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From Gary Gregory <ggreg...@seagullsw.com>
Subject RE: [collections] Functors: why in commons.collections and not co mmons.lang?
Date Mon, 01 Dec 2003 23:34:28 GMT
There are two issues here: (1) where is the best place for functor things to
live in and (2) some folks are allergic ;-) to some projects depending on
each other.

Gary

> -----Original Message-----
> From: Keith Bennett [mailto:krbennettmd@yahoo.com]
> Sent: Monday, December 01, 2003 15:24
> To: commons-dev@jakarta.apache.org
> Subject: [collections] Functors: why in commons.collections and not
> commons.lang?
> 
> I understand that Functor interfaces (Factory, Predicate, Closure,
> Transformer) are used by classes in the collections library, and need
> to be accessible by that library.
> 
> However, I believe these interfaces are universally useful in cases
> having nothing to do with collections.
> 
> It's too bad they're not in java.lang.  I wonder if they could have
> been
> placed in commons.lang instead of commons.collections.  I guess that
> would have required that commons.lang *always* be present when
> commons.collections was used, and that is undesirable.  Is this how
> the decison was made to include them in commons.collections?
> 
> - Keith Bennett
> 
> 
> 
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