Interface DocHandleChangePayload<T>

The value after the change, scoped to this handle. For a root handle this is the whole document; for a sub-handle it is the value at the handle's path (i.e. equal to handle.doc()). undefined when the change removed the handle's scope.

The handle that changed

The patches representing the change, with paths relative to this handle's scope. For a root handle these are whole-document paths; for a sub-handle they are re-rooted at the handle's path.

Information about the change. Note: before/after here are whole-document snapshots, not scoped.

true when the change replaced or removed this handle's scope wholesale (a change at or above the scope boundary). Fine-grained consumers should reconcile from doc rather than apply patches in this case. Always false for a root handle.