OptionalauthorWho authored this change. Recorded on the commit (ICommit.getAuthor).
OptionalautoSelect the movables the operation leaves the user working on, once it completes.
OptionalautoSelect what the operation acted on when it is undone or redone: an undo lands on the selection it began with, a redo where it left the user.
OptionaldescriptionA human description.
OptionalexpectedOptimistic concurrency guard. If set, the operation only begins if the store's current commit id matches; otherwise a TransactionConflictError is thrown.
OptionalmetaStored with the commit (ICommit.getMeta) — for what a view of the history wants to know beyond the description, such as the command that made the change.
OptionalreadDeclares the operation read-only: any state update within it throws.
Writes are tracked automatically — a batch that performs no updates never creates a commit (no new commit id, no events, no undo entry) whether or not this is set. The flag is purely an assertion for callers that want the guarantee enforced. Nested transactions inherit it; they cannot opt back out.
Options for an operation on movables that can select what it acted on.