How do I reference a nested type in SpEL?

Question

Given a class containing an enum:

public class MyClass {
    public enum NestedEnum {        
        value1(1),
        value2(2);

        private int code;

        private NestedEnum(int code) {
            this.code = code;
        }

        public int getCode() {
            return code;
        }
    }
}

how do I reference NestedEnum? This:

#{T(MyClass.NestedEnum).value1.getCode()}

results in the exception:

org.springframework.expression.spel.SpelEvaluationException: EL1005E:(pos 0): Type cannot be found 'namespace.MyClass.NestedEnum'

This:

#{T(T(MyClass).NestedEnum).value1.getCode()}

results in the exception:

org.springframework.expression.spel.SpelParseException: EL1043E:(pos 3): Unexpected token.  Expected 'rparen())' but was 'lparen(()'

I cannot think of any other good options to try.

Answer 1

You have to separate the enum using a $ sign:

#{T(MyClass$NestedEnum).value1.getCode()}