Draft proposal: allow the use of relational operators on Comparable classes (original) (raw)

Alex Miller alexdmiller at yahoo.com
Thu Mar 12 12:19:14 PDT 2009

Kevin Bourrillion <kevinb at google.com> said:

But focusing on enum types sidesteps one set of problems in favor of another. That being that most user-defined enum types do not actually have any logical order, and many that seem to have an order do not actually have that order guaranteed.

I would love to have the relational operators on enums...when it makes sense. What if there was a marker interface that your enum could implement? Something like OrderedEnum?

I suppose it might be bad form to have the language behavior as to whether something is legal be dependent on a marker interface. But you guys are the experts.

Alex

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