DatumObserver<T extends DatumEntityBase> class abstract

An observer class to monitor operations within DatumManager.

Implement this class and register it via Datum.addObserver() (for global observation) or during Datum.register() (for entity-specific observation) to receive notifications about key operations.

Implementers

Constructors

DatumObserver()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onConflictDetected(T local, T remote, DatumConflictContext context) → void
Called when a conflict is detected between local and remote data.
onConflictResolved(DatumConflictResolution<T> resolution) → void
Called after a conflict has been resolved.
onCreateEnd(T item) → void
Called at the end of a successful create operation.
onCreateStart(T item) → void
Called at the beginning of a create operation.
onDeleteEnd(String id, {required bool success}) → void
Called at the end of a delete operation.
onDeleteStart(String id) → void
Called at the beginning of a delete operation.
onSyncEnd(DatumSyncResult<DatumEntityBase> result) → void
Called when a synchronization cycle has finished.
onSyncStart() → void
Called when a synchronization cycle is about to start.
onUpdateEnd(T item) → void
Called at the end of a successful update operation.
onUpdateStart(T item) → void
Called at the beginning of an update operation.
onUserSwitchEnd(DatumUserSwitchResult result) → void
Called when a user switch operation has finished.
onUserSwitchStart(String? oldUserId, String newUserId, UserSwitchStrategy strategy) → void
Called when a user switch operation is about to start.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited