MqttIVariableHeader class abstract

Variable header base class

Some types of MQTT Control Packet contain a Variable Header component. It resides between the Fixed Header and the Payload. The content of the Variable Header varies depending on the message type. The Packet Identifier field of Variable Header is common in several message types.

Implementers

• MqttAuthenticateVariableHeader
• MqttConnectAckVariableHeader
• MqttConnectVariableHeader
• MqttDisconnectVariableHeader
• MqttPublishAckVariableHeader
• MqttPublishCompleteVariableHeader
• MqttPublishReceivedVariableHeader
• MqttPublishReleaseVariableHeader
• MqttPublishVariableHeader
• MqttSubscribeAckVariableHeader
• MqttSubscribeVariableHeader
• MqttUnsubscribeAckVariableHeader
• MqttUnsubscribeVariableHeader

Constructors

MqttIVariableHeader()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

length → int

The length of the variable header in bytes

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

getWriteLength() → int

Gets the length of the write data when WriteTo will be called. A subclass that overrides writeTo must also overwrite this method.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

readFrom(MqttByteBuffer stream) → void

Deserialize from a byte buffer stream

toString() → String

A string representation of this object.

inherited

writeTo(MqttByteBuffer stream) → void

Serialize to a byte buffer stream

Operators

operator ==(Object other) → bool

The equality operator.

inherited