December 2015
Beginner to intermediate
195 pages
2h 52m
English
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CHAPTER 14
State Patterns
GoF Definition: Allow an object to alter its behavior when its internal state changes. The object will appear to change its class.
Concept
The concept is best described by the examples that follow.
Real-Life Example
Consider a network connection for the moment. Here the object (that is responsible for communication) can be in various states (e.g., already a connection is established, a connection is closed, or the object is listening through the connection). We can also think of a traffic signal in this context.
Computer World Example
The above example is applicable in the computer world also. Let us look at an additional ...
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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.