Checking if a class is java.lang.Enum
JavaEnumsInstanceofJava Problem Overview
I'm trying to know if a class is an Enum, but I think I'm missing something:
if (test.MyEnum.class instanceof Enum<?>.class)
obj = resultWrapper.getEnum(i, test.MyEnum.class);
else
obj = resultWrapper.getObject(i);
It gives me an error saying that Enum.class is not valid. So how I can check if a class is a Enum? I'm pretty sure it is possible to determine that, I'm just unable to get it.
Thanks
Java Solutions
Solution 1 - Java
The correct syntax would be:
Enum.class.isAssignableFrom(test.MyEnum.class)
but for enums, here is a more convenient method:
if (someObject.getClass().isEnum()))
Update: for enum items with a body (e. g. that override methods), this won't actually work. In that case, use
if (someObject instanceof Enum<?>)
Reference:
Solution 2 - Java
If you're talking about Java 5 new feature - enum
(it's not very new actually), then this is the way to go:
if (obj.getClass().isEnum()) {
...
}
If Enum
is your custom class, then just check that obj instanceof Enum
.