MqttSession class abstract

Class is used for managing MQTT session and publishing position data to MQTT broker. Referenced from NavigineSdk.

Implemented types
Implementers

Constructors

MqttSession()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addListener(MqttSessionListener listener) → void
Method is used to add MqttSessionListener class element which will notify about MQTT session connection state changes. Note: Do not forget to remove listener if it is no longer needed! listener Corresponding MqttSessionListener class.
connect(String server, int port, String username, String password) → void
Method is used to connect to MQTT broker and start publishing position data. server MQTT broker server hostname or IP address. port MQTT broker server port. username MQTT broker username for authentication. password MQTT broker password for authentication.
disconnect() → void
Method is used to disconnect from MQTT broker and stop publishing position data.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
publish(String topic, String message) → void
Method is used to publish a custom message to a specified MQTT topic. The message will be sent asynchronously and the result will be notified through Note: The MQTT session must be connected before calling this method. Use connect method first. MqttSessionListener callbacks (onMessagePublished for success, onError for failure). topic MQTT topic to publish the message to. Can be any valid MQTT topic string. message Message content to publish. Can be any string (JSON, plain text, etc.).
removeListener(MqttSessionListener listener) → void
Method is used for removing previously added MqttSessionListener class element. listener Corresponding MqttSessionListener class to remove.
setSubTopic(String subTopic) → void
Method is used to set MQTT sub-topic for publishing position data. The final topic will be "navigine/mobile/positions/" + subTopic + "/" + deviceId. subTopic MQTT sub-topic for publishing position data. Must match pattern 0-9a-zA-Z_-+ and cannot be empty.
toString() → String
A string representation of this object.
inherited

Operators

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