Struct TopologyRange 

pub struct TopologyRange { /* private fields */ }

One range’s routing metadata as a driver sees it.

Carries everything a driver needs to route a key directly to its owner and fence the write at the right epoch: the half-open bounds for client-side range routing, the owner to send to, the replicas for read fan-out, the epoch to stamp a write at, and the version used to decide whether an incoming update is newer than what is cached.

Implementations

impl TopologyRange

pub fn collection(&self) -> &CollectionId

pub fn collection_group(&self) -> &CollectionGroupId

pub fn placement_authority(&self) -> &PlacementAuthorityId

pub fn range_id(&self) -> RangeId

pub fn shard_key_mode(&self) -> ShardKeyMode

pub fn bounds(&self) -> &RangeBounds

pub fn owner(&self) -> &NodeIdentity

pub fn range_owner(&self) -> &NodeIdentity

pub fn replicas(&self) -> &[NodeIdentity]

pub fn hot_mirror_replicas(&self) -> &[NodeIdentity]

pub fn compressed_archive_replicas(&self) -> &[NodeIdentity]

pub fn replica_role_of(&self, node: &NodeIdentity) -> Option<ReplicaRole>

pub fn promotion_candidates(&self) -> &[NodeIdentity]

pub fn epoch(&self) -> OwnershipEpoch

The epoch a driver should stamp a write to this range at — the same epoch the owner’s admit_public_write gate will check (issue #990).

pub fn version(&self) -> CatalogVersion

Trait Implementations

impl Clone for TopologyRange

fn clone(&self) -> TopologyRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopologyRange

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

Formats the value using the given formatter.

impl Eq for TopologyRange

impl PartialEq for TopologyRange

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TopologyRange