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From doz...@gmx.de
Subject Re: IndexReader delete(int i)
Date Tue, 30 Aug 2005 08:05:54 GMT
Hi Yonik,

thank you very much!!
Now it works very well!! 
The formula "numDocs() == maxDocs() - numer_of_deleted_docs" should be stand
in the API! :)

Thank you again!
Bye Derya

> --- Ursprüngliche Nachricht ---
> Von: Yonik Seeley <yseeley@gmail.com>
> An: java-user@lucene.apache.org
> Betreff: Re: IndexReader delete(int i)
> Datum: Mon, 29 Aug 2005 15:55:26 -0400
> 
> Perhaps because you are not iterating over all the documents?
> numDocs() == maxDocs() - numer_of_deleted_docs
> So first try replacing numDocs() with maxDocs()
> 
> -Yonik
> 
> 
> On 8/29/05, Derya Kasapoglu <dozean@gmx.de> wrote:
> > Hi,
> > 
> > if i delete a document from index, what does the it do?
> > I want to know because if i delete documents from index which are
> > not anymore in the dokument directories like that:
> > 
> > IndexReader reader = IndexReader.open(dir);
> > 
> > for (int i=0; i<reader.numDocs(); i++) {
> > 
> >         Document doc =reader.document(i);
> >         String path = doc.get("path");
> >         File file = new File(path);
> > 
> >         if (!file.exists()) reader.delete(i);
> > }
> > 
> > reader.close();
> > 
> > the IndexReader doesn't delete all dokuments by the first run!!!!
> > 
> > I mean if i say
> > if (!file.exists()) System.out.println(path);
> > i get all documents which are not in the directory  but if i say
> reader.delete(i)
> > it deletes only a part of the documents which are not exists!!!
> > If i start the application again it delets the rest, sometimes not all
> of the rest,
> > but if i start it again and again it deletes all documents which are not
> exists.
> > 
> > But why it doen't do it by the first run?
> > Does delete() do something  with the document IDs? Or something else?
> > 
> > 
> > 
> > 
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> >
> 
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