How to make key value like enum in java [duplicate]

Question

I need to make an Enum containing some strings with spaces and their values in int like:

public enum status{
Active(1),
Inactive(2);
}

because I am using it with hibernate and also will convert it to JSON for alpaca js forms.

like:

[{"text": "Inactive", "value":"2"},{"text": "Active", "value":"1"}]

I'm stuck in making enum. how to make such type of enum?

Answer 1

You can not put space between strings. Instead of the you can use underscore as follows:

In_Active

You can use this way:

enum Status {

    ACTIVE("Active", 1), IN_ACTIVE("In Active", 2);

    private final String key;
    private final Integer value;

    Status(String key, Integer value) {
        this.key = key;
        this.value = value;
    }

    public String getKey() {
        return key;
    }
    public Integer getValue() {
        return value;
    }
}

Answer 2

You can hold multiple values in one enum and even have getters to handle them. Here is an example I used once (I try to adapt it to your problem):

public enum Status{

    ACTIVE(1, "Active"),
    INACTIVE(2, "In Active");

    private final Integer value;
    private final String text;

    /**
     * A mapping between the integer code and its corresponding text to facilitate lookup by code.
     */
    private static Map<Integer, Status> valueToTextMapping;

    private Status(Integer value, String text){
        this.value = value;
        this.text = text;
    }

    public static Status getStatus(Integer i){
        if(valueToTextMapping == null){
            initMapping();
        }
        return valueToTextMapping.get(i);
    }

    private static void initMapping(){
        valueToTextMapping = new HashMap<>();
        for(Status s : values()){
            valueToTextMapping.put(s.value, s);
        }
    }

    public Integer getValue(){
        return value;
    }

    public String getText(){
        return text;
    }

    @Override
    public String toString(){
        final StringBuilder sb = new StringBuilder();
        sb.append("Status");
        sb.append("{value=").append(value);
        sb.append(", text='").append(text).append('\'')
        sb.append('}');
        return sb.toString();
    }
}

So in your code you can simply use Status.ACTIVE and it will represent an instance of your Enum, that holds value and text the way you want it