Integrating object-oriented programming and protected objects in Ada 95

  • Authors:
  • A. J. Wellings;B. Johnson;B. Sanden;J. Kienzle;T. Wolf;S. Michell

  • Affiliations:
  • University of York;Colorado Technical University;Colorado Technical University;Swiss Federal Institute of Technology in Lausanne;Swiss Federal Institute of Technology in Lausanne;Maurya Software

  • Venue:
  • ACM SIGAda Ada Letters
  • Year:
  • 2002

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Abstract

Integrating concurrent and object-oriented programming has been an active research topic since the late 1980's. There is now a plethora of methods for achieving this integration. The majority of approaches have taken a sequential object-oriented language and made it concurrent. A few approaches have taken a concurrent language and made it object-oriented. The most important of this latter class is the Ada 95 language, which is an extension to the object-based concurrent programming language Ada 83. Arguably, Ada 95 does not fully integrate its models of concurrency and object-oriented programming. For example, neither tasks nor protected objects are extensible. This article discusses ways in which protected objects can be made more extensible.