protected void putDBPointer(String name, String ns, ObjectId oid) {
_put(REF, name);
_putValueString(ns);
_buf.writeInt(oid._time());
_buf.writeInt(oid._machine());
_buf.writeInt(oid._inc());
}
protected void putDBRef(String name, DBRefBase ref) {
_put(OBJECT, name);
final int sizePos = _buf.getPosition();
_buf.writeInt(0);
_putObjectField("$ref", ref.getRef());
_putObjectField("$id", ref.getId());
_buf.write(EOO);
_buf.writeInt(sizePos, _buf.getPosition() - sizePos);
}