[−][src]Enum eventstore::types::ExpectedVersion
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 ExpectedVersion
except ExpectedVersion::Any
. When using
ExpectedVersion::Any
, the GetEventStore server will do its best to assure
idempotency but will not guarantee idempotency.
Variants
This write should not conflict with anything and should always succeed.
The stream should exist. If it or a metadata stream does not exist, treats that as a concurrency problem.
The stream being written to should not yet exist. If it does exist, treats that as a concurrency problem.
Exact(i64)
States that the last event written to the stream should have an event number matching your expected value.
Trait Implementations
impl Clone for ExpectedVersion
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fn clone(&self) -> ExpectedVersion
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fn clone_from(&mut self, source: &Self)
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impl Copy for ExpectedVersion
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impl Debug for ExpectedVersion
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Auto Trait Implementations
impl RefUnwindSafe for ExpectedVersion
impl Send for ExpectedVersion
impl Sync for ExpectedVersion
impl Unpin for ExpectedVersion
impl UnwindSafe for ExpectedVersion
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
U: TryFrom<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,