pub struct FeedEvent<T> {
pub event: ModelEvent<T>,
pub before: Option<T>,
}Expand description
A model event as it comes off the backplane: the event a subscriber may be
sent, and, for an update on an @@subscribe model, the row before it. The
pre-image stays server-side: it is only ever the data of a filter-exit
event, after the subscriber’s own read check (route_event).
Fields§
§event: ModelEvent<T>§before: Option<T>Trait Implementations§
Source§impl<T> TryFrom<CratestackEventEnvelope> for FeedEvent<T>where
T: DeserializeOwned,
impl<T> TryFrom<CratestackEventEnvelope> for FeedEvent<T>where
T: DeserializeOwned,
Source§type Error = CratestackError
type Error = CratestackError
Source§fn try_from(
envelope: CratestackEventEnvelope,
) -> Result<FeedEvent<T>, <FeedEvent<T> as TryFrom<CratestackEventEnvelope>>::Error>
fn try_from( envelope: CratestackEventEnvelope, ) -> Result<FeedEvent<T>, <FeedEvent<T> as TryFrom<CratestackEventEnvelope>>::Error>
Auto Trait Implementations§
impl<T> Freeze for FeedEvent<T>where
T: Freeze,
impl<T> RefUnwindSafe for FeedEvent<T>where
T: RefUnwindSafe,
impl<T> Send for FeedEvent<T>where
T: Send,
impl<T> Sync for FeedEvent<T>where
T: Sync,
impl<T> Unpin for FeedEvent<T>where
T: Unpin,
impl<T> UnsafeUnpin for FeedEvent<T>where
T: UnsafeUnpin,
impl<T> UnwindSafe for FeedEvent<T>where
T: UnwindSafe,
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