Space in enum

[rohitpant]

hi all:
I tied this

enum type --class ~.reference.IndianStates
enum constant --name Andhra Pradesh

but could see that IndianStates.java had the following entries

public enum IndianStates {

Andhra

}

anything I am missing/ don't know ?

I was hoping it would be

public enum IndianStates {

Andhra Pradesh

}

thanks
rp

[Andrew Swan]

Enum constants can't have spaces in them; your expected code wouldn't compile, regardless of whether you're using Roo. This would be OK:

public enum IndianStates {

    Andhra_Pradesh  // Note the underscore

}

Although personally I like to use all upper case for enum constants.

[rohitpant]

Thanks for your reply and pointing out the default behavior of enum.

I was very keen to know that in Roo - how would anyone go about creating "drop downs" on the default UI it generates.

One quick way was creating an enum and mapping it back to a domain class like shown in one of the Roo samples

enum type --class ~.reference.PetType
enum constant --name Dog
enum constant --name Cat
enum constant --name Bird

and the later . . .

entity --class ~.domain.Owner --extends ~.domain.AbstractPerson --testAutomatically
.
.
.
field enum --fieldName specialty --type ~.reference.Specialty --notNull false


so this a a nice way to quickly create a drop down of pet type.
what if the pet type had a space ? any thoughts if I could have used something else instead of enum then ?

thanks

rohit

[Andrew Swan]

The drop-downs just show the toString() of the relevant object, so you can achieve the desired display values by overriding that method per enum and/or per constant as follows:

    enum State {
        
        Andhra_Pradesh,    // uses the enum-level toString
        
        Gujarat {
            @Override
            public String toString() {
                return "A totally different name";
            }
        };
        
        @Override
        public String toString() {
            return name().replace("_", " ");
        }
    }

[rohitpant]

you are abs rite.
Thanks for the "core" java help !

rohit