Hi Vincent: The CQL thing has an offical specification (part of the catalog 2.0 specification from OGC). However this format is very limited - you can using he "like" filter to perform some basic wildcard searches.
Your bigger question of how to google like searches is of course a bit larger then CQL. In udig table view we provide a "full text search"; but we do that by going through features in memory and doing just that - full text search. If the user tells us a specific attribute to search (from a drop down list) we can use the like filter and go faster; or if they give us a CQL expression (in the same drop down list) we can go faster. Other then that you may want to deploy a search engine (GeoNetwork uses one for search metadata) and reference each feature id from each block of text. Jody On Tue, May 12, 2009 at 6:20 AM, Vincent2009 <[email protected]> wrote: > > Hi ALL, > > I’m studying how to implement “search” function based on Gerserver. But I > suffered server problems as follow. Before I posted my questions, I had > searched the forum without helpful responds. > 1. The Syntax of CQL. Though there is a guideline about CQL on the > website, > it doesn’t provide enough in my views. My questions: how to filter by a > street name (a string, like “E 66th St”)? In the tiger-ny map, the CQL > filer: tiger_roads.NAME "is" E 66th St, but it is wrong. > 2. I just want to develop “map search” like Google map, MS Live map, as > my > further study platform. Unluckily, I don’t know how to start the work. Could > you give some cues or steps? Of course, if there are some examples, it > should be better. > > Cheers, > Vincent > > -- > View this message in context: > http://www.nabble.com/How-to-develp-%22search%22-function-and-the-syntax-of-CQL-tp23490764p23490764.html > Sent from the GeoServer - Dev mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your > production scanning environment may not be a perfect world - but thanks to > Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 > Series Scanner you'll get full speed at 300 dpi even with all image > processing features enabled. http://p.sf.net/sfu/kodak-com > _______________________________________________ > Geoserver-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geoserver-devel > ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Geoserver-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-devel
