public function refresh()
{
$this->cashStore->deleteAll();
$all = $this->dataSource->getAll();
if ($all instanceof \Traversable or is_array($all)) {
foreach ($all as $item) {
$this->cashStore->create($item, true);
}
} else {
throw new DataStoreException("Not return data by DataSource");
}
}
/**
* {@inheritdoc}
*
* {@inheritdoc}
*/
public function deleteAll()
{
$this->preDeleteAll();
$result = $this->dataStore->deleteAll();
return $this->postDeleteAll($result);
}