OnErrorResumeStreamTransformer<S> class

Intercepts error events and switches to a recovery stream created by the provided recoveryFn Function.

The OnErrorResumeStreamTransformer intercepts an onError notification from the source Stream. Instead of passing the error through to any listeners, it replaces it with another Stream of items created by the recoveryFn.

The recoveryFn receives the emitted error and returns a Stream. You can perform logic in the recoveryFn to return different Streams based on the type of error that was emitted.

Example

Stream<int>.error(Exception())
  .onErrorResume((dynamic e) =>
      Stream.value(e is StateError ? 1 : 0)
  .listen(print); // prints 0
Inheritance

Constructors

OnErrorResumeStreamTransformer(Stream<S> recoveryFn(Object error, StackTrace stackTrace))
Constructs a StreamTransformer which intercepts error events and switches to a recovery Stream created by the provided recoveryFn Function.

Properties

hashCode int
The hash code for this object.
no setterinherited
recoveryFn Stream<S> Function(Object error, StackTrace stackTrace)
Method which returns a Stream, based from the error.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

bind(Stream<S> stream) Stream<S>
Transforms the provided stream.
override
cast<RS, RT>() StreamTransformer<RS, RT>
Provides a StreamTransformer<RS, RT> view of this stream transformer.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited