Storage and Retrieval of RDF Documents Using an Object-Oriented DBMS

The Resource Description Framework (RDF) is a foundation for processing metadata, which provides interoperability between applications that exchange machine-understandable information on the World Wide Web (WWW). Because users of RDF can use any possible syntax to encode the data described in RDF and the highly flexible hierarchical structure and machine-independent characteristic that the XML can provide, these reasons make XML become the most popular way to store and transport RDF documents. The support in the storage and retrieval of XML documents (and RDF documents therefore) into persistent data storage efficiently is becoming a key issue in current computer technology. In this paper, we proposed a storage processing technique, including a set of OODB schema and a decomposing method, to store an incoming RDF/XML document to the underlying database by taking advantage of the object-attribute-value tripe structure of the RDF directly without the help of schema information. Furthermore, we propose a retrieval processing technique by choosing the SquishQL as our query language to construct the query statements and build the query engine for processing and executing the query requests. We will introduce how we implement the OODB schema and the decomposing method involved in our proposed storage processing technique, and briefly described how the SquishQL query language could be used to state the query requests