Hi Erik, I am really desperate because I cannot clarify the problem to you - and I am really desperate for help now as well. Creating a sample application would be possible (and the next step). I call Lucene as web service (could however try to wrap the WS function with a main() and create an application for you to run from the command line).
However please allow me once again to try to explain: I have lots of small xml files that I want to show only depending on whether their <subject> tag contains certain keywords / keyphrases. They have been indexed using StandardAnalyser As search criterion I pass on terms from a domain ontology to see what XML files match these terms within <subject>. I started using QueryParser: Query query = QueryParser.parse(line, "name", analyzer); where 'line' was simply a whitespace-delimited line of concepts Worked fine, even could search for keyphrases by linking the words with underscore, e.g. host_defense. Did produce an error however if the user chooses a very high concept level in the domain ontology resulting in > 200 terms to be put into the query string. As you pointed out the limitation was obviously the QueryParser (which I could reproduce) so you suggested to bypass QueryParser by constructing a boolean query using TermQuery. This worked and could take more than 800 (!) terms without errors (could not test more) but because of using TermQuery I lost the functionality to search for phrases, e.g. 'host defense'. After your last response the only question that remains to me is the syntax for adding a PhraseQuery on field <subject>. I could not make sense of the sparse description in the apidoc for that. Why am I using the array myquery[]? Well it's simply the one that passes on the massive amount of query terms to the web service. I though by using a string array I could maintain the aspect of each search term, especially when they represent phrases and not single terms, e.g. myquery[n]="host defense" I would need something that recognises whether the term in myquery[n] is a single term (then adding to the boolean search with TermQuery as usual) OR whether it is a phrase, then adding with PhraseQuery (for which I do not know the syntax). Maybe the PhraseQuery can also add single terms as well - then I would only need this. Thanks for your help, Erik -Holger ___________________________________________________ The ALL NEW CS2000 from CompuServe Better! Faster! More Powerful! 250 FREE hours! Sign-on Now! http://www.compuserve.com/trycsrv/cs2000/webmail/ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
