摘要：There are countless animation movies available nowadays throughout the Internet. Rich media (including Flash and PowerPoint) presentations are increasingly gaining widespread usage, particularly in the domains of e-learning and digital entertainment. In order to allow these animation movies to be queried efficiently, in this article we present OXML - an Object XML database for storing and retrieving animation movies. After converting the movies into XML format, OXML stores the resultant XML data into a native object-oriented database. To enhance the retrieval of such XML objects, an indexing technique known as Structural Join Index Hierarchy (SJIH) is then applied to the OXML database. A detailed cost model for query execution through SJIH is developed. Our experimental studies on accessing Flash movies using SJIH has demonstrated performance advantageous when compared with other indexing techniques.
