Patent ID: 6711715
Filing Date: 2004-03-23
Classification: G06F

Abstract:
A system for storing and restoring display state data for a hierarchical data structure, the system comprising:a sequence number generator operative to assign a first sequence number to a first display state change corresponding to a first display object; a storage module operative to store the first sequence number, the first display state change, and a first unique identifier of the first display object to a display state data module_and wherein the storage module is further operative to: compare the first sequence number to a second sequence number assigned to a second display state change corresponding to a second object; and store the second sequence number, the second display state change, and a second unique identifier of the second display object to the display state data module, in response to a determination that the second sequence number is greater than the first sequence number; and a restoration module operative to retrieve the first sequence number, the first display state change, and the first unique identifier of the first display object from the display state data module.