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From Ian Lea <ian....@gmail.com>
Subject Re: case-insensitive index and queries
Date Wed, 07 Nov 2012 16:09:24 GMT
>From a glance the code looks OK, but there's lots you're not showing
that could cause it not to work - whatever you mean by that. Fails to
get hits on docs you think are in the index?

Look at the index with Luke to see what actually has been indexed.

Look at Query.toString() to see how the query has been parsed.

Read the bit of the FAQ titled something like "Why are my searches not
working?".


--
Ian.


On Wed, Nov 7, 2012 at 3:50 PM, G.Long <jdevgl@gmail.com> wrote:
> Hi :)
>
> I would like the "text" field of my index to be case-insensitive.
> I'm using a PerFieldAnalyzerWrapper with a standardAnalyzer for this field
> for both indexing and querying. I read that StandardAnalyzer uses
> LowerCaseFilter to lowercase the value of the field but when I run a query,
> it doesn' work.
>
> Here is my query :
>
> IndexSearcher isearcher = new IndexSearcher(directory);
> BooleanQuery query = new BooleanQuery();
> PerFieldAnalyzerWrapper pfaWrapper = getPerfFieldAnalyzer();
>
> QueryParser parser = new QueryParser(Version.LUCENE_31, key, pfaWrapper);
> parser.setDefaultOperator(QueryParser.AND_OPERATOR);
> Query param = parser.parse(value);
> query.add(param, BooleanClause.Occur.MUST);
>
> TopFieldCollector collector = TopFieldCollector.create(new
> Sort(SortField.FIELD_DOC), 200000, true, false, false, false);
> isearcher.search(query, collector);
>
>
> The getPerFieldAnalyzer() methods looks like :
>
> if(perFieldAnalyzerWrapper==null){
>             perFieldAnalyzerWrapper = new PerFieldAnalyzerWrapper(new
> KeywordAnalyzer());
>             perFieldAnalyzerWrapper.addAnalyzer(FIELD_TEXT, new
> StandardAnalyzer(Version.LUCENE_31));
>             perFieldAnalyzerWrapper.addAnalyzer(FIELD_TITLE, new
> StandardAnalyzer(Version.LUCENE_31));
> }
> return perFieldAnalyzerWrapper;
>
> Is there something wrong with this code?
>
> Thank you :)
>
>
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