public function isEntity( &$entity = null )
    {
        if( isset( $this->data['entity'] ) ) {
            $entity = $this->data['entity'];
            return true;
        }
        $entity = null;
        return false;
    }
public function isEntity( &$entity = null )
    {
        if( isset( $this->data['entity'] ) ) {
            $entity = $this->data['entity'];
            return true;
        }
        $entity = null;
        return false;
    }
public function isEntity ( & $ entity = null ) { if ( isset ( $ this -> data [ 'entity' ] ) ) { $ entity = $ this -> data [ 'entity' ] ; return true ; } $ entity = null ; return false ; }
Does this DataType reference a Entity?
@param string $entityName
@return bool
Does this DataType reference a Entity?