Package io.netty.handler.codec.mqtt

Enum MqttVersion

java.lang.Object

java.lang.Enum<MqttVersion>

io.netty.handler.codec.mqtt.MqttVersion

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<MqttVersion>

public enum MqttVersion
extends java.lang.Enum<MqttVersion>

Mqtt version specific constant values used by multiple classes in mqtt-codec.

Enum Constant Summary

Enum Constants

Enum Constant	Description
MQTT_3_1
MQTT_3_1_1
MQTT_5

Method Summary

Modifier and Type	Method	Description
static MqttVersion	fromProtocolNameAndLevel(java.lang.String protocolName, byte protocolLevel)
byte	protocolLevel()
java.lang.String	protocolName()
byte[]	protocolNameBytes()
static MqttVersion	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static MqttVersion[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

MQTT_3_1

public static final MqttVersion MQTT_3_1

MQTT_3_1_1

public static final MqttVersion MQTT_3_1_1

MQTT_5

public static final MqttVersion MQTT_5

Method Detail

values

public static MqttVersion[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MqttVersion c : MqttVersion.values())
    System.out.println(c);

Returns:

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

valueOf

public static MqttVersion valueOf(java.lang.String name)

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.)

Parameters:

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

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

protocolName

public java.lang.String protocolName()

protocolNameBytes

public byte[] protocolNameBytes()

protocolLevel

public byte protocolLevel()

fromProtocolNameAndLevel

public static MqttVersion fromProtocolNameAndLevel(java.lang.String protocolName,
                                                   byte protocolLevel)