private function _cleanCache()
    {
        if ($this->cache instanceof \Zend_Cache_Core) {
            $this->cache->clean();
            $this->addMessage($this->_('Cache cleaned'));
        }
    }
private function _cleanCache()
    {
        if ($this->cache instanceof \Zend_Cache_Core) {
            $this->cache->clean();
            $this->addMessage($this->_('Cache cleaned'));
        }
    }
private function _cleanCache ( ) { if ( $ this -> cache instanceof \ Zend_Cache_Core ) { $ this -> cache -> clean ( ) ; $ this -> addMessage ( $ this -> _ ( 'Cache cleaned' ) ) ; } }
Make sure the cache is cleaned.

As a lot of cache depends on the database, it is best to clean the cache
now since import tables might have changed.

@return void
Make sure the cache is cleaned .