Notification<T> class
A class that encapsulates the Kind of event, value of the event in case of onData, or the Error in the case of onError. A container object that wraps the Kind of event (OnData, OnDone, OnError), and the item or error that was emitted. In the case of onDone, no data is emitted as part of the Notification.
Constructors
- Notification(Kind kind, T value, dynamic error, StackTrace stackTrace)
-
Constructs a Notification which, depending on the
kind, wraps eithervalue, orerrorandstackTrace, or neither if it is just a Kind.OnData event. - Notification.onData(T value)
-
Constructs a Notification with Kind.OnData and wraps a
valuefactory - Notification.onDone()
-
Constructs a Notification with Kind.OnDone
factory
- Notification.onError(dynamic error, StackTrace stackTrace)
-
Constructs a Notification with Kind.OnError and wraps an
errorandstackTracefactory
Properties
- error → dynamic
-
The wrapped error, if applicable
final
- hashCode → int
-
The hash code for this object. [...]
read-only
- isOnData → bool
-
A test to determine if this Notification wraps an onData event
read-only
- isOnDone → bool
-
A test to determine if this Notification wraps an onDone event
read-only
- isOnError → bool
-
A test to determine if this Notification wraps an error event
read-only
- kind → Kind
-
References the Kind of this Notification event.
final
- stackTrace → StackTrace
-
The wrapped stackTrace, if applicable
final
- value → T
-
The wrapped value, if applicable
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
toString(
) → String - Returns a string representation of this object.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
Operators
-
operator ==(
Object other) → bool - The equality operator. [...]