Enum Header 

pub enum Header {
    Boolean(bool),
    Int(i32),
    UInt(u32),
    String(String),
}

Represents the value assigned to a RabbitMQ header, specifically the binding header. This enumeration is used for deserializing Ingress definitions.

Important: integer size

It is not made abundantly clear, but when matching headers for the purposes of routing messages, RabbitMQ supports integer header values only up to 32-bit size. At the same time, RabbitMQ supports 64-bit integer header values just fine when simply attached to the message. Yet, during the routing process, the headers with 64-bit integer values are ignored.

Thus, i32 and u32 are chosen to underlie the integer variants of this enumeration.

Variants

Boolean(bool)

Represents the boolean header value.

Int(i32)

Represents the signed integer header value.

UInt(u32)

Represents the unsigned integer header value.

String(String)

Represents the string header value.

Implementations

impl Header

pub fn is_empty(&self) -> bool

Reports whether this Header may be considered empty (which means an empty string). Note that numerical zero values are not empty, and neither is false.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Header

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Header

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&str> for Header

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<Header> for AMQPValue

fn from(value: Header) -> Self

Converts to this type from the input type.

impl From<String> for Header

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<bool> for Header

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<i16> for Header

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Header

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i8> for Header

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u16> for Header

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Header

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u8> for Header

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Hash for Header

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 Header

fn cmp(&self, other: &Header) -> 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 Header

fn eq(&self, other: &Header) -> 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 Header

fn partial_cmp(&self, other: &Header) -> 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 Serialize for Header

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Header

impl StructuralPartialEq for Header