private function readMapping($className)
    {
        $file = $this->getMappingFile($className);

        return $file ? $this->parse($file) : null;
    }
private function readMapping($className)
    {
        $file = $this->getMappingFile($className);

        return $file ? $this->parse($file) : null;
    }
private function readMapping ( $ className ) { $ file = $ this -> getMappingFile ( $ className ) ; return $ file ? $ this -> parse ( $ file ) : null ; }
Reads the configuration for the given classname.

@param string $className
@return mixed|null
Reads the configuration for the given classname .