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Date: Sat, 06 Oct 2007 12:42:38 +0100
From: Alf Eaton <lists@hubmed.org>
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To: java-user@lucene.apache.org
Subject: Re: Group of documents.
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Raghu Ram wrote:
> Hi,
>       We have an application in which we want to index feeds. Each feed is a
> collection of articles and some other metadata. The problem is that
> sometimes we want to search for feeds and sometimes for articles. As far as
> I know lucene doesn't provide any abstraction for grouping  its documents.
> The only solution that we have in our minds now is to have two indexes one
> for articles and one for feeds. There are two problems with this approach
> 1) redundancy
> 2) as feeds are just a collection of articles and get updated we have to
> continuously update the document that represents the feed in the feed index.
> Is this an efficient operation ??
> 
> Can we have any other solutions/hacks for this problem ??

Add a multi-valued field to each article that says which feed(s) it's
found in?

alf

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