void
rdataFromString(Tokenizer st, Name origin) throws IOException {
	next = st.getName(origin);
	bitmap = new BitSet();
	while (true) {
		Tokenizer.Token t = st.get();
		if (!t.isString())
			break;
		int typecode = Type.value(t.value, true);
		if (typecode <= 0 || typecode > 128)
			throw st.exception("Invalid type: " + t.value);
		bitmap.set(typecode);
	}
	st.unget();
}
Creates an NXT Record from the given data
@param next The following name in an ordered list of the zone
@param bitmap The set of type for which records exist at this name
src/main/java/core/org/xbill/DNS/NXTRecord.java