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From Steven A Rowe <sar...@syr.edu>
Subject RE: What replaces IndexReader.openIfChanged in Lucene 4.0?
Date Mon, 05 Mar 2012 16:13:04 GMT
https://builds.apache.org//job/Lucene-trunk/lastSuccessfulBuild/artifact/artifacts/changes/Changes.html

-----Original Message-----
From: Benson Margulies [mailto:bimargulies@gmail.com] 
Sent: Monday, March 05, 2012 11:11 AM
To: java-user@lucene.apache.org
Subject: Re: What replaces IndexReader.openIfChanged in Lucene 4.0?

On Mon, Mar 5, 2012 at 11:07 AM, Steven A Rowe <sarowe@syr.edu> wrote:
> The second item in the top section in trunk CHANGES.txt (back compat policy changes):

Could you guys put this on the web site (or a link to it)? Or try to get it to SEO more prominently?

>
> * LUCENE-2858, LUCENE-3733: IndexReader was refactored into abstract
>  AtomicReader, CompositeReader, and DirectoryReader. To open 
> Directory-
>  based indexes use DirectoryReader.open(), the corresponding method in
>  IndexReader is now deprecated for easier migration. Only 
> DirectoryReader
>  supports commits, versions, and reopening with openIfChanged(). 
> Terms,
>  postings, docvalues, and norms can from now on only be retrieved 
> using
>  AtomicReader; DirectoryReader and MultiReader extend CompositeReader,
>  only offering stored fields and access to the sub-readers (which may 
> be
>  composite or atomic). SlowCompositeReaderWrapper (LUCENE-2597) can be
>  used to emulate atomic readers on top of composites.
>  Please review MIGRATE.txt for information how to migrate old code.
>  (Uwe Schindler, Robert Muir, Mike McCandless)
>
> -----Original Message-----
> From: Benson Margulies [mailto:bimargulies@gmail.com]
> Sent: Monday, March 05, 2012 10:54 AM
> To: java-user@lucene.apache.org
> Subject: What replaces IndexReader.openIfChanged in Lucene 4.0?
>
> Sorry, I'm coming up empty in Google here.
>
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