private function getClassMetadata()
    {
        if (null !== $this->metadata) {
            return $this->metadata;
        }

        return $this->metadata = $this->manager->getClassMetadata($this->getSource()->getClass());
    }
private function getClassMetadata()
    {
        if (null !== $this->metadata) {
            return $this->metadata;
        }

        return $this->metadata = $this->manager->getClassMetadata($this->getSource()->getClass());
    }
private function getClassMetadata ( ) { if ( null !== $ this -> metadata ) { return $ this -> metadata ; } return $ this -> metadata = $ this -> manager -> getClassMetadata ( $ this -> getSource ( ) -> getClass ( ) ) ; }
Returns the class metadata.

@return ClassMetadata
Returns the class metadata .