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views:

200

answers:

3

I've got the class object for an enum (I have a Class<? extends Enum>) and I need to get a list of the enumerated values represented by this enum. The values static function has what I need, but I'm not sure how to get access to it from the class object.

+9  A: 

Class.getEnumConstants

Tom Hawtin - tackline
Huh... I've never noticed that method before. +1
ChssPly76
It is all a bit twisted... (but, hey, that is reflection for you)
Tom Hawtin - tackline
+3  A: 

using reflection is simple as calling Class#getEnumConstants():

List<Enum> enum2list(Class<? extends Enum> cls) {
   return Arrays.asList(cls.getEnumConstants());
}
dfa
+1  A: 

If you know the name of the value you need:

     Class<? extends Enum> klass = ... 
     Enum<?> x = Enum.value(klass, "NAME");

If you don't, you can get an array of them by (as Tom got to first):

     klass.getEnumConstants();
Yishai