On Nov 21, 2007 2:05 PM, Simeon F. Willbanks <simeon@xxxxxxxxxxx> wrote: > 3. Object Oriented principles I see that you tried to implement Singleton pattern in the DB class, but you have a mistake. $dbConnection attribute is not a static member, so every time you call the constructor $dbConnection won't be initialized, so your code will always initialize this attribute. There is something that i always wonder about Singleton pattern in PHP, do you really have a benefit using this pattern in PHP? The idea behind this pattern is that only one instance of the class is created, it works great in Java because all requests are processed inside a JVM and this instance created will really be the only one defined. Because in PHP every request has its own environment, you will have several instances of this class per request processed. > 4. Strategy Design Pattern > - Interface used for column attribute parsing I've checked the code in MySQLToXML.phps and i see a lot of ParseDatabaseColumnAttributeXXX classes that implements ParseDatabaseColumnAttribute interface. I think that those classes should be methods of a DatabaseColumnAttributeParser instead of defining so many classes. Also the names of those classes suggest me that they are methods not objects. -- Saludos Oscar -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
