News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

PHPMaster.com:
An Intro to Virtual Proxies, Part 1
April 19, 2012 @ 08:52:44

On PHPMaster.com today there's a new tutorial from Alejandro Gervasio about using virtual proxies in your application - a method in development that provides a layer of abstraction on top of domain objects and makes it more efficient to work with (and lazy load) them.

Often referenced by a few other fancy names, the substitute is generically called a virtual proxy, a sort of stand-in that exploits the neatness of Polymorphism and interacts with the actual domain objects. Proxies aren't new to PHP. Doctrine and Zend Framework 2.x make use of them, although with different aims. On behalf of a didactic cause, however, it would be pretty instructive to implement some custom proxy classes and use them for lazy-loading a few basic aggregates from the database, this way illustrating how virtual proxies do their stuff under the hood.

He starts off by setting up a domain model for a "Post" and "Author" - a typical blog example.Based on the definition of these classes, he creates a mapper class to generate Author objects and an "AuthorProxy" class that uses a "loadAuthor" method to only load in the author's details when a property is requested. He gives a bit more code showing it in action and the difference between using the normal Author and AuthorProxy class.

0 comments voice your opinion now!
virtual proxy tutorial blog author post interface


blog comments powered by Disqus

Similar Posts

NetTuts.com: Letís TDD a Simple App in PHP

Community News: Day Camp 4 Developers - Programming PHP Securely

Lorna Mitchell: Do Open Source with Git and Github

Job Posting: Dent Zone Companies Seeks Web Application Programmer (Irving, TX)

Alvaro Videla's Blog: Erlang as Session Storage for PHP


Community Events

Don't see your event here?
Let us know!


voicesoftheelephpant wordpress language framework development laravel5 podcast community unittest opinion laravel library release interview psr7 introduction extension series conference api

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework