Hello,
This functionality should already be in the QueryParser that is in CVS.
I'm not sure if the QueryParser in CVS checks the operators as much as
yours does...
Otis
--- Norbert_Pabi¶ <npabis@e-point.pl> wrote:
> Hi,
>
> Now conjuction behaviour in lucene is always set to OR.
> In my work I need to set it during runtime.
> It is easy with my patched QueryParser.
>
> Please have a look at the patch and say what you think of it.
> Maybe it is a good idea to include such a funcionality into Lucene?
>
> --
> Norbert Pabi¶
> > --- /tmp/uu/QueryParser.jj Sun Jun 9 22:47:55 2002
> +++ ./QueryParser.jj Mon Sep 16 14:09:36 2002
> @@ -106,6 +106,10 @@
> */
>
> public class QueryParser {
> +
> + /** Default conjunction behaviour. */
> + private int conjunctionBehaviour = CONJ_OR;
> +
> /** Parses a query string, returning a {@link
> org.apache.lucene.search.Query}.
> * @param query the query string to be parsed.
> * @param field the default field for query terms.
> @@ -122,7 +126,38 @@
> throw new ParseException(tme.getMessage());
> }
> }
> -
> +
> + /** Parses a query string, returning a {@link
> org.apache.lucene.search.Query}.
> + * Enables setting default conjunction behaviour set.
> + * @param query the query string to be parsed.
> + * @param field the default field for query terms.
> + * @param analyzer used to find terms in the query text.
> + * @param conjunctionBehaviour default conjunction behaviour
> + * (NONE, OR, AND)
> + * @throws ParseException if the parsing fails
> + */
> + public static Query parse(String query, String field, Analyzer
> analyzer, int conjunctionBehaviour)
> + throws ParseException, IllegalArgumentException {
> + if (conjunctionBehaviour != CONJ_NONE &&
> + conjunctionBehaviour != CONJ_AND &&
> + conjunctionBehaviour != CONJ_OR) {
> + throw new IllegalArgumentException("Illegal conjunction
> behaviour:" + conjunctionBehaviour);
> + } else {
> + QueryParser queryparser = new QueryParser(field, analyzer);
> + queryparser.setConjuctionBehaviour(conjunctionBehaviour);
> +
> + return queryparser.parse(query);
> + }
> + }
> +
> + /** Sets default conjunction behaviour.
> + * @param conjunctionBehaviour default conjunction behaviour
> + * (NONE, OR, AND)
> + */
> + public void setConjuctionBehaviour(int conjunctionBehaviour) {
> + this.conjunctionBehaviour = conjunctionBehaviour;
> + }
> +
> Analyzer analyzer;
> String field;
> int phraseSlop = 0;
> @@ -256,9 +291,9 @@
> System.out.println(q.toString("field"));
> }
>
> - private static final int CONJ_NONE = 0;
> - private static final int CONJ_AND = 1;
> - private static final int CONJ_OR = 2;
> + public static final int CONJ_NONE = 0;
> + public static final int CONJ_AND = 1;
> + public static final int CONJ_OR = 2;
>
> private static final int MOD_NONE = 0;
> private static final int MOD_NOT = 10;
> @@ -315,7 +350,7 @@
> // * Clause ::= ["+", "-"] [<TERM> ":"] ( <TERM> | "(" Query ")" )
>
> int Conjunction() : {
> - int ret = CONJ_NONE;
> + int ret = conjunctionBehaviour;
> }
> {
> [
>
> > --
> To unsubscribe, e-mail:
> <mailto:lucene-dev-unsubscribe@jakarta.apache.org>
> For additional commands, e-mail:
<mailto:lucene-dev-help@jakarta.apache.org>
__________________________________________________
Do you Yahoo!?
Yahoo! News - Today's headlines
http://news.yahoo.com --
To unsubscribe, e-mail: <mailto:lucene-dev-unsubscribe@jakarta.apache.org>
For additional commands, e-mail: <mailto:lucene-dev-help@jakarta.apache.org>
lucene.conjuction.patch (2.49 KB)