com.github.avatar21:enum-objectify

enum-objectify

Java Enum bean object conversion Utilities

• 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)));
      }
  }
  

• 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));
       }
  }
  

• Get enum by specifying code
  • example:

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

• 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)));
      }
  }
  

• 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))); 
      }
  }