/**
* {@inheritdoc}
*/
public function getMultiple(array $keys)
{
$values = array();
$load = array();
foreach ($keys as $key) {
// Check if we have a value in the cache.
if (isset($this->cache[$key])) {
$values[$key] = $this->cache[$key];
} elseif (!array_key_exists($key, $this->cache)) {
$load[] = $key;
}
}
if ($load) {
$loaded_values = $this->keyValueStore->getMultiple($load);
foreach ($load as $key) {
// If we find a value, even one that is NULL, add it to the cache and
// return it.
if (isset($loaded_values[$key]) || array_key_exists($key, $loaded_values)) {
$values[$key] = $loaded_values[$key];
$this->cache[$key] = $loaded_values[$key];
} else {
$this->cache[$key] = NULL;
}
}
}
return $values;
}
/**
* {@inheritdoc}
*/
public function doLoadMultiple(array $ids = NULL)
{
if (empty($ids)) {
$entities = $this->keyValueStore->getAll();
} else {
$entities = $this->keyValueStore->getMultiple($ids);
}
return $this->mapFromStorageRecords($entities);
}