The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
Jun. 28, 1996
David Pugh, Bellevue, WA (US);
John Eugene Ball, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A method and system for dynamically modifying the behavior of a statically declared object that represents a simulated entity is provided. In a preferred embodiment, a clustering mechanism is provided that represents each simulated entity as a composite object, which is implemented as a composite object of component objects. The clustering mechanism allows the behavior of the composite object to be dynamically modified by adding interfaces to or removing interfaces from the composite object. Each interface, referred to as a role interface, includes methods that implement the behavior associated with a role that the composite object may assume. The clustering mechanism provides a negotiation procedure for attaching roles to the composite object. The component objects that comprise a composite object include a cluster object and zero or more role objects. The cluster object keeps track of the role objects currently within the composite object and exposes each of the role interfaces of each role object outside the composite object. The cluster object also contains functions for retrieving role interfaces and for invoking a function of an exposed role interface.