private function persistForwardRelationship(Relationship $relationship, $key, $value)
{
// Set the local relationship
$this->getDriver()->debugLog('@Setting forward relationship: ' . $key);
if (RelationshipType::isMultiIndex($relationship->getRelationshipType())) {
$this->setMultiValueRelationship($key, $value);
} else {
$this->setSingleValueRelationship($key, $value);
}
}