April 2004
Intermediate to advanced
480 pages
8h 29m
English
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Chapter 24. Command
The ordinary way to cause a method to execute is to call it. There may be times, though, when you cannot control the timing of or the context in which a method should execute. In these situations, you can encapsulate a method inside an object. By storing the information necessary for invoking a method in an object, you can pass the method as a parameter, allowing a client or service to determine when to invoke the method.
Fortunately, delegates in C# expressly support the ability to encapsulate a method in an object. However, this is a good example of how language support does not eliminate the role of patterns. Although C# provides direct support for the COMMAND pattern, developers must still understand how to employ the purpose ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.