheers
Andrea
--
Gabriel Roldán (groldan@anonymised.com)
Axios Engineering (http://www.axios.es)
Tel. +34 944 41 63 84
Fax. +34 944 41 64 90
Gabriel Roldán ha scritto:
Hi Andrea,
I've added the possibility to parse a list of filters separated by a delimiter directly on the cql parser.
Take a look at http://jira.codehaus.org/browse/GEOT-1162 and http://docs.codehaus.org/display/GEOTOOLS/CQL+User+Guide for more details.
Basically you can use the | character as separator and will get back a List<Filter>. So, say you have tree layers and want to apply a filter only to the one in the middle of the list, use INCLUDE on the others to mean Filter.INCLUDE, like in:
CQL_FILTER=INCLUDE|ATT1 = "Gimbo"|INCLUDE
Sure it does 
Thank you Gabriel! At least we don't need fancy separator attributes for CQL... we only miss support for fid filters now, in the meantime, the
documentation (that I still have to write, lazy me) will state that if you need fid filters, you should fall back on the FEATUREIDS=xxx parameter or use the OGC Filter.
Cheers
Andrea