Querying Data
-
These objects are returned when using
See morefind
-like functionality onDittoCollection
s. They allow chaining of further query-related functions to do things like add a limit to the number of documents you want returned or specify how you want the documents to be sorted and ordered. You can either callexec
on the object to get an array ofDittoDocument
s as an immediate return value, or you can establish either a live query or a subscription, which both work over time. A live query, established by callingobserve
, will notify you every time there’s an update to a document that matches the query you provided in the precedingfind
-like call. A subscription, established by callingsubscribe
, will act as a signal to other peers that the device connects to that you would like to receive updates from them about documents that match the query you provided in the precedingfind
-like call. Callingobserve
will generate both a subscription and a live query at the same time. If you’d like to only observe local changes then you can callobserveLocal
. Update and remove functionality is also exposed through this object.Declaration
Swift
public class DittoPendingCursorOperation
-
These objects are returned when using
See morefindByID
functionality onDittoCollection
s. You can either callexec
on the object to get an immediate return value, or you can establish either a live query or a subscription, which both work over time. A live query, established by callingobserve
, will notify you every time there’s an update to the document with the ID you provided in the precedingfindByID
call. A subscription, established by callingsubscribe
, will act as a signal to other peers that you would like to receive updates from them about the document with the ID you provided in the precedingfindByID
call. Callingobserve
will generate both a subscription and a live query at the same time. If you’d like to only observe local changes then you can callobserveLocal
. Update and remove functionality is also exposed through this object.Declaration
Swift
public class DittoPendingIDSpecificOperation
-
Describes the direction when sorting a query.
See moreDeclaration
Swift
public enum DittoSortDirection