OODB中连接视图的物化和增量保持技术

Materialization and Incremental Update Technique of Joined View in OODB

提出了一个实现 OODB中连接视图物化和增量保持的算法 .基本思想是扩充了文献 [1]中的 OODB模型 ,使其便利于连接视图的物化和增量保持 ,为每个类中的对象增加一个视图标识 ,用来标记该对象是否在相应视图中 ,以减少连接运算 .最后 。

A series of algorithms to facilitate incremental update of joined view within OODB are presented. For this purpose, the OODB model is extended to include two categories of classes, namely base classes and brother classes; view identifier for each object of class is set up to indicate whether it is in the view and reduce the frequency of linking operations.