Enum eventstore::prelude::ExpectedRevision[][src]

pub enum ExpectedRevision {
    Any,
    StreamExists,
    NoStream,
    Exact(u64),
}

Constants used for expected version control. The use of expected version can be a bit tricky especially when discussing assurances given by the GetEventStore server.

The GetEventStore server will assure idempotency for all operations using any value in ExpectedRevision except ExpectedRevision::Any. When using ExpectedRevision::Any, the GetEventStore server will do its best to assure idempotency but will not guarantee idempotency.

Variants

Any

This write should not conflict with anything and should always succeed.

StreamExists

The stream should exist. If it or a metadata stream does not exist, treats that as a concurrency problem.

NoStream

The stream being written to should not yet exist. If it does exist, treats that as a concurrency problem.

Exact(u64)

States that the last event written to the stream should have an event number matching your expected value.

Trait Implementations

impl Clone for ExpectedRevision[src]

impl Copy for ExpectedRevision[src]

impl Debug for ExpectedRevision[src]

impl Eq for ExpectedRevision[src]

impl PartialEq<ExpectedRevision> for ExpectedRevision[src]

impl StructuralEq for ExpectedRevision[src]

impl StructuralPartialEq for ExpectedRevision[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
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impl<T> Conv for T

impl<T> Conv for T

impl<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized
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impl<T> FmtForward for T

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impl<T> Instrument for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> IntoRequest<T> for T[src]

impl<T> Pipe for T where
    T: ?Sized

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type Owned = T

The resulting type after obtaining ownership.

impl<T> TryConv for T

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impl<T, U> TryFrom<U> for T where
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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impl<T> WithSubscriber for T[src]