/**
* Fetches a frozen object from the object storage and thaws it.
*
* @param string $id The ID of the object that is to be fetched.
*
* @return object
*/
public function fetch($id)
{
// Bail out if a non-string was passed.
if (!is_string($id)) {
throw Object_Freezer_Util::getInvalidArgumentException(1, 'string');
}
// Try to retrieve object from the object cache.
$object = $this->cache->get($id);
if (!$object) {
// Retrieve object from the object storage.
$frozenObject = $this->doFetch($id);
$this->fetchArray($frozenObject['objects'][$id]['state']);
$object = $this->freezer->thaw($frozenObject);
// Put object into the object cache.
$this->cache->put($id, $object);
}
return $object;
}
/**
* @covers Object_Freezer_Cache::get
*/
public function testGetReturnsFalseForNotExistingId()
{
$cache = new Object_Freezer_Cache();
$this->assertFalse($cache->get('foo'));
}