cqrs::trivial

Struct NullSnapshotStore

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pub struct NullSnapshotStore<A>(/* private fields */)
where
    A: Aggregate;
Expand description

A trivial store that never has any snapshots, and which always succeeds in persisting data (which is immediately dropped).

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impl<A> NullSnapshotStore<A>
where A: Aggregate,

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pub const DEFAULT: Self

A constant value representing a trivial event store.

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impl<A> Clone for NullSnapshotStore<A>
where A: Aggregate + Clone,

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fn clone(&self) -> NullSnapshotStore<A>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<A> Debug for NullSnapshotStore<A>
where A: Aggregate,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<A> Default for NullSnapshotStore<A>
where A: Aggregate,

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<A> SnapshotSink<A> for NullSnapshotStore<A>
where A: Aggregate,

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type Error = Void

The error type.
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fn persist_snapshot<I>( &self, _id: &I, _aggregate: &A, _version: Version, last_snapshot_version: Option<Version>, ) -> Result<Version, Self::Error>
where I: AggregateId<A>, Self: Sized,

Writes an aggregate with its version to the sink. Returns the version number of the latest snapshot.
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impl<A> SnapshotSource<A> for NullSnapshotStore<A>
where A: Aggregate,

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type Error = Void

The error type.
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fn get_snapshot<I>( &self, _id: &I, ) -> Result<Option<VersionedAggregate<A>>, Self::Error>
where I: AggregateId<A>, Self: Sized,

Loads a versioned aggregate from the snapshot source.
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impl<A> Copy for NullSnapshotStore<A>
where A: Aggregate + Copy,

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

Performs the conversion.