protected void putObjectId(String name, ObjectId oid) {
_put(OID, name);
// according to spec, values should be stored big endian
_buf.writeIntBE(oid._time());
_buf.writeIntBE(oid._machine());
_buf.writeIntBE(oid._inc());
}
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());
}