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MqttProperties Class — netty Architecture

Architecture documentation for the MqttProperties class in MqttProperties.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  b94e5449_132b_7007_b936_295b901f2ffe["MqttProperties"]
  5a4eca03_eb27_9264_bded_20eb1e48fedb["MqttProperties.java"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|defined in| 5a4eca03_eb27_9264_bded_20eb1e48fedb
  210ba702_af75_f8f3_53a2_2b7ecfc979f7["MqttProperties()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| 210ba702_af75_f8f3_53a2_2b7ecfc979f7
  1884d271_a8c7_8143_e8ee_2f6e4070b19d["add()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| 1884d271_a8c7_8143_e8ee_2f6e4070b19d
  045e60ec_eeba_f5c7_543e_20346d4765d8["listAll()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| 045e60ec_eeba_f5c7_543e_20346d4765d8
  8b38bc5c_505e_1003_0134_ea0c7ce277ba["isEmpty()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| 8b38bc5c_505e_1003_0134_ea0c7ce277ba
  e401a964_846f_d0cf_5cee_a99fa1aa50b3["MqttProperty()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| e401a964_846f_d0cf_5cee_a99fa1aa50b3
  c9c04203_fd0f_0702_a170_0390ec874690["getProperties()"]
  b94e5449_132b_7007_b936_295b901f2ffe -->|method| c9c04203_fd0f_0702_a170_0390ec874690

Relationship Graph

Source Code

codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttProperties.java lines 28–454

public final class MqttProperties {

    // single byte properties
    public static final int PAYLOAD_FORMAT_INDICATOR = 0x01;
    public static final int REQUEST_PROBLEM_INFORMATION = 0x17;
    public static final int REQUEST_RESPONSE_INFORMATION = 0x19;
    public static final int MAXIMUM_QOS = 0x24;
    public static final int RETAIN_AVAILABLE = 0x25;
    public static final int WILDCARD_SUBSCRIPTION_AVAILABLE = 0x28;
    public static final int SUBSCRIPTION_IDENTIFIER_AVAILABLE = 0x29;
    public static final int SHARED_SUBSCRIPTION_AVAILABLE = 0x2A;

    // two bytes properties
    public static final int SERVER_KEEP_ALIVE = 0x13;
    public static final int RECEIVE_MAXIMUM = 0x21;
    public static final int TOPIC_ALIAS_MAXIMUM = 0x22;
    public static final int TOPIC_ALIAS = 0x23;

    // four bytes properties
    public static final int PUBLICATION_EXPIRY_INTERVAL = 0x02;
    public static final int SESSION_EXPIRY_INTERVAL = 0x11;
    public static final int WILL_DELAY_INTERVAL = 0x18;
    public static final int MAXIMUM_PACKET_SIZE = 0x27;

    // Variable Byte Integer
    public static final int SUBSCRIPTION_IDENTIFIER = 0x0B;

    // UTF-8 Encoded String properties
    public static final int CONTENT_TYPE = 0x03;
    public static final int RESPONSE_TOPIC = 0x08;
    public static final int ASSIGNED_CLIENT_IDENTIFIER = 0x12;
    public static final int AUTHENTICATION_METHOD = 0x15;
    public static final int RESPONSE_INFORMATION = 0x1A;
    public static final int SERVER_REFERENCE = 0x1C;
    public static final int REASON_STRING = 0x1F;
    public static final int USER_PROPERTY = 0x26;

    // Binary Data
    public static final int CORRELATION_DATA = 0x09;
    public static final int AUTHENTICATION_DATA = 0x16;

    @Deprecated
    public enum MqttPropertyType {
        // single byte properties
        PAYLOAD_FORMAT_INDICATOR(MqttProperties.PAYLOAD_FORMAT_INDICATOR),
        REQUEST_PROBLEM_INFORMATION(MqttProperties.REQUEST_PROBLEM_INFORMATION),
        REQUEST_RESPONSE_INFORMATION(MqttProperties.REQUEST_RESPONSE_INFORMATION),
        MAXIMUM_QOS(MqttProperties.MAXIMUM_QOS),
        RETAIN_AVAILABLE(MqttProperties.RETAIN_AVAILABLE),
        WILDCARD_SUBSCRIPTION_AVAILABLE(MqttProperties.WILDCARD_SUBSCRIPTION_AVAILABLE),
        SUBSCRIPTION_IDENTIFIER_AVAILABLE(MqttProperties.SUBSCRIPTION_IDENTIFIER_AVAILABLE),
        SHARED_SUBSCRIPTION_AVAILABLE(MqttProperties.SHARED_SUBSCRIPTION_AVAILABLE),

        // two bytes properties
        SERVER_KEEP_ALIVE(MqttProperties.SERVER_KEEP_ALIVE),
        RECEIVE_MAXIMUM(MqttProperties.RECEIVE_MAXIMUM),
        TOPIC_ALIAS_MAXIMUM(MqttProperties.TOPIC_ALIAS_MAXIMUM),
        TOPIC_ALIAS(MqttProperties.TOPIC_ALIAS),

        // four bytes properties
        PUBLICATION_EXPIRY_INTERVAL(MqttProperties.PUBLICATION_EXPIRY_INTERVAL),
        SESSION_EXPIRY_INTERVAL(MqttProperties.SESSION_EXPIRY_INTERVAL),
        WILL_DELAY_INTERVAL(MqttProperties.WILL_DELAY_INTERVAL),
        MAXIMUM_PACKET_SIZE(MqttProperties.MAXIMUM_PACKET_SIZE),

        // Variable Byte Integer
        SUBSCRIPTION_IDENTIFIER(MqttProperties.SUBSCRIPTION_IDENTIFIER),

        // UTF-8 Encoded String properties
        CONTENT_TYPE(MqttProperties.CONTENT_TYPE),
        RESPONSE_TOPIC(MqttProperties.RESPONSE_TOPIC),
        ASSIGNED_CLIENT_IDENTIFIER(MqttProperties.ASSIGNED_CLIENT_IDENTIFIER),
        AUTHENTICATION_METHOD(MqttProperties.AUTHENTICATION_METHOD),
        RESPONSE_INFORMATION(MqttProperties.RESPONSE_INFORMATION),
        SERVER_REFERENCE(MqttProperties.SERVER_REFERENCE),
        REASON_STRING(MqttProperties.REASON_STRING),
        USER_PROPERTY(MqttProperties.USER_PROPERTY),

        // Binary Data
        CORRELATION_DATA(MqttProperties.CORRELATION_DATA),
        AUTHENTICATION_DATA(MqttProperties.AUTHENTICATION_DATA);

Defined In

Source

Frequently Asked Questions

What is the MqttProperties class?
MqttProperties is a class in the netty codebase, defined in codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttProperties.java.
Where is MqttProperties defined?
MqttProperties is defined in codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttProperties.java at line 28.

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