Compare Enums in SpEL

Question

At Spring's @Cacheable annotation I want to specify an unless condition.

However my return value is neither a primitive type nor a Java bean, but an Enum.

How can I compare for equality with another Enum in SpEL (Spring Expression Language)?

Solution 1

#result == T(fully.qualified.path.to.AnEnum).A_VALUE

Solution 2

#object.someEnumProperty.name() == 'CERTAIN_VALUE'

would work as well.

Comments

[Sotirios Delimanolis]

Can you be more specific? What are the two operands? What are you comparing?

[Harold L. Brown]

@SotiriosDelimanolis An instance of the Enum and a value of the enum. Like instance == Enum.CERTAIN_VALUE.

[sorrymissjackson]

You are right @michaldo. I changed my answer to something that actually works. Wrote this from the top of my head. Sorry for the first bad attempt.

[michaldo]

Now is OK. I cancelled my comment

[Wouter]

This can be lot shorter than the accepted answer, because you do not need to write the whole fully qualified path.

[aksh1618]

But you'd have to ensure it always matches the enum variable in case it changes

[NCrash]

it works as well