01-20-2008, 12:49 AM
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#1 (permalink)
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The Frequenter
Join Date: Dec 2007
Location: Bucharest, Romania
Posts: 438
Thanks: 3
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Registry pattern
Heard about it? Used it? I've already implemented it and it's a life saver.  I bet there are many more interesting patterns to follow, but I really needed this one, so I could stop passing an object over and over again through the constructors and such and I didn't even know it exists :P
My implementation:
PHP Code:
final class Registry
{
/**
* The internal class library
*
* @var array
*/
private static $library;
/**
* No need for a constructor.
*/
private final function __construct() { }
/**
* Returns an object reference from the library
*
* @param string $name
* @return object|null
*/
public static function &get( $name = null )
{
self::_init();
if( empty( $name ) )
{
return null;
}
if( array_key_exists( $name, self::$library ) )
{
return self::$library[ $name ];
}
}
/**
* Sets a reference to an object in the internal library
*
* @param string $name
* @param object $obj
*/
public static function set( $name = null, $obj )
{
self::_init();
if( empty( $name ) )
{
return;
}
self::$library[ $name ] = $obj;
}
/**
* Initialize the library
*/
protected static function _init()
{
if( empty( self::$library ) )
{
self::$library = array();
}
}
}
And by the way, "Design patterns" from Wordware is well worth reading. An excelent object oriented reference book.
__________________
I have optimistic thoughts, even though sometimes (if not always) life's a bitch.
Last edited by xenon : 05-05-2008 at 10:11 PM.
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