Struct Key 

pub struct Key;

The partition key: set by InboxSpec::partition_key.

Examples

use ruststream_sqlx::dialect::Column;
use ruststream_sqlx::spec::{Key, Payload};
use ruststream_sqlx::{InboxSpec, InboxTable, KeyRow};

#[derive(sqlx::FromRow)]
pub struct MeterReading {
    id: i64,
    meter: Option<String>,
    payload: Vec<u8>,
}

impl InboxTable for MeterReading {
    type Id = i64;
    // One meter's readings keep their order; a reading without a meter has no key.
    type Table = InboxSpec<(Key, Payload)>;
    const TABLE: Self::Table = InboxSpec::new("meter_readings", Column::new("id").generated())
        .partition_key(Column::new("meter"))
        .payload(Column::new("payload"));

    fn id(&self) -> &i64 {
        &self.id
    }
}

impl KeyRow for MeterReading {
    type Key = Option<String>;

    fn partition_key(&self) -> &Option<String> {
        &self.meter
    }
}

Trait Implementations

impl Debug for Key

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

Formats the value using the given formatter.

impl Declaration for Key

type Form = Unset

The form: Lease or Advisory; unset for the row lock form.

type Message = Unset

The message mode: Payload; unset for row mode.

type Key = Set<Key>

The partition key: Key.

type Attempt = Unset

The attempt count: Attempt.

type Headers = Unset

The delivery’s headers: Headers or HeaderFields.

type RetryAfter = Unset

The time a retried row is due: RetryAfter.

type ProcessedAt = Unset

The time a row was processed: ProcessedAt.

type Clock = Unset

The clock: Clock; unset for SystemClock.

type Opening = Unset

What the table’s transactions open at: Opens; unset for the database’s default.

type Fifo = Unset

Groups kept in order: Fifo.

type OwnClaim = Unset

The service’s own claim: own::Claim.

type OwnFetch = Unset

The service’s own fetch: own::Fetch.

type OwnAck = Unset

The service’s own ack: own::Ack.

type OwnRetry = Unset

The service’s own retry: own::Retry.

type OwnRetryAfter = Unset

The service’s own delayed retry: own::RetryAfter.

type OwnDiscard = Unset

The service’s own discard: own::Discard.

type OwnDeadLetter = Unset

The service’s own dead letter: own::DeadLetter.

type OwnExtend = Unset

The service’s own lease extension: own::Extend.

type OwnLock = Unset

The service’s own lock: own::Lock.

type OwnUnlock = Unset

The service’s own unlock: own::Unlock.