Efficient and Flexible Key/Value Datastore System using Java Reflection

Abstract

Although relational database systems have been widely used for managing such data, relational database systems have the limitations in searching and storing the relationships among rapidly growing data in cloud computing environments. Key/Value databases are becoming important since massive data can be handled by Key/Value databases more efficiently rather than conventional relational databases in cloud computing environments since a Key/Value database has a high scalability for its simple structures and it is easy to store objects directly in the database. In this paper, we suggest the flexible Key/Value datastore system, Contrabase, which can support storing POJO(Plain Old Java Object) using Java reflection. In addition, we suggest a platform-independent monitoring tool for our Key/Value datastore system. The contribution of the proposed system can be summarized as follows. In first, POJO can be directly stored in table using Java reflection without any additional operation. Secondly, inheritance and polymorphism can be supported by storing POJO. This means that our proposed system can be configured at a little cost and the amount of work for database operations can be reduced efficiently.