Re: [CLucene-dev] Beginner not getting any hits on search

[Mark W. <mwi...@gm...>]

Ah, thanks a lot!  I knew it had to be a dumb mistake, and it was! Thanks
for the hint about Luke....

On Sun, Mar 22, 2015 at 5:24 PM, cel tix44 <cel...@gm...> wrote:

> Mark
>
> Looks like your "field config" is not correct.
>
> In your code, you used the logical AND ( && ) -- rather than the bitwise
> OR ( | ):
> int config = Field::STORE_YES | Field::INDEX_TOKENIZED;
>
> >>> I can see my fields in the index file
> To browse your index, you can use a wonderful tool called "Luke". To find
> it, just google for: luke lucene
>
> With Luke, I was able to see that :
> -- your original code produced an 'empty' index (it had no terms);
> -- with the change suggested above -- the index was populated with 3 terms
> (nixon, obama, clinton); and your query returned 1 hit in Document ID 0.
>
> Hope this helps.
>
> Regards
> Celto
>
>
>
> On Mon, Mar 23, 2015 at 1:24 AM, Mark Wilson <mwi...@gm...>
> wrote:
>
>> I'm not sure what I'm doing wrong.  I can see my fields in the index
>> file, but my query/search returns no hits.
>>
>> Here is my index creation code:
>>
>> lucene::analysis::SimpleAnalyzer* analyzer;
>>
>> int main(int argc, char** argv)
>> {
>>     analyzer = new lucene::analysis::SimpleAnalyzer();
>>     Directory* indexDir = FSDirectory::getDirectory("../Index");
>>
>>     IndexWriter* w = new IndexWriter(indexDir, analyzer, true, true);
>>
>>     int config = Field::STORE_YES && Field::INDEX_TOKENIZED;
>>
>>     Field* field;
>>     Document* doc;
>>
>>     doc = new Document();
>>
>>     field = new Field(L"president", L"Nixon", config);
>>     doc->clear();
>>     doc->add(*field);
>>     w->addDocument(doc);
>>
>>     field = new Field(L"president", L"Obama", config);
>>     doc->clear();
>>     doc->add(*field);
>>     w->addDocument(doc);
>>
>>     field = new Field(L"president", L"Clinton", config);
>>     doc->clear();
>>     doc->add(*field);
>>     w->addDocument(doc);
>>
>>     w->close();
>>
>>     indexDir->close();
>> }
>>
>> Here is my query code:
>>
>>
>> int main(int argc, char** argv)
>> {
>>
>>     IndexReader* reader = IndexReader::open("../Index");
>>
>>     lucene::analysis::SimpleAnalyzer* analyzer =
>>         new lucene::analysis::SimpleAnalyzer();
>>
>>     IndexReader* newreader = reader->reopen();
>>     if ( newreader != reader )
>>     {
>>         _CLLDELETE(reader);
>>         reader = newreader;
>>     }
>>     IndexSearcher searcher(reader);
>>
>>
>>     Query* query = QueryParser::parse(L"Nixon*",
>>         L"president", analyzer);
>>     Hits* hits = searcher.search(query);
>>     cout << "Total hits: " << hits->length() << endl;
>> }
>>
>>
>> I get no hits on this. I've tried to make my experiment as simple as
>> possible, but I get nothing.  Is the query formed wrong?
>>
>> Thanks for any help.
>>
>> Regards,
>> Mark
>>
>>
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>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming The Go Parallel Website,
> sponsored
> by Intel and developed in partnership with Slashdot Media, is your hub for
> all
> things parallel software development, from weekly thought leadership blogs
> to
> news, videos, case studies, tutorials and more. Take a look and join the
> conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
> CLucene-developers mailing list
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> https://lists.sourceforge.net/lists/listinfo/clucene-developers
>
>