Method reference conversion
Howard Lovatt
howard.lovatt at gmail.com
Thu Dec 15 22:00:02 PST 2011
It would be nice if they were equal() even if !=
On 16 December 2011 13:08, Brian Goetz <brian.goetz at oracle.com> wrote:
> Slight correction -- in this particular case (where the method reference
> is a bound instance reference), it seems quite unlikely that these
> references would be ==. However, for static references and unbound
> instance references, it is quite likely that they will be ==. In any case,
> it is unlikely the spec will make promises that are potentially expensive
> to keep.
>
> On Dec 15, 2011, at 4:10 PM, Brian Goetz wrote:
>
> > Most likely outcome: no guarantees (such guarantees come with a cost)
> but it is "highly likely" that method1 == method2.
> >
> > When we finish the implementation of functional interface conversion
> we'll have a update.
> >
> > On Dec 15, 2011, at 3:35 PM, Uther wrote:
> >
> >> Hello. I have been reading this mailing list from long time but didn't
> >> post anything right now since I'm not a Java expert, but I was
> >> wonderning about Method references.
> >>
> >> Will every reference to a same method be converted to the same object?
> >> Will the language specification tell something about it?
> >>
> >> For exemple:
> >> Runnable method1 = this::myMethod;
> >> Runnable method2 = this::myMethod;
> >> System.out.println(method1 == method2); //returns true
> >>
> >> I'm not sure it is technicaly possible, but it would be very nice that
> >> specification garantee that, it may allow to do interesting things like
> >> a removeListener(this::myListener) after a
> addListener(this::myListener);
> >>
> >
> >
>
>
>
--
-- Howard.
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