DittoChangeObserver

public class DittoChangeObserver
extension DittoChangeObserver: Hashable
extension DittoChangeObserver: Equatable

A change observer invokes a change handler whenever results for its query change.

Create a change observer by calling DittoStore.registerChangeObserver().

  • The store this change observer is registered with.

    Declaration

    Swift

    public private(set) weak var store: DittoStore? { get }

  • The query string of the change observer (as passed when registering it).

    Declaration

    Swift

    public let queryString: String

  • The query arguments of the change observer (as passed when registering it).

    Declaration

    Swift

    public let queryArguments: Dictionary<String, Any?>?

  • Convenience property, returns true if the change obsever has been cancelled, otherwise returns false. Also, a change observer is considered cancelled if the owning Ditto object goes out of scope.

    Declaration

    Swift

    public var isCancelled: Bool { get }

  • Cancels the change observation and unregisters it from the owning store. No-op if it’s already cancelled or the owning Ditto object goes out of scope.

    Declaration

    Swift

    public func cancel()

Hashable

  • Declaration

    Swift

    public func hash(into hasher: inout Hasher)

Equatable

  • Declaration

    Swift

    public static func == (left: DittoChangeObserver, right: DittoChangeObserver) -> Bool