DataController

The base class for controllers which represent and control a data entity. Not meant to be used directly.

public class DataController: Controller 

Inheritance

Controller

Properties

state

The current state of the controller.

public internal(set) var state: State = .initialized 

callbackQueue

The queue which is used to perform callback calls. The default value is .main.

public var callbackQueue: DispatchQueue = .main

Methods

synchronize(_:)

Synchronize local data with remote.

public func synchronize(_ completion: ((_ error: Error?) -> Void)? = nil) 

Asynchronously fetches the latest version of the data from the servers. Once the remote fetch is completed, the completion block is called. If the updated data differ from the locally cached ones, the controller uses the callback methods (delegate, Combine publishers, etc.) to inform about the changes.

Parameters

• completion: Called when the controller has finished fetching remote data. If the data fetching fails, the error variable contains more details about the problem.