FIRSnapshotMetadata
@interface FIRSnapshotMetadata : NSObject
Metadata about a snapshot, describing the state of the snapshot.
-
Undocumented
Declaration
Objective-C
- (instancetype)init NS_UNAVAILABLE;
-
Returns YES if the snapshot contains the result of local writes (e.g. set() or update() calls) that have not yet been committed to the backend. If your listener has opted into metadata updates (via
includeMetadataChanges:YES
) you will receive another snapshot withhasPendingWrites
equal to NO once the writes have been committed to the backend.Declaration
Objective-C
@property (readonly, getter=hasPendingWrites, assign, nonatomic) BOOL pendingWrites;
-
Returns YES if the snapshot was created from cached data rather than guaranteed up-to-date server data. If your listener has opted into metadata updates (via
includeMetadataChanges:YES
) you will receive another snapshot withisFromCache
equal to NO once the client has received up-to-date data from the backend.Declaration
Objective-C
@property (readonly, getter=isFromCache, assign, nonatomic) BOOL fromCache;