lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Marco Lazzara <marco.lazz...@gmail.com>
Subject Re: Problems searching index
Date Mon, 18 May 2009 16:26:05 GMT
Hi everybody,
I've a problem with my searching index.
I've created a stand alone application and it works perfectly.
I've put them on tomcat launching with java web start,but if I run the
query(the same query) I always obtain no results!!!Why??
help Me!!!thanks a lot!!

Marco Lazzara

2009/5/18 Eric LeVin <ejlevin1.dev@gmail.com>

> Apparently it was because I needed to actually look at the method signature
> a bit closer :)  not reassigning my indexReader instance would mean I was
> always using the first instance created which wouldn't have the documents in
> them.  Thanks again for your help!
>
> -Eric LeVin
>
>
> balasubramanian sudaakeran wrote:
>
>> Hi Eric LeVin,
>> I think whenever you reopen the indexReader you have to re-create
>> indexSearcher also. This is because reopen of indexReader will give you a
>> new instance if the underlying data is changed.
>>
>> Function documentation for IndexReader.reopen
>>   * If the index has not changed since this instance was (re)opened, then
>> this
>>   * call is a NOOP and returns this instance. Otherwise, a new instance is
>>   * returned. The old instance is <b>not</b> closed and remains usable.<br>
>>   * <b>Note:</b> The re-opened reader instance and the old instance might
>> share
>>   * the same resources. For this reason no index modification operations
>> * (e. g. {@link #deleteDocument(int)}, {@link #setNorm(int, String, byte)})
>>   * should be performed using one of the readers until the old reader
>> instance
>>   * is closed. <b>Otherwise, the behavior of the readers is undefined.</b>
>>   * <p>
>>
>>
>>
>> ----- Original Message ----
>> From: Eric LeVin <ejlevin1.dev@gmail.com>
>> To: java-user@lucene.apache.org
>> Sent: Monday, May 18, 2009 7:30:47 PM
>> Subject: Problems searching index
>>
>> Hi Everyone--
>>   So I'm not quite sure what is going on with my Lucene index, but I'm
>> having some issues searching.  I've created a simple little index of 10
>> documents as follows:
>>
>> id: 1
>> type: Article
>> content: <<some content>>
>>
>> ....
>>
>> id: 10
>> type: Article
>> content: <<other content>>
>>
>> So I created a simple TermQuery for starters that would pull back all of
>> my Article types:
>>
>> BooleanQuery bq = new BooleanQuery();
>> bq.add(new TermQuery(new Term(FIELD_TYPE, "Article")), Occur.MUST);
>>
>> I realize that I could simply do a TermQuery, but I want to be able to add
>> additional content constraints after I get this working.  So here is where
>> my confusion comes in:
>>
>> If I run the query against my IndexSearcher, I get 0 results; however, if
>> I run it as a delete on the IndexWriter, I can open it in Luke and see the
>> entire index deleted.  So why would the writer be finding documents and the
>> searcher wouldn't?  As a note, whenever I am adding documents, I am calling
>> reopen() on the reader.  Here is how I'm creating the
>> writer/reader/searcher:
>>
>> KeywordAnalyzer ka = new KeywordAnalyzer();
>>       analyzer.addAnalyzer(FIELD_ID, ka);
>>       analyzer.addAnalyzer(FIELD_TYPE, ka);
>>       analyzer.addAnalyzer(FIELD_CONTENT, contentAnalyser);
>>             indexWriter = new IndexWriter(directory, analyzer, true,
>> MaxFieldLength.UNLIMITED);
>>       indexReader = IndexReader.open(directory);
>>       indexSearcher = new IndexSearcher(indexReader);
>>
>> Any thoughts?  Thanks so much for all the help!
>>
>> -Eric LeVin
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> For additional commands, e-mail: java-user-help@lucene.apache.org
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> For additional commands, e-mail: java-user-help@lucene.apache.org
>>
>>
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message