Struct DirectedReadOptions 

pub struct DirectedReadOptions {
    pub exclude_replicas: Option<ExcludeReplicas>,
    pub include_replicas: Option<IncludeReplicas>,
}

The DirectedReadOptions can be used to indicate which replicas or regions should be used for non-transactional reads or queries. DirectedReadOptions can only be specified for a read-only transaction, otherwise the API returns an INVALID_ARGUMENT error.

This type is not used in any activity, and only used as part of another schema.

Fields

exclude_replicas: Option<ExcludeReplicas>

Exclude_replicas indicates that specified replicas should be excluded from serving requests. Spanner doesn’t route requests to the replicas in this list.

include_replicas: Option<IncludeReplicas>

Include_replicas indicates the order of replicas (as they appear in this list) to process the request. If auto_failover_disabled is set to true and all replicas are exhausted without finding a healthy replica, Spanner waits for a replica in the list to become available, requests might fail due to DEADLINE_EXCEEDED errors.

Trait Implementations

impl Clone for DirectedReadOptions

fn clone(&self) -> DirectedReadOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectedReadOptions

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

Formats the value using the given formatter.

impl Default for DirectedReadOptions

fn default() -> DirectedReadOptions

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DirectedReadOptions

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DirectedReadOptions

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Part for DirectedReadOptions