/**
* Finds a document by its identifier.
*
* @param $id The identifier.
* @param int $lockMode
* @param int $lockVersion
* @return object The document.
*/
public function find($id, $lockMode = LockMode::NONE, $lockVersion = null)
{
// Check identity map first
if ($document = $this->uow->tryGetById($id, $this->class->rootDocumentName)) {
if ($lockMode != LockMode::NONE) {
$this->dm->lock($document, $lockMode, $lockVersion);
}
return $document;
// Hit!
}
$id = array('_id' => $id);
if ($lockMode == LockMode::NONE) {
return $this->uow->getDocumentPersister($this->documentName)->load($id);
} else {
if ($lockMode == LockMode::OPTIMISTIC) {
if (!$this->class->isVersioned) {
throw LockException::notVersioned($this->documentName);
}
$document = $this->uow->getDocumentPersister($this->documentName)->load($id);
$this->uow->lock($document, $lockMode, $lockVersion);
return $document;
} else {
return $this->uow->getDocumentPersister($this->documentName)->load($id, null, array(), $lockMode);
}
}
}
