Enum ProtocolVersion 

#[repr(i32)]
pub enum ProtocolVersion {
    V0 = 0,
    V1 = 1,
    V2 = 2,
    V3 = 3,
    V4 = 4,
    V5 = 5,
    V6 = 6,
    V7 = 7,
    V8 = 8,
    V9 = 9,
    V10 = 10,
    V11 = 11,
    V12 = 12,
    V13 = 13,
    V14 = 14,
    V15 = 15,
    V16 = 16,
    V17 = 17,
    V18 = 18,
    V19 = 19,
}

Each protocol version identify new features that are incrementally added to the protocol

Variants

V0 = 0

Initial versioning

V1 = 1

Added application keep-alive

V2 = 2

Added RedeliverUnacknowledgedMessages Command

V3 = 3

Added compression with LZ4 and ZLib

V4 = 4

Added batch message support

V5 = 5

Added disconnect client w/o closing connection

V6 = 6

Added checksum computation for metadata + payload

V7 = 7

Added CommandLookupTopic - Binary Lookup

V8 = 8

Added CommandConsumerStats - Client fetches broker side consumer stats

V9 = 9

Added end of topic notification

V10 = 10

Added proxy to broker

V11 = 11

C++ consumers before this version are not correctly handling the checksum field

V12 = 12

Added get topic’s last messageId from broker

V13 = 13

Added CommandActiveConsumerChange Added CommandGetTopicsOfNamespace

Schema-registry : added avro schema format for json

V14 = 14

Add CommandAuthChallenge and CommandAuthResponse for mutual auth

V15 = 15

Added Key_Shared subscription

Add CommandGetOrCreateSchema and CommandGetOrCreateSchemaResponse

V16 = 16

Add support for broker entry metadata

V17 = 17

Added support ack receipt

V18 = 18

Add client support for broker entry metadata

V19 = 19

Add CommandTcClientConnectRequest and CommandTcClientConnectResponse

Implementations

impl ProtocolVersion

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of ProtocolVersion.

pub fn from_i32(value: i32) -> Option<ProtocolVersion>

👎Deprecated:

Use the TryFrom<i32> implementation instead

Converts an i32 to a ProtocolVersion, or None if value is not a valid variant.

impl ProtocolVersion

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for ProtocolVersion

fn clone(&self) -> ProtocolVersion

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProtocolVersion

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ProtocolVersion

fn default() -> ProtocolVersion

Returns the “default value” for a type.

impl From<ProtocolVersion> for i32

fn from(value: ProtocolVersion) -> i32

Converts to this type from the input type.

impl Hash for ProtocolVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ProtocolVersion

fn cmp(&self, other: &ProtocolVersion) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ProtocolVersion

fn eq(&self, other: &ProtocolVersion) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ProtocolVersion

fn partial_cmp(&self, other: &ProtocolVersion) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<i32> for ProtocolVersion

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<ProtocolVersion, UnknownEnumValue>

Performs the conversion.

impl Copy for ProtocolVersion

impl Eq for ProtocolVersion

impl StructuralPartialEq for ProtocolVersion