On Fri, Oct 2, 2009 at 10:18 PM, Earwin Burrfoot <ear...@gmail.com> wrote:

> Builder pattern allows you to switch concrete implementations as you
> please, taking parameters into account or not.

We could also achieve this w/ static "factory" method.  EG
IndexReader.open(IndexReader.Config) could switch between concrete
impls (it already does today).

Mike

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