GenericOperation

open class GenericOperation<T> : AsyncOperation

Represents AsyncOperation with Generic result

  • Operation Result WARNING: Do not modify this value outside of GenericOperation functions

    Declaration

    Swift

    public var result: Result<T, Error>? { get set }

  • Creates OperationQueue and starts operation

    Declaration

    Swift

    public func start(completion: @escaping (Result<T, Error>) -> Void)

    Parameters

    completion

    Completion callback

  • Creates OperationQueue and starts operation

    Declaration

    Swift

    public func start(completion: @escaping (T?, Error?) -> Void)

    Parameters

    completion

    Completion callback

  • Creates queue, starts operation, waits for result, returns result

    Declaration

    Swift

    public func startSync(timeout: TimeInterval? = nil) -> Result<T, Error>

    Parameters

    timeout

    Operation timeout

    Return Value

    Operation Result

Dependency-related operations

  • Finds first dependency with Result of correct type and returns its result, if operation has succeeded

    Throws

    GenericOperationError.missingDependencies, if no dependency with correct type was found GenericOperationError.dependencyFailed, if dependency has failed

    Declaration

    Swift

    func findDependencyResult<T>() throws -> T

    Return Value

    Dependency Result

  • Finds dependency error

    Declaration

    Swift

    func findDependencyError() -> Error?

    Return Value

    Dependency error