[forge-dev] [Roaster] Type<?> instanceof

Daniel Cunha danielsoro at gmail.com
Thu Jul 3 20:45:54 EDT 2014

Hi folks,

I want do that:

type instanceof Number.

That case, my type can be AtomicInteger, AtomicLong, BigDecimal,
BigInteger, Byte, Double, Float, Integer, Long and Short


 public static Type<?> getIdType(JavaClass<?> entity)
      for (Member<?> member : entity.getMembers())
         if (member.hasAnnotation(Id.class))
            if (member instanceof Method)
               return ((Method<?, ?>) member).getReturnType();
            if (member instanceof Field)
               return ((Field<?>) member).getType();
      return null;

    public static boolean isNumberIdType(JavaClass<?> entity)
      return getIdType(entity) instanceof Number;

I see the code and I don’t see a simple form to do it.
How I do that with Roaster Type<?>?

I thought to do that in Types (roaster util):

   public static boolean isNumber(final String type)
      if (isBasicType(type))
         if (isPrimitive(type))
            return Arrays.asList("int", "long", "float", "double",
         return Arrays.asList("Boolean", "Byte", "Double", "Float",
"Integer", "Long", "Short").contains(
      return false;

But, it isn’t good.
Daniel Cunha (soro) <http://www.cejug.net>
Blog: http://www.danielsoro.com.br
Twitter: https://twitter.com/dvlc_
GitHub: https://github.com/danielsoro
LinkedIn:  http://www.linkedin.com/in/danielvlcunha
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