private static function _init()
    {
        if (!self::$_isInitialized) {
            self::$_sources = array();

            // Get list of default connection string sources.
            $default = ConnectionStringSource::getDefaultSources();
            foreach ($default as $name => $provider) {
                self::$_sources[$name] = $provider;
            }

            self::$_isInitialized = true;
        }
    }
private static function _init()
    {
        if (!self::$_isInitialized) {
            self::$_sources = array();

            // Get list of default connection string sources.
            $default = ConnectionStringSource::getDefaultSources();
            foreach ($default as $name => $provider) {
                self::$_sources[$name] = $provider;
            }

            self::$_isInitialized = true;
        }
    }
private static function _init ( ) { if ( ! self :: $ _isInitialized ) { self :: $ _sources = array ( ) ; // Get list of default connection string sources. $ default = ConnectionStringSource :: getDefaultSources ( ) ; foreach ( $ default as $ name => $ provider ) { self :: $ _sources [ $ name ] = $ provider ; } self :: $ _isInitialized = true ; } }
Initializes the connection string source providers.

@return void
Initializes the connection string source providers .