/**
* Returns the persistent object of class $class with id $id.
*
* Checks if the object of $class with $id has already been loaded. If this
* is the case, the existing identity is returned. Otherwise the desired
* object is loaded from the database and its identity is recorded for
* later uses.
*
* @throws ezcPersistentObjectException
* if the object is not available.
* @throws ezcPersistentObjectException
* if there is no such persistent $class.
*
* @param string $class
* @param mixed $id
*
* @return ezcPersistentObject
*/
public function load($class, $id)
{
$idMap = $this->properties['identityMap'];
if (!$this->properties['options']->refetch) {
$identity = $idMap->getIdentity($class, $id);
if ($identity !== null) {
return $identity;
}
}
$identity = $this->session->load($class, $id);
$idMap->setIdentity($identity);
return $identity;
}
