library/org.meshtastic.mqtt/MqttProtocolVersion

MqttProtocolVersion

enum MqttProtocolVersion : Enum<MqttProtocolVersion>

MQTT protocol version for the client connection.

Determines the wire format, packet encoding, and available features. MQTT 3.1.1 uses a simpler packet format without properties, reason codes in most packets, or advanced features like topic aliases and enhanced auth.

Entries

V3_1_1

MQTT 3.1.1 (protocol level 4).

V5_0

MQTT 5.0 (protocol level 5).

Types

Companion

object Companion

Properties

entries

val entries: EnumEntries<MqttProtocolVersion>

Returns a representation of an immutable list of all enum entries, in the order they're declared.

name

expect val name: String

ordinal

expect val ordinal: Int

protocolLevel

val protocolLevel: Int

The protocol level byte sent in the CONNECT packet variable header.

supportsProperties

val supportsProperties: Boolean

Returns true if this version supports MQTT 5.0 properties on packets.

Functions

valueOf

fun valueOf(value: String): MqttProtocolVersion

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

values

fun values(): Array<MqttProtocolVersion>

Returns an array containing the constants of this enum type, in the order they're declared.