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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: Weird document equals and hash through IndexReader & IndexSearcher
Date Thu, 04 Nov 2010 08:58:28 GMT
Hi Carmit,

equals and hashCode is not implemented for oal.document.Document, so two
instances always compare not to each other. The same happens if you retrieve
the document two times from same IndexReader.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de

> -----Original Message-----
> From: Carmit Sahar [mailto:carmitsp@gmail.com]
> Sent: Thursday, November 04, 2010 9:27 AM
> To: java-user@lucene.apache.org
> Subject: Weird document equals and hash through IndexReader &
> IndexSearcher
> 
> Hi,
> 
> I have a weird result:
> If I access the same document through the IndexReader or IndexSearcher,
they
> are not equal and have different hash values:
> 
>                 Document doc1 = indexSearcher.doc(i);
>                 Document doc2 =
indexSearcher.getIndexReader().document(i);
>                 System.out.println("    Equal: " + doc1.equals(doc2) + ",
> Hash: " + doc1.hashCode() + ", " + doc2.hashCode() + ", num:" + i);
> 
> I'm using Lucene 3.0.2
> (No multithreads, nobody is simultaneously updating the index) What am I
> missing?
> Thanks
> Carmit
> (Could you please forward your answers to my private address as well?)


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