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Encapsulation

  • John Beidler
Part of the Undergraduate Texts in Computer Science book series (UTCS)

Abstract

An important key to software productivity is software reuse. With respect to data structures, an important key to software reuse is the encapsulation of classes of data structures in ways that encourage their reuse. The most fundamental way to encourage the reuse of data structure components is to encapsulate the representations of data structures using Ada’s object-oriented programming and software packaging capabilities. Regardless of the packaging method, a client will have to construct an interface between the data structure’s encapsulation and the client’s application. For example, when a structure is encapsulated using Ada’s object-oriented capabilities, the client constructs an interface using object-oriented type extension. A type extension example appears in Section 2.5. When a data structure is encapsulated in a generic package, a client instantiates the generic package to construct the interface between the package’s data structure and the client’s software. A generic instantiation example appears in Section 2.3. Both methods provide safe, reliable, efficient, and robust encapsulation.

Keywords

Software Developer Object Type Control Type Generic Package Access Type 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • John Beidler
    • 1
  1. 1.Department of Computing SciencesUniversity of ScrantonScrantonUSA

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