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From Andrew Norman <kiwico...@gmail.com>
Subject Re: Index Not Finding Results some times
Date Mon, 16 Jun 2014 16:28:47 GMT
Ah, that now makes sense.

Changed the code and now it works.

Thanks for the help.

On Monday, 16 June 2014, Allison, Timothy B. <tallison@mitre.org> wrote:

> The problem is that you are using an analyzer at index time but then not
> at search time.
>
> StandardAnalyzer will convert "Name1" to "name1" at index time.
>
> At search time, because you aren't using a query parser (which would by
> default lowercase your terms) you are literally searching for "Name1" which
> doesn't exist in your index.
>
> -----Original Message-----
> From: Andrew Norman [mailto:kiwicoder@gmail.com <javascript:;>]
> Sent: Monday, June 16, 2014 8:43 AM
> To: java-user@lucene.apache.org <javascript:;>
> Subject: Index Not Finding Results some times
>
> Hi,
>
> I am using Lucene 3.6.2 (I cannot upgrade due to 3rd party dependencies).
>
> I have written the following code below to illustrate the problem. I create
> a single document, add three fields, put it into the index. When I attempt
> to find the document using exact matches I can find the document 2 out of 3
> times. I have read the documentation and google'd but I am currently
> drawing a blank as to where my mistake is. Any pointers would be gratefully
> received.
>
> Regards
> Kiwicoder
>
>
> public static void main(String[] args) throws CorruptIndexException,
> LockObtainFailedException, IOException {
>         RAMDirectory directory = new RAMDirectory();
>
>         IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_36,
> new StandardAnalyzer(Version.LUCENE_36));
>         IndexWriter writer = new IndexWriter(directory, config);
>
>         Document doc = new Document();
>
>         doc.add(new Field("id", "c71fa7f8-32c2-4cb3-97d8-4728322079db",
> Field.Store.YES, Field.Index.NOT_ANALYZED));
>         doc.add(new Field("type", "data", Field.Store.NO,
> Field.Index.ANALYZED));
>         doc.add(new Field("name", "Name1", Field.Store.NO,
> Field.Index.ANALYZED));
>
>         writer.addDocument(doc);
>
>         writer.close();
>
>         // -------------------------------------------
>         IndexReader reader = IndexReader.open(directory);
>
>         IndexSearcher search = new IndexSearcher(reader);
>         System.out.println("ID:   " + search.search(new TermQuery(new
> Term("id", "c71fa7f8-32c2-4cb3-97d8-4728322079db")), 100).totalHits); // 1
> document found
>         System.out.println("TYPE: " + search.search(new TermQuery(new
> Term("type", "data")), 100).totalHits); // 1 document found
>         System.out.println("NAME: " + search.search(new TermQuery(new
> Term("name", "Name1")), 100).totalHits); // 0 document found
>         search.close();
>     }
>

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