Object models adopted in the object oriented software development reflect complex relations that exist between various entities in the real world. On the other hand, directory models adopted in directory service technologies map various relations into tree structures. Therefore, developing directory services by object oriented languages require writing lengthy procedures that bridge the gaps between object models and directory models. To overcome this drawback, in this paper, we propose a new technology named Object-Directory Mapping. We also present a Java based framework S2Directory to prove the effectiveness of the concept of Object-Directory Mapping. Implementation details are also given together with new dynamic implementation injection techniques.