AsyncTask<P, R> class abstract

Base class for tasks implementation.

Available Extensions

Constructors

AsyncTask()

Properties

endTime → DateTime?
The execution end time.
no setter
error → dynamic
The error, after the task execution is finished.
no setter
executionTime → Duration?
no setter
executorThread → AsyncExecutorThread?
no setter
hasError → bool
Returns true if this task execution has finished with an error.
no setter
hashCode → int
The hash code for this object.
no setterinherited
initTime → DateTime?
The execution initial time.
no setter
isFinished → bool
Returns true if this task execution has finished.
no setter
isIdle → bool
Returns true if this task has NOT yet been submitted.
no setter
isInExecutionContext → bool
if true, indicates that the current context is inside AsyncTask.run.
no setter
isNotFinished → bool
Returns true if this task execution has NOT finished.
no setter
isSuccessful → bool
Returns true if this task execution has finished successfully.
no setter
result → R?
The result, after the task execution is finished.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
status → AsyncTaskStatus
The current status.
no setter
submitTime ↔ DateTime?
The submit time.
getter/setter pair
taskType → String
no setter
wasSubmitted → bool
Returns true if this task has been submitted.
no setter
zone → Zone
The original Zone where this AsyncTask instance was created.
no setter

Methods

addOnFinishAsyncTask(OnFinishAsyncTask onFinishAsyncTask) → void
Adds a trigger to be called when this tasks finishes.
channel() → FutureOr<AsyncTaskChannel?>
Returns an optional AsyncTaskChannel for communication with the task.
channelInstantiator() → AsyncTaskChannel?
Instantiate the optional AsyncTaskChannel return by channel.
channelResolved() → AsyncTaskChannel?
Returns an optional AsyncTaskChannel. If not resolved yet will return null.
copy() → AsyncTask<P, R>
Creates a copy of this task in its initial state (before execution state).
execute() → FutureOr<R>
Executes this tasks immediately.
executeAndCast<T>() → FutureOr<T>
Alias for execute, casting the result to T.
instantiate(P parameters, [Map<String, SharedData>? sharedData]) → AsyncTask<P, R>
Creates an instance of this task type with parameters and optional sharedData.
loadSharedData(String key, dynamic serial) → SharedData?
Load of a SharedData serial for the corresponding key.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
parameters() → P
The parameters of this tasks.
reset() → void
Resets this task to it's initial state, before any execution.
resolveChannel(void initializer(AsyncTask task, AsyncTaskChannel channel)) → AsyncTaskChannel?
Resolves the channel instance. Called by AsyncExecutor when executing this task.
run() → FutureOr<R>
Computes/runs this task.
sharedData() → Map<String, SharedData>?
Returns an optional Map of SharedData, where each entry will be transferred to the executor thread/isolate only once.
toString() → String
A string representation of this object.
override
waitResult() → Future<R>
Returns a Future to wait for the task result.

Operators

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