On Tuesday 02 September 2003 09:04, Brian Campbell wrote: > Great. Is there an example anywhere on how I might be able to build such a > Query? QueryParser isn't really all that simple since it's built with > JavaCC.
Well, like Eric mentioned, if you can just ignore JavaCC syntax and look at embedded Java code, it's not all that complicated (especially you have done something with yacc/bison, to know how parser generators generally work)... but granted at first looks bit alien. :-) Now, I haven't tested this, but I would think that just building single Query that searches wild card phrase "some th*" in field "my_field", you'd just do: Query q = new WildcardQuery(new Term("my_field", "some th*")); and feed that to whichever search object you need. In this particular case you could also use PrefixQuery instead; if so, you need strip out the trailing "*" (since that's implied when constructing PrefixQuery). > What might be ideal for me is if I can continue to use the highlevel > interface to build the main query (ie use it to parse my query string and > return me some kind of Query - BooleanQuery, TermQuery, etc) and then build > a WildcardQuery by hand and "combine" the two together? For example, is it > as simple as calling Query.combine() to combine the two? Is there a better > way? Is there a documented example like this? Thanks! Eric described the method of combining queries that should work as far as I could see. If you do not want to rely on QueryParer to return BooleanQuery, you can also just build your your BooleanQuery, and wrap sub-queries as BooleanClauses. That's bit more work but should work as well. Good luck and let us know if that works, -+ Tatu +- --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]