com.gettyio.expansion.handler.codec.mqtt (getty-expansion 1.4.9 API)

类概要
类	说明
MqttConnAckMessage	See MQTTV3.1/connack
MqttConnAckVariableHeader	Variable header of `MqttConnectMessage`
MqttConnectMessage	See MQTTV3.1/connect
MqttConnectPayload	Payload of `MqttConnectMessage`
MqttConnectVariableHeader	Variable Header for the `MqttConnectMessage`
MqttDecoder	MqttDecoder.java
MqttEncoder	MqttEncoder.java
MqttFixedHeader	See MQTTV3.1/fixed-header
MqttMessage	Base class for all MQTT message types.
MqttMessageBuilders
MqttMessageBuilders.ConnAckBuilder
MqttMessageBuilders.ConnectBuilder
MqttMessageBuilders.PublishBuilder
MqttMessageBuilders.SubscribeBuilder
MqttMessageBuilders.UnsubscribeBuilder
MqttMessageFactory	Utility class with factory methods to create different types of MQTT messages.
MqttMessageIdVariableHeader	Variable Header containing only Message Id See MQTTV3.1/msg-id
MqttPubAckMessage	See MQTTV3.1/puback
MqttPublishMessage	See MQTTV3.1/publish
MqttPublishVariableHeader	Variable Header of the `MqttPublishMessage`
MqttSubAckMessage	See MQTTV3.1/suback
MqttSubAckPayload	Payload of the `MqttSubAckMessage`
MqttSubscribeMessage	See MQTTV3.1/subscribe
MqttSubscribePayload	Payload of the `MqttSubscribeMessage`
MqttTopicSubscription	Contains a topic name and Qos Level.
MqttUnsubAckMessage	See MQTTV3.1/unsuback
MqttUnsubscribeMessage	See MQTTV3.1/unsubscribe
MqttUnsubscribePayload	Payload of the `MqttUnsubscribeMessage`

枚举概要
枚举	说明
MqttConnectReturnCode	Return Code of `MqttConnAckMessage`
MqttMessageType	MQTT Message Types.
MqttQoS
MqttVersion	Mqtt version specific constant values used by multiple classes in mqtt-codec.

异常错误概要
异常错误	说明
MqttIdentifierRejectedException	A `MqttIdentifierRejectedException` which is thrown when a CONNECT request contains invalid client identifier.
MqttUnacceptableProtocolVersionException	A `MqttUnacceptableProtocolVersionException` which is thrown when a CONNECT request contains unacceptable protocol version.

程序包com.gettyio.expansion.handler.codec.mqtt的说明

Encoder, decoder and different Message Types for MQTT. copy from netty，Make it fit，thanks mqtt编解码引用自netty，加以改造成getty合适的。