java - Calling Enum.values() on a generic type -

the goal implement generic enum translator. know enum1 , enum2 have same values , in same order.

the goal implement this:(this works)

private static enum1 translateenum(enum2 originalenum) {     return enum1.values()[originalenum.ordinal()]; } 

but have several enums, want make generic method: (this doesn't work)

private static < t extends enum<t>,g extends enum<g>> t translateenum(g originalenum) {     return t.values()[originalenum.ordinal()];         } 

my problem @ t.values() compiler tells me :

the method values() undefined type t

do guys have idea of how solve issue or have alternative idea problem?

a common way pass target class object (or object of target class) argument function, use methods class object tricky part. enum classes, class object has a method returns equivalent of enum.values(). can use enum values target class:

public class scratch {     enum lower { a, b, c };     enum upper { a, b, c };      static <t extends enum<t>> t translate(enum<?> afrom, class<t> ato) {         return ato.getenumconstants()[afrom.ordinal()];     }      public static void main(string[] args) {         (lower ll : lower.values()) {             upper uu = translate(ll, upper.class);             system.out.printf("upper of '%s' '%s'\n", ll, uu);         }         (upper uu : upper.values()) {             lower ll = translate(uu, lower.class);             system.out.printf("lower of '%s' '%s'\n", uu, ll);         }     } } 

running produces following output:

upper of 'a' 'a' upper of 'b' 'b' upper of 'c' 'c' lower of 'a' 'a' lower of 'b' 'b' lower of 'c' 'c'