Struct PlacementMetadata 

pub struct PlacementMetadata { /* private fields */ }

Placement metadata the rebalancer reads when planning transitions.

The MVP carries the range’s replication factor plus a free-form attribute map for region/zone/operator-weight hints. It is descriptive control-plane data, not an authorization source.

Implementations

impl PlacementMetadata

pub fn with_replication_factor(replication_factor: usize) -> PlacementMetadata

Placement with a target replication factor and no attributes.

pub fn with_attribute( self, key: impl Into<String>, value: impl Into<String>, ) -> PlacementMetadata

Attach a placement attribute (e.g. region → us-east-1).

pub fn replication_factor(&self) -> usize

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

Trait Implementations

impl Clone for PlacementMetadata

fn clone(&self) -> PlacementMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlacementMetadata

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

Formats the value using the given formatter.

impl Default for PlacementMetadata

fn default() -> PlacementMetadata

Returns the “default value” for a type.

impl Eq for PlacementMetadata

impl PartialEq for PlacementMetadata

fn eq(&self, other: &PlacementMetadata) -> 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 StructuralPartialEq for PlacementMetadata