FlatMapper (original) (raw)

Remi Forax forax at univ-mlv.fr
Tue Feb 12 11:17:46 PST 2013

On 02/12/2013 07:59 PM, Brian Goetz wrote:

Are we going to have a consistency issue with FlatMapper vs. Function? For instance we have ToIntFunction, but not ToIntFlatMapper. Instead we have FlatMapper.ToInt.

I think that's a function of where it lands, which is open for discussion. Currently it is in java.util.stream, where the dominant convention is Foo.OfBar. If we moved it to java.util.function, we'd "flatten" the namespace. I currently lean towards JUS, since this does not seem as important a top-level type as Function, Predicate, or Supplier. But such decisions often turn around to bite one.

I've already said this, but nobody cares, there is a usability issue with FlatMapper.ToInt, the very same that the one that was reported more than 10 years ago when java.awt.geom introduces classes like Point2D.Double [1][2].

cheers, Rémi [1] http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4198349 [2] https://forums.oracle.com/forums/thread.jspa?threadID=1665781

More information about the lambda-libs-spec-observers mailing list