March 2005
Intermediate to advanced
1064 pages
34h 51m
English
Content preview from Pro Perl
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CHAPTER 19Object-Oriented Perl
Objects are a way to hide complexity behind an opaque value. Concealed behind the interface it presents to us, the value holds not only data, but also all the code necessary to access, manipulate, and store it. All objects belong to an object class, and the class defines what kind of object they are. The code that implements an object's features also belongs to the class, and the objects—sometimes called object instances—are simply values that belong to a given class. They "know" what kind of object they are, and therefore which class the subroutines that can be used through them come from. In Perl, an object class is just a package, and an object instance is just a reference that knows its class and references ...
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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.