Hi Gary.
On Fri, 4 Aug 2017 11:10:57 -0700, Gary Gregory wrote:
For example, I have a enum like:
public enum CardinalDirection (NORTH,SOUTH,EAST,WEST)
and I want to say
traveler.travel(nextRandomDirection());
where
public CardinalDirection nextRandomDirection() {
return rng.next(CardinalDirection.class);
}
Actually, "Commons RNG" already provides all the necessary
functionality
for a one-liner:
---CUT---
import java.util.Arrays;
import org.apache.commons.rng.simple.RandomSource;
import org.apache.commons.rng.sampling.CollectionSampler;
CollectionSampler<CardinalDirection> r
= new
CollectionSampler<>(RandomSource.create(RandomSource.SPLIT_MIX_64),
Arrays.asList(CardinalDirection.values()));
CardinalDirection e = r.sample();
---CUT---
Cheers,
Gilles
Gary
On Fri, Aug 4, 2017 at 11:02 AM, Amey Jadiye <ameyjad...@gmail.com>
wrote:
Hi,
What's usecase for this BTW ? Might be unaware about requirement but
this
forced me to think why would someone need random enum ?
Enums are generally "limited" immutable constants and people choose
enum
over the array of constants for good reason, however random provider
seems
best suited for choosing value from any Data-Structure holding "lot"
of
values.
I think it's little weird but I would be happy if someone explain
advantages. :-)
Regards,
Amey
On Fri, Aug 4, 2017, 11:17 PM Gary Gregory <garydgreg...@gmail.com>
wrote:
> Hi All,
>
> Any thoughts on generation when you want to the domain to be an
enum?
>
> SomeEnum e = UniformRandomProvider.next(SomeEnum);
>
> ?
>
> Is that too weird for this component?
>
> Gary
>
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
For additional commands, e-mail: dev-h...@commons.apache.org
