[UPHPU] Class and Object Storage
giboney at giboneydesigns.com
Sat Feb 16 22:59:12 MST 2008
Is there a way to use singleton  classes with webpages?
Basically I want to be able to have classes that are shared for multiple
users, so that the class and objects don't have to be recreated.
They way I understand things now, are that all of your classes are
destroyed (or at least unavailable) after the web server sends the page.
I have used memcached , but it adds a lot of code for classes all the
singleton classes that I need. Plus, not all hosts support memcached,
which makes the program less portable.
For those of you that don't think it is necessary, or that want more
details, read on.
I have a GUID  class that produces GUIDs for me. This class is
set up to only allow one person through at a time (at least I hope), so
that the same GUID will never be replicated. I only can have one object
of this class in existence at a time or else the the same GUID could be
created if both were hit at the same time.
Why a GUID? A GUID is necessary to be able to call things from the
cache. Auto_increment on a dbms uses the same set of values for each
table. That number cannot be used to reference objects in a cache, so
something more detailed needs to be used.
Why a cache? A cache allows me to not hit the database as often.
This speeds up the web server.
Why OO ? Because it is clean.
 Singleton: http://en.wikipedia.org/wiki/Singleton_pattern
 Memcached: http://www.danga.com/memcached/
 GUID: http://en.wikipedia.org/wiki/GUID
 OO: http://en.wikipedia.org/wiki/Object-oriented_programming
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