December 2015
Beginner to intermediate
195 pages
2h 52m
English
Content preview from Java Design PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CHAPTER 20
Chain of Responsibility Patterns
GoF Definition: Avoid coupling the sender of a request to its receiver by giving more than one object a chance to handle the request. Chain the receiving objects and pass the request along the chain until an object handles it.
Concept
Here we process a series of objects one by one (i.e., in a sequential manner). A source will initiate this processing. With this pattern, we constitute a chain where each of the processing objects can have some logic to handle a particular type of command object. After one’s processing is done, if anything is still pending, it can be forwarded to the next object in the ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.