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VersionedBackend

Struct VersionedBackend 

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pub struct VersionedBackend<B> { /* private fields */ }
Expand description

A backend adapter that opens a tick for every write (one per interactive transaction), and hands out capabilities matching the store’s level. Stores wrap their backend in it.

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impl<B> VersionedBackend<B>

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pub fn new(inner: B, caps: &Capabilities, level: Versioning) -> Self

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pub fn inner(&self) -> &B

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pub fn level(&self) -> Versioning

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pub fn set_level(&self, level: Versioning)

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pub fn set_commit_info(&self, info: CommitInfo)

Author and message recorded on the ticks of later writes (until changed).

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pub fn commit_info(&self) -> CommitInfo

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impl<B: AsyncBackend> AsyncBackend for VersionedBackend<B>

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async fn execute(&self, request: &Request) -> Result<Response>

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fn capabilities(&self) -> &Capabilities

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impl<B: SyncBackend> SyncBackend for VersionedBackend<B>

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fn execute(&self, request: &Request) -> Result<Response>

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fn capabilities(&self) -> &Capabilities

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fn begin(&self) -> Result<()>

Starts an interactive transaction (savepoint). Only for backends with interactive_transactions.
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fn commit(&self) -> Result<()>

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fn rollback(&self) -> Result<()>

Auto Trait Implementations§

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impl<B> !Freeze for VersionedBackend<B>

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impl<B> RefUnwindSafe for VersionedBackend<B>
where B: RefUnwindSafe,

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impl<B> Send for VersionedBackend<B>
where B: Send,

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impl<B> Sync for VersionedBackend<B>
where B: Sync,

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impl<B> Unpin for VersionedBackend<B>
where B: Unpin,

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impl<B> UnsafeUnpin for VersionedBackend<B>
where B: UnsafeUnpin,

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impl<B> UnwindSafe for VersionedBackend<B>
where B: UnwindSafe,

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

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

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

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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

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fn vzip(self) -> V