Readonly collectionsA list of all of the known collections.
Readonly deletionsA list of the indexes in the list of previously known about collections at which collections have been removed.
Readonly insertionsA list of the indexes in the list of currently known about collections at which new collections have been inserted.
Readonly isIndicates whether or not this is the first event to be delivered when observing collections in the store.
Readonly movesA list of the tuples that provides the indexes, in relation to the list of previously known about collections, that already known about collections have moved from and the indexes, in relation to the list of currently known about collections, that the collections have moved to.
Readonly oldA list of all of the known collections at the time the previous event was delivered.
Readonly updatesA list of the indexes in the list of currently known about collections at which pre-existing collections have been updated.
Provides information about the changes that have occurred in relation to an event delivered when observing the collections in a Store.
It contains information about the collections that are known about as well as the collections that were previously known about in the previous event, along with information about what collections have been inserted, deleted, updated, or moved since the last event.