EnumerationSerialization

Java implementation for a generic enum serializer and deserializer

Uses annotations custom annotations. The enum's deserializer can be specified as a subclass of the base deserializer, or instead the class of the enum can be specified via annotation.

@JsonSerialize(using = EnumerationSerializer.class)
@JsonDeserialize(using = RGB.Deserializer.class)
@EnumJson(serializeProjection = Projection.NAME)
enum RGB {
	RED,
	GREEN,
	BLUE;

	public static class Deserializer extends EnumerationDeserializer<RGB> {

		private static final long serialVersionUID = 1L;

		public Deserializer() {
			super(RGB.class);
		}
	}
}

OR

@JsonSerialize(using = EnumerationSerializer.class)
@JsonDeserialize(using = EnumerationDeserializer.class)
@EnumJson(serializeProjection = Projection.NAME, deserializationClass = RGB.class)
enum RGB {
	RED,
	GREEN,
	BLUE
}

There are two special annotations to identify a value and an alias.

@JsonSerialize(using = EnumerationSerializer.class)
@JsonDeserialize(using = SomeDays.Deserializer.class)
@EnumJson(serializeProjection = Projection.VALUE)
enum SomeDays {
	MONDAY("Lunes", "Monday"),
	TUESDAY("Martes", "Tuesday"),
	WEDNESDAY("Miercoles", "Wednesday");

	@EnumJson(serializeProjection = Projection.VALUE)
	final String value;

	@EnumJson(serializeProjection = Projection.ALIAS)
	final String alias;

	SomeDays(String v, String a) {
		this.value = v;
		this.alias = a;
	}

	public static class Deserializer extends EnumerationDeserializer<SomeDays> {
		private static final long serialVersionUID = 1L;
		public Deserializer() {
			super(SomeDays.class);
		}
	}
}

The annotations can be applied to a class that has members of your enum.

static class SomeStuff {

	//Serialize as the Ordinal
	@EnumJson(serializeProjection = Projection.ORDINAL)
	public SomeDays someDay = SomeDays.MONDAY;

	//Serialize as the Identifier
	@EnumJson(serializeProjection = Projection.NAME)
	public SomeDays nextDay = SomeDays.values()[someDay.ordinal() + 1];

	//Serialize as the Value
	@EnumJson(serializeProjection = Projection.VALUE)
	public SomeDays middleDay = SomeDays.WEDNESDAY;

	//Serialize as the Alias
	@EnumJson(serializeProjection = Projection.ALIAS)
	public SomeDays tuesday = SomeDays.TUESDAY;

	//Serialize as the Ordinal
	@EnumJson(serializeProjection = Projection.ORDINAL)
	public SomeNums aNum = SomeNums.ONE;

	//Serialize as the Identifier
	@EnumJson(serializeProjection = Projection.NAME)
	public SomeNums anotherNum = SomeNums.TWO;

}