October 1994
Intermediate to advanced
416 pages
10h 26m
English
book
Design Patterns: Elements of Reusable Object-Oriented Software
by Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides
Content preview from Design Patterns: Elements of Reusable Object-Oriented Software
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Chapter 5. Behavioral Patterns
Behavioral patterns are concerned with algorithms and the assignment of responsibilities between objects. Behavioral patterns describe not just patterns of objects or classes but also the patterns of communication between them. These patterns characterize complex control flow that’s difficult to follow at run-time. They shift your focus away from flow of control to let you concentrate just on the way objects are interconnected.
Behavioral class patterns use inheritance to distribute behavior between classes. This chapter includes two such patterns. Template Method (325) is the simpler and more common of the two. A template method is an abstract definition of an algorithm. It defines the algorithm step by step. ...
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