public static boolean
supportedType(int type) {
	Type.check(type);
	return (type == Type.PTR || type == Type.CNAME || type == Type.DNAME ||
		type == Type.A || type == Type.AAAA || type == Type.NS);
}
Indicates whether generation is supported for this type.
@throws InvalidTypeException The type is out of range.
src/main/java/core/org/xbill/DNS/Generator.java