public static function setDefaultClass($identifier, $classname)
    {
        self::$_defaults[(string) $identifier] = $classname;
        unset(self::$_identifiers[(string) $identifier]);
    }
public static function setDefaultClass($identifier, $classname)
    {
        self::$_defaults[(string) $identifier] = $classname;
        unset(self::$_identifiers[(string) $identifier]);
    }
public static function setDefaultClass ( $ identifier , $ classname ) { self :: $ _defaults [ ( string ) $ identifier ] = $ classname ; unset ( self :: $ _identifiers [ ( string ) $ identifier ] ) ; }
Sets a default class.

@param string $identifier The identifier
@param string $classname  The default class name
Sets a default class .