Interface ProgressPipe<P,​D_OUT,​F_OUT,​P_OUT>

  • Type Parameters:
    P - Type of the progress input
    D_OUT - Type of the output from this pipe
    F_OUT - Type of the failure output from this pipe
    P_OUT - Type of the progress output from this pipe

    public interface ProgressPipe<P,​D_OUT,​F_OUT,​P_OUT>
    A pipe invoked when the Promise publishes intermediate results while it is still in the state Promise.State.PENDING. Pipes allow to start a new Deferred and any state change or update invoked on the new Deferred is piped to the outer Promise. This allows to chain asynchronous calls or convert a rejection into resolve or vice versa.
    See Also:
    Promise.pipe(DonePipe, FailPipe, ProgressPipe)