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From Daniel Wertheim <dan...@wertheim.se>
Subject Re: Problems with IndexSearcher
Date Mon, 05 Jul 2010 21:26:59 GMT
I get that a searcher needs an index to search, but why not let us create an
instance of the searcher which doesn't blow up untill consumed? It takes an
Directory as dependency, not a writer... The LuceneDirectory could be
responsible for initializing the dir so that the searcher doesn't have a
direct dependency on the writer. The dir should then notify dependent
searcher(s), "hey, the indexed changed"... That way the searcher can be
created and Or maybe return null as result of searches when no index exists.

//Daniel

2010/7/5 Digy <digydigy@gmail.com>

> No. To make a search, you have to have an index
> and Indexes are created with IndexWriter.
> (creating an empty index with IndexReader(or IndexSearcher) would be weird)
> DIGY
>
> -----Original Message-----
> From: Daniel Wertheim [mailto:daniel@wertheim.se]
> Sent: Monday, July 05, 2010 10:03 PM
> To: lucene-net-dev@lucene.apache.org
> Subject: Re: Problems with IndexSearcher
>
> Hi,
> Why? Doesn't that create an unclear coupling from the Searcher to the
> Writer?
>
> Does this mean that they should be seen as one "unit"?
>
> //Daniel
>
> 2010/7/5 Digy <digydigy@gmail.com>
>
> > No. You have to initialize it with an IndexWriter.
> > DIGY
> >
> > -----Original Message-----
> > From: Daniel Wertheim [mailto:daniel@wertheim.se]
> > Sent: Monday, July 05, 2010 7:59 PM
> > To: lucene-net-dev@lucene.apache.org
> > Subject: Fwd: Problems with IndexSearcher
> >
> > ---------- Forwarded message ----------
> > From: Daniel Wertheim <daniel@wertheim.se>
> > Date: 2010/7/5
> > Subject: Problems with IndexSearcher
> > To: lucene-net-user@lucene.apache.org
> >
> >
> > Hi,
> >
> > Isn't it possible to create an instance of an IndexSearcher for a
> directory
> > that is empty? Note, I don't consume it, just create it, still there's an
> > exception thrown:
> >
> > "no segments* file found in Lucene.Net.Store.SimpleFSDirectory"
> >
> > If I create an writer first, everything works fine.
> >
> > //Daniel
> >
> >
>
>

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