TaskStatus enum
Explicit lifecycle of a persisted task.
waiting → pending (every dependency completed)
waiting → cancelled or failed (a dependency did not complete)
pending → running → completed
↘ retryScheduled → running
↘ failed
pending, waiting, or retryScheduled → cancelled
failed or cancelled → pending or waiting (DurableQueue.retry)
Values
- pending → const TaskStatus
-
Stored and eligible to start when the queue is running.
- running → const TaskStatus
-
A handler invocation is in progress.
- retryScheduled → const TaskStatus
-
The last attempt failed and another attempt is scheduled.
- completed → const TaskStatus
-
The handler finished successfully.
- failed → const TaskStatus
-
The handler failed and no further attempts will be made.
- cancelled → const TaskStatus
-
The task was cancelled before it finished.
- waiting → const TaskStatus
-
Stored, but blocked until the tasks it depends on have finished.
Declared last so that the indexes of earlier values are unchanged.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- index → int
-
A numeric identifier for the enumerated value.
no setterinherited
- isActive → bool
-
Whether the task can still run: pending, waiting, running, or
retryScheduled.
no setter
- isTerminal → bool
-
Whether the task has finished: completed, failed, or cancelled.
no setter
- name → String
-
Available on Enum, provided by the EnumName extension
The name of the enum value.no setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
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
Constants
-
values
→ const List<
TaskStatus> - A constant List of the values in this enum, in order of their declaration.