enum-objectify

Java Enum bean object conversion Utilities

1. method#1 - use the generic DescriptiveEnumObject as a receiver, then use EnumObjectUtils to do the conversion
   • example:

   class Test {
       public static void main(String[] args){
           DescriptiveEnumObject<SexEnum, Character> sexEnum = EnumObjectUtils.asDescriptiveEnumObject(DescriptiveEnumObject.class, SexEnum.FEMALE);
           System.out.println(String.format("sex enum = %s", gson.toJson(sexEnum)));
       }
   }

2. method#2 - inherit DescriptiveEnumObject and convert directly from EnumObjectUtils
   • example:

   // === enum class ... ===
   public enum SexEnum implements IDescriptiveEnum<Character> {
       MALE('M', "male"), FEMALE('F', "FEMALE");
       
       SexEnum(char code, String description) {
           // implement enum ...
       }
   }
   
   // === enum object class ===
   class SexEnumObject extends DescriptiveEnumObject<SexEnum, Character> {
       // implement constructor ...
       public SexEnumObject(SexEnum enumInstance) {
           super(enumInstance);
       }
   }
   
   // === usage ===
   public class TestMain {
       public static void main(String[] args) {
           Gson gson = new Gson();
           SexEnumObject mSexObj = EnumObjectUtils.asDescriptiveEnumObject(SexEnumObject.class, SexEnum.MALE);
           System.out.println("sex = "+gson.toJson(mSexOb));
        }
   }

3. Get enum by specifying code
   • example:

   // === usage ===
   public class TestMain {
       public static void main(String[] args) {
           SexEnum mSex = EnumObjectUtils.getByCode(SexEnum.class, "M"); 
       }
   }

4. List all possible values to EnumObject List
   • example:

   // === usage ===
   public class TestMain {
       public static void main(String[] args) {
           List<SexEnumObject> sexEnumObjList = EnumObjectUtils.asDescriptiveEnumObjectList(SexEnum.class, SexEnumObject.class);
                   System.out.println(String.format("SexEnum.values() as obj list = %s", gson.toJson(sexEnumObjList)));
       }
   }

5. List all possible values as EnumObject Map
   • example:

   // === usage ===
   public class TestMain {
       public static void main(String[] args) {
           Map<Character, SexEnumObject> sexEnumObjMap = EnumObjectUtils.asDescriptiveEnumObjectMap(SexEnum.class, SexEnumObject.class);
           System.out.println(String.format("SexEnum.values() as obj map = %s", gson.toJson(sexEnumObjMap))); 
       }
   }