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ReadStreamBackend

nstreams_core::stream

Trait ReadStreamBackend 

Source 
pub trait ReadStreamBackend: Send + Sync {
    // Required methods
    fn stream_exists<'life0, 'life1, 'async_trait, N>(
        &'life0 self,
        namespace: &'life1 N,
    ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>
       where N: 'async_trait + Namespace,
             Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn create_read_stream<'life0, 'life1, 'async_trait, N>(
        &'life0 self,
        namespace: &'life1 N,
        max_event_bytes: u64,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where N: 'async_trait + Namespace,
             Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn publish_to_stream<'life0, 'life1, 'async_trait>(
        &'life0 self,
        event: &'life1 StreamEvent,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn populate_stream<'life0, 'life1, 'async_trait>(
        &'life0 self,
        events: &'life1 [StreamEvent],
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn subscribe_live<'life0, 'life1, 'async_trait, N>(
        &'life0 self,
        namespace: &'life1 N,
    ) -> Pin<Box<dyn Future<Output = Result<impl Stream<Item = Result<StreamEvent>> + Send>> + Send + 'async_trait>>
       where N: 'async_trait + Namespace,
             Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}
Expand description

Manages read-side RabbitMQ streams and live consumption.

Required Methods§

Source

fn stream_exists<'life0, 'life1, 'async_trait, N>( &'life0 self, namespace: &'life1 N, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>
where N: 'async_trait + Namespace, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns true when the read stream already exists.

Source

fn create_read_stream<'life0, 'life1, 'async_trait, N>( &'life0 self, namespace: &'life1 N, max_event_bytes: u64, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where N: 'async_trait + Namespace, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Create a read stream sized for the namespace’s retention policy.

Source

fn publish_to_stream<'life0, 'life1, 'async_trait>( &'life0 self, event: &'life1 StreamEvent, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Publish a versioned event to the read stream.

Source

fn populate_stream<'life0, 'life1, 'async_trait>( &'life0 self, events: &'life1 [StreamEvent], ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Publish a batch of historical events during stream bootstrap.

Source

fn subscribe_live<'life0, 'life1, 'async_trait, N>( &'life0 self, namespace: &'life1 N, ) -> Pin<Box<dyn Future<Output = Result<impl Stream<Item = Result<StreamEvent>> + Send>> + Send + 'async_trait>>
where N: 'async_trait + Namespace, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Subscribe to the live tail of a read stream.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§