Object identity and partitioning for user defined extents

摘要: The preferred embodiment of the present invention provides a system and method is provided that allows transparent flexible partitioning created objects in context schema mapping. mapper uses partition key values to facilitate objects. value for an object determines what belongs in. To most mapping partitioning, can be defined by developer attribute owning object, primary field or constant its class. When new owned are retrieved from their specified location determine which belongs. In also specifies corresponding column fields table store values. Preferably, stored as subset object. Because used uniquely identify information partially unique identifier