/**
* Forwards call to given database.
*
* @param GlueDB_Database $db
* @param integer $style
*
* @return string
*/
protected function compile(GlueDB_Database $db, $style)
{
// Forwards call to database :
return $db->compile_builder_rowlist($this, $style);
}
/**
* Forwards call to given database.
*
* @param GlueDB_Database $db
* @param integer $style
*
* @return string
*/
protected function compile(GlueDB_Database $db, $style)
{
// Forwards call to database :
return $db->compile_column($this, $style);
}
/**
* Forwards call to given database.
*
* @param GlueDB_Database $db
* @param integer $style
*
* @return string
*/
function compile(GlueDB_Database $db, $style)
{
// Forwards call to database :
return $db->compile_aliased($this, $style);
}
/**
* Returns the database object identified by $db_name.
*
* Subsequent calls to this function with the same parameter will return the same database
* instance, instead of creating a new one.
*
* @param string $db_name
*
* @return GlueDB_Database
*/
public static function db($db_name = GlueDB_Database::DEFAULTDB)
{
return GlueDB_Database::get($db_name);
}
/**
* Returns a new database instance. Throws class not found exception if
* no class is defined for given database.
*
* @param string $name
*
* @return GlueDB_Database
*/
protected static function create($name)
{
// Class name :
$class = 'GlueDB_Database_' . ucfirst($name);
// Unlock constructor, create instance and relock constructor :
self::$constuctor_locked = false;
$instance = new $class($name);
self::$constuctor_locked = true;
return $instance;
}