AbstractDataManager class abstract

An abstract DataManager implementation useful for extension.

Takes data from a Stream<DataPoint> and uploads these. Also supports JSON encoding via the toJsonString method.

Implemented types

• DataManager

Implementers

• ConsoleDataManager
• FileDataManager
• SQLiteDataManager

Constructors

AbstractDataManager()

Properties

dataEndPoint → DataEndPoint?

The DataEndPoint that this data manager is handling. Set in the initialize method.

no setter

deployment → SmartphoneDeployment

The deployment using this data manager.

no setter, override

events → Stream<DataManagerEvent>

Stream of data manager events.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

studyDeploymentId → String

The ID of the study deployment that this manager is handling.

no setter, override

type → String

The type of this data manager as enumerated in DataEndPointTypes.

no setter, inherited

Methods

addEvent(DataManagerEvent event) → void

Add event to the events stream.

close() → Future<void>

Flush any buffered data and close this data manager. After calling close the data manager can no longer be used.

override

initialize(DataEndPoint dataEndPoint, SmartphoneDeployment deployment, Stream<Measurement> measurements) → Future<void>

Initialize the data manager by specifying the study deployment, the dataEndPoint, and the stream of measurements events to handle.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onDone() → Future<void>

When the data stream closes, the onDone handler is called. Default implementation is a no-op function. If another behavior is wanted, implementations of this abstract data manager should handle closing of the data stream.

override

onError(Object? error) → Future<void>

When an error event is send on the stream, the onError handler is called.

override

onMeasurement(Measurement measurement) → Future<void>

On each measurement collected, the onMeasurement handler is called.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited