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List:       lucene-user
Subject:    Re: relation among Terms included in Query
From:       Smith G <gudumba.smith () gmail ! com>
Date:       2009-12-28 23:18:41
Message-ID: 171c79530912281518g1e5e9074l34169339e806a81c () mail ! gmail ! com
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Hi,
        Thank you very much.. that should help.. meanwhile I run cases
and write again if I get stuck once more in the same context.
Thanks

2009/12/28 AHMET ARSLAN <iorixxx@yahoo.com>:
>> Hello All,
>>             I have observed
>> extractTerms() in the class
>> org.apache.lucene.search.Query which returns set of terms
>> extracted
>> from user input query. Is there any chance of getting the
>> connecting-operator between all those terms. for example..
>> Term1 OR
>> Term2 AND Term3 ..    or  Term1 AND Term2
>> AND Term3 , etc..
>> Thanks.
>
> You can extract org.apache.lucene.search.BooleanClause from BooleanQuery. Something like:
>
>
>  if (contents instanceof BooleanQuery) {
>
> BooleanQuery bq = (BooleanQuery) contents;
> BooleanClause[] bclauses = bq.getClauses();
>
>            for (int i = 0; i < bclauses.length; i++) {
>
>                Query qc = bclauses[i].getQuery();
>
>
>                if (bclauses[i].getOccur().equals(BooleanClause.Occur.MUST_NOT)) {
>                 // NOT
>
>                }
>                else if (bclauses[i].getOccur().equals(BooleanClause.Occur.MUST)) {
>                // AND
>
>                }
>                else if (bclauses[i].getOccur().equals(BooleanClause.Occur.SHOULD)) {
>                // OR
>
>                }
>           }
> }
>
> Hope this helps.
>
>
>
>
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