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: