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Book Chapter

Observer Design Pattern

  • McDonough J
Apress, (2017), 155-171
DOI: 10.1007/978-1-4842-2838-8_13
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Abstract

Intent Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. Encapsulate the core (or common or engine) components in a Subject abstraction, and the variable (or optional or user interface) components in an Observer hierarchy. The "View" part of Model-View-Controller.

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APA

McDonough, J. E. (2017). Observer Design Pattern. In Object-Oriented Design with ABAP (pp. 155–171). Apress. https://doi.org/10.1007/978-1-4842-2838-8_13

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