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PurposeMutationTransaction

projectatlas_db

Struct PurposeMutationTransaction 

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pub struct PurposeMutationTransaction<'connection> { /* private fields */ }
Expand description

Caller-owned purpose mutation transaction with an explicit commit boundary.

Purpose adapters keep this guard alive while they revalidate saved-source admission. Dropping it before Self::commit rolls the mutation back.

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impl PurposeMutationTransaction<'_>

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pub fn commit(self) -> DbResult<()>

Commit the admitted purpose mutation.

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Returns an error when SQLite cannot commit the transaction.

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pub fn rollback(self) -> DbResult<()>

Roll back a rejected purpose mutation and report any storage failure.

§Errors

Returns an error when SQLite cannot roll the transaction back.

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impl<'connection> !RefUnwindSafe for PurposeMutationTransaction<'connection>

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impl<'connection> !Send for PurposeMutationTransaction<'connection>

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impl<'connection> !Sync for PurposeMutationTransaction<'connection>

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impl<'connection> !UnwindSafe for PurposeMutationTransaction<'connection>

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impl<'connection> Freeze for PurposeMutationTransaction<'connection>

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impl<'connection> Unpin for PurposeMutationTransaction<'connection>

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impl<'connection> UnsafeUnpin for PurposeMutationTransaction<'connection>

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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

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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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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.