Enum ShardingStrategy 

pub enum ShardingStrategy {
    EntityHash,
    RoundRobin,
}

How a ModelShardManager decides which shard owns a given entity.

Variants

EntityHash

Hash the entity ID with a fixed seed and take hash mod num_shards.

The default — gives uniformly distributed shards under the assumption that the underlying hash is well-mixed.

RoundRobin

Round-robin assignment in lexicographic order of insertion.

Used by tests that need a known mapping; not recommended in production because shard load depends on insertion order.

Trait Implementations

impl Clone for ShardingStrategy

fn clone(&self) -> ShardingStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShardingStrategy

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

Formats the value using the given formatter.

impl Default for ShardingStrategy

fn default() -> ShardingStrategy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ShardingStrategy

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ShardingStrategy

fn eq(&self, other: &ShardingStrategy) -> 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 Serialize for ShardingStrategy

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ShardingStrategy

impl Eq for ShardingStrategy

impl StructuralPartialEq for ShardingStrategy