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From Cheng <zhoucheng2...@gmail.com>
Subject Re: Search multiple directories simultaneously
Date Thu, 23 Jun 2011 18:23:21 GMT
thanks man. very condense and easy to follow.

can i ask how the multiple search will impact the performance? i have
probably 50GB data in each of the 10-20 folders.

On Fri, Jun 24, 2011 at 1:04 AM, Uwe Schindler <uwe@thetaphi.de> wrote:

> IndexReader index1 = IndexReader.open(dir1);
> IndexReader index2 = IndexReader.open(dir2);
> IndexReader index3 = IndexReader.open(dir3);
> ...
> IndexReader all = new MultiReader(index1, index2, index3,...);
> IndexSearcher searcher = new IndexSearcher(all);
>
> ...search your indexes...
>
> all.close();
> index1.close();
> index2.close();
> index3.close();
> ...
>
>
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
>
> > -----Original Message-----
> > From: Cheng [mailto:zhoucheng2008@gmail.com]
> > Sent: Thursday, June 23, 2011 4:19 PM
> > To: java-user@lucene.apache.org
> > Subject: Search multiple directories simultaneously
> >
> > Hi,
> >
> > I have multiple indexed folders (or directories), each holding indexing
> files
> > for specific purposes. I want to do a search over these folders (or
> > directories) in a same query.
> >
> > Is it possible?
> >
> > Thanks
>
>
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