Object-oriented event notification system with listener registration of both interests and methods

  • US 6,424,354 B1
  • Filed: 04/01/1999
  • Issued: 07/23/2002
  • Est. Priority Date: 12/23/1992
  • Status: Expired due to Fees
First Claim
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1. A method for operating a computer-implemented event notification system for propagating, among a plurality of objects, events representing changes in the objects, the operating method comprising the steps of:

  • (a) creating, on behalf of a first object, connection information representing the first object'"'"'s interest in, and an associated object method for, receiving notification of a change to a second object;

    (b) registering the connection information with a connection object;

    (c) creating an event representing a change in the second object, responsive to the change in the second object; and

    (d) notifying the first object of the event by invoking the associated object method for receiving notification registered with the connection object only if the event information corresponds to an interest registered on behalf of the first object.

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