Function type naming conventions

[Dan Smith]

On Jan 3, 2013, at 2:07 PM, Dan Smith <daniel.smith at oracle.com> wrote:

> I'm sure I'll never remember whether IntFunction is int -> int, T -> int, or int -> T, so it'll trip me up a little each time I read it.
> 
> Stephen Colebourne makes a similar comment in the comments list.  His suggestion is to use a different base name for functions that return primitives -- we already have "Predicate" and "Block"; now we just need "IntThingy" and "DoubleThingy".  Stephen suggests "CalcInt", which I don't love, but maybe there's a word out there that nicely conveys the concept much like "Predicate"?

I did a little Googling: "predicate" is a.k.a. "boolean-valued function".  "Real-valued function" and "integer-valued function" are also fairly widely-used terms.  But I didn't come across any more concise terms for those...

—Dan