Data processing: database and file management or data structures – Data integrity – Checking consistency
Reexamination Certificate
2011-06-28
2011-06-28
Hicks, Michael (Department: 2165)
Data processing: database and file management or data structures
Data integrity
Checking consistency
Reexamination Certificate
active
07970744
ABSTRACT:
According to an aspect of the present invention, information indicating the list of referrer documents referring to a referred document, is maintained. Thus, when the document identifier (name and directory location of the document) changes, the list of referrer documents that need to be changed can be easily identified. In an embodiment, the administrators of the referrer document are notified (e.g., by an automatic email) of the change of the document identifier of the referred document. According to another aspect of the present invention, a first mapping of the Uniform Resource Locator (URL) of each web accessible page/document to a virtual link is maintained in a web server. The content server maintains a second mapping of the virtual link to the document identifier. Thus, when the document identifier changes, only the second map in the content server needs to be updated for continued access of the content.
REFERENCES:
patent: 6681369 (2004-01-01), Meunier et al.
Evans et al., “A Web-Based Migration Protocol Using WebDAV”, WWW '02, pp. 263-271, 2002, ACM.
Hugh C. Davis, “Referential Integrity of Links in Open Hypermedia Systems”, Multicosm Ltd. and The Multimedia Research Group, pp. 207-216, The Department of Electronics an Computer Science, The University of Southampton, Southampton, SO 17 1BJ, UK.
Pentti A. Honkanen, The Integrity Problem, and What Can Be Done About It Usingtoday's Dbmss From the Database Fall', pp. 21-27, Georgia State University 1989.
Keith Shafer, Stuart Weibel, Erik Jul, Jon Fausey, “Introduction to Persistent Uniform Resource Locators”, pp. 01-08, Downloaded Sep. 17, 2010.
Hicks Michael
Oracle International Corporation
Thappeta Narendra Reddy
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