implements Serializable {

    private final Class<T> enumClass;

    StringConverter(Class<T> enumClass) {
      this.enumClass = checkNotNull(enumClass);
    }

    @Override
    protected T doForward(String value) {
      return Enum.valueOf(enumClass, value);
    }

    @Override
    protected String doBackward(T enumValue) {
      return enumValue.name();
    }

    @Override

      this.sourceFormat = checkNotNull(sourceFormat);
      this.targetFormat = checkNotNull(targetFormat);
    }

    @Override
    protected String doForward(String s) {
      return sourceFormat.to(targetFormat, s);
    }

    @Override
    protected String doBackward(String s) {
      return targetFormat.to(sourceFormat, s);
    }

    @Override

      this.sourceFormat = checkNotNull(sourceFormat);
      this.targetFormat = checkNotNull(targetFormat);
    }

    @Override
    protected String doForward(String s) {
      return sourceFormat.to(targetFormat, s);
    }

    @Override
    protected String doBackward(String s) {
      return targetFormat.to(sourceFormat, s);
    }

    @Override