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From Erik Hatcher <e...@ehatchersolutions.com>
Subject Re: [VOTE] Break Back Compatibility "Contract" on Fieldable
Date Wed, 30 Jul 2008 13:17:59 GMT
+1 to all three from me.  Darn you, Java, for making object- 
orientation kludgey.

	Erik

On Jul 30, 2008, at 8:44 AM, Grant Ingersoll wrote:

> As they say, rules are meant to be broken...
>
> For a variety of reasons, some outlined below, I (and others) would  
> like us to break our back compatibility requirements and allow for  
> modifying the Fieldable interface in 2.x releases with the 3.x plan  
> to be to separate out write side interfaces from read side  
> interfaces per Hoss' suggestion in http://lucene.markmail.org/message/77qs2pjy3inzfddj?q=Fieldable%2C+AbstractField

> .
>
> Our reasons are based on LUCENE-1340, LUCENE-1219 and http://lucene.markmail.org/message/77qs2pjy3inzfddj?q=Fieldable%2C+AbstractField
>
> Simply put, my gut says there are almost no implementations of  
> Fieldable "in the wild", and those that are won't mind a few lines  
> of code change here and there to accommodate Fieldable changing  
> (since Fields really are just simple data structures and don't due  
> much algorithmically, except maybe LazyField)
>
> Thus, here's the vote part:
>
> 1. We mark Fieldable as being subject to change.  We heavily  
> advertise (on java-dev and java-user and maybe general) that in the  
> next minor release of Lucene (2.4), Fieldable will be changing.  It  
> is also marked at the top of CHANGES.txt very clearly for all the  
> world to see.  Since 2.4 is probably at least a month away, I think  
> this gives anyone with a pulse enough time to react.
>
> 2. We thus allow 1340 and 1219 to go forward, and maybe some others.
>
> 3. [OPTIONAL] We commit to rethinking input Documents and output  
> Documents for 3.x per Hoss' design suggestions in the email thread  
> above.  At a minimum, it becomes an abstract base class.
>
>
> +1 to all 3 items from me.
>
> -Grant
>
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