Perl - Creating your own Classes

Perl module P213

Creating your own Classes

Exercises, examples and other material relating to training module P213. This topic is presented on public course Perl for Larger Projects

Perl for Larger Projects - training course - Objects, huge data, SQL databases, XML, efficiency and other topics.

Perl for Larger Projects - Objects, huge data, SQL databases, XML, efficiency and other topics. This advanced course takes the Perl programmer through ...

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Custom course - training course - Custom course

Custom course - Custom course Custom course This is a custom course that will be tailored to your trainee's needs and based on their current knowledge ...

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When to bless a Perl variable

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When should I use OO techniques?

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Introduction to Object Oriented Programming

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Object Oriented Perl - First Steps

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Object Oriented Programming in Perl - Course

Perl Review (module P251) Subroutines in Perl (module P209) More than Simple Lists and Hashes! (module P217) Object Orientation: Individual Objects (module ...

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In Perl, you can define a class of objects in a module. All the standard Object Oriented facilities are available, and we start with constructors, destructors, instances and accessor methods.

This topic is presented on public course Perl for Larger Projects

Examples from our training material

3cl	Object Orientation - 2 classes and polymorphism
bd1.pm	A simple class, using a scalar to store object information
bd2.pm	A simple class, using a list to store information about each object
bd3.pm	A simple class, storing each object in a hash
book.pm	A simple class with a constructor and 2 access methods
ce.pm	Object interface to call events
commute.pm	commute.pm - used in factory demo
journey	Call to factory class. See ramble.pm and commute.pm
peeps.pm	Definition of two classes and polymorphism
ramble.pm	A class that includes a factory method
roar	Sample program to use room.pm
room.pm	A simple class which uses a blessed hash
scemail	quick check of email address format
spammer	Using global matching to extract all matches
thing.pm	Generic class for use during exercises
ub2	A test program to use the "book" class
ub3	Another test program to use the book class
ubany.pl	Test program for ub1 ub2 and ub3 classes
usebook	Sample application, constructs and uses book objects
wheretogo	Example that uses commute.pm and ramble.pm

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Resume -- using a class.
Background to instance variables.
Variables, addresses of variables, contents of variables.
A first class.
Structure of the class file.
The new method.
Other methods in the class.
Storing information using complex structures.
Writing applications that are independent of the class internals.
Using a scalar to store information within a class.
Using a list to store information within a class.
Using a hash to store information within a class.
Further capabilities of a hash.
The ability to provide generic set and get methods.
AUTOLOAD.
Summary.

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