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UnwrapLogEntries

Struct UnwrapLogEntries

pub struct UnwrapLogEntries;

Expand description

Saga: every LogEntry SET (from CLI pushes or Postgres replay) is unwrapped into its inner event.

Trait Implementations§

impl Saga for UnwrapLogEntries

type State = ()

Accumulated state type for this saga. Use () for stateless sagas.

type Command = <UnwrapLogEntries as SagaHandler>::Command

Typed command emitted by this saga.

fn name() -> &'static str

Human-readable name for logging and debugging.

fn build( events: EventStream, ctx: Arc<SagaContext>, ) -> BoxStream<'static, Self::Command>

Build the event processing pipeline.

impl SagaHandler for UnwrapLogEntries

const EVENT_TYPE: MEventType = MEventType::SET

Event change type consumed by this saga.

type EventItem = LogEntry

Event item type consumed by this saga.

type Command = ApplyLogEntry

Command type emitted by this saga.

fn handle( item: LogEntry, _event: MEvent, _ctx: Arc<SagaContext>, ) -> Option<ApplyLogEntry>

Handle one matching event and optionally emit a command.

Auto Trait Implementations§

impl Freeze for UnwrapLogEntries

impl RefUnwindSafe for UnwrapLogEntries

impl Send for UnwrapLogEntries

impl Sync for UnwrapLogEntries

impl Unpin for UnwrapLogEntries

impl UnsafeUnpin for UnwrapLogEntries

impl UnwindSafe for UnwrapLogEntries

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<S> AnySaga for S
where S: Saga,

fn name(&self) -> &'static str

Get the saga’s name.

fn build_boxed( &self, events: Pin<Box<dyn Stream<Item = MEvent> + Send>>, ctx: Arc<SagaContext>, ) -> Pin<Box<dyn Stream<Item = Box<dyn SagaCommand>> + Send>>

Build the event processing pipeline.

fn create_state(&self) -> Box<dyn Any + Sync + Send>

Create the initial state for this saga.

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> Same for T

type Output = T

Should always be Self

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more