Struct FieldMeta 

pub struct FieldMeta {
    pub version: VersionRange,
    pub nullable: Option<VersionRange>,
    pub kind: KindMeta,
    pub tag: Option<u32>,
    pub tagged: Option<VersionRange>,
    pub fields: &'static [(&'static str, &'static FieldMeta)],
}

Kafka API message field metadata

Fields

version: VersionRange

The version range of this field.

nullable: Option<VersionRange>

The version range where this field may be null.

kind: KindMeta

The kind (type) metadata of this field.

tag: Option<u32>

When present the tag ID of this field.

tagged: Option<VersionRange>

The range of versions where this field is tagged.

fields: &'static [(&'static str, &'static FieldMeta)]

The fields contained within this structure.

Implementations

impl FieldMeta

pub fn is_nullable(&self, version: i16) -> bool

pub fn is_mandatory(&self, parent: Option<VersionRange>) -> bool

pub fn is_structure(&self) -> bool

pub fn structures(&self) -> Vec<(&str, &FieldMeta)>

pub fn field(&self, name: &str) -> Option<&FieldMeta>

Trait Implementations

impl Clone for FieldMeta

fn clone(&self) -> FieldMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldMeta

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

Formats the value using the given formatter.

impl Default for FieldMeta

fn default() -> FieldMeta

Returns the “default value” for a type.

impl Hash for FieldMeta

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 FieldMeta

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

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

fn partial_cmp(&self, other: &FieldMeta) -> 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 Copy for FieldMeta

impl Eq for FieldMeta

impl StructuralPartialEq for FieldMeta