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Object Identity and Pointers

  1. The association of an object with a physical location in storage (as in C++) may change over time.
  2. There are several degrees of permanence of identity:
  3. In persistent extension of C++, object identifiers are implemented as ``persistent pointers'' which can be viewed as a pointer to an object in the database.

Osmar Zaiane
Mon Jun 29 17:30:13 PDT 1998