Struct Locality 

pub struct Locality { /* private fields */ }

Ordered locality tiers of a node, coarsest first, following the region, availability zone, rack, node hierarchy of spec section 13.7.

The canonical text form is comma-separated key=value pairs, matching the node configuration file (locality = "region=us-central,zone=a", spec section 16.1). Parsing trims surrounding whitespace, rejects malformed, empty, and duplicate tiers, and preserves tier order.

Implementations

impl Locality

pub fn tiers(&self) -> &[(String, String)]

The ordered (key, value) tiers, coarsest first.

pub fn get(&self, key: &str) -> Option<&str>

The value of one tier key, if present.

Trait Implementations

impl Clone for Locality

fn clone(&self) -> Locality

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Locality

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

Formats the value using the given formatter.

impl Default for Locality

fn default() -> Locality

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Locality

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

Deserialize this value from the given Serde deserializer.

impl Display for Locality

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

Formats the value using the given formatter.

impl Eq for Locality

impl FromStr for Locality

type Err = LocalityParseError

The associated error which can be returned from parsing.

fn from_str(text: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Locality

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Locality

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

Serializes as the canonical key=value,... string in every format.

impl StructuralPartialEq for Locality