Enum Class MqttVersion

java.lang.Object

java.lang.Enum<MqttVersion>

org.mqtt4j.hato.MqttVersion

All Implemented Interfaces:

Serializable, Comparable<MqttVersion>, Constable

public enum MqttVersion
extends Enum<MqttVersion>

The MQTT protocol versions supported by Hato.

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
V3_1_1	MQTT 3.1.1.
V5	MQTT 5.0.

Method Summary

Modifier and Type	Method	Description
int	protocolLevel()	Returns the protocol level sent in the CONNECT packet.
static MqttVersion	valueOf(String name)	Returns the enum constant of this class with the specified name.
static MqttVersion[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

V3_1_1

public static final MqttVersion V3_1_1

MQTT 3.1.1. Protocol level 4 on the wire.

V5

public static final MqttVersion V5

MQTT 5.0. Protocol level 5 on the wire.

Method Details

values

public static MqttVersion[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static MqttVersion valueOf(String name)

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

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

protocolLevel

public int protocolLevel()

Returns the protocol level sent in the CONNECT packet.

Returns:

the protocol level sent in the CONNECT packet