[−][src]Struct qldb::Transaction
Every query in QLDB is within a transaction. Ideally you will interact with this object via the method QLDBClient::transaction_within.
Implementations
impl Transaction[src]
pub fn query(&self, statement: &str) -> QueryBuilder[src]
Sends a query to QLDB. It will return an Array of IonValues already decoded. Parameters need to be provided using IonValue.
pub async fn commit<'_>(&'_ self) -> QLDBResult<()>[src]
pub async fn rollback<'_>(&'_ self) -> QLDBResult<()>[src]
Cancels the transaction. Once rollback is called the transaction becomes invalid. Subsequent calls to rollback or commit (internally) won't have any effect.
It fails is the transaction is already committed. For
a rollback that doesn't fail when already committed you can
check the silent_rollback method.
pub async fn silent_rollback<'_>(&'_ self) -> QLDBResult<()>[src]
Cancels the transaction but it doesn't fails is the transaction was already committed. This is useful for auto-closing scenarios where you just want to rollback always when there is a drop or something similar.
Once rollback is called the transaction becomes invalid. Subsequent calls to rollback or commit (internally) won't have any effect.
Trait Implementations
impl Clone for Transaction[src]
pub fn clone(&self) -> Transaction[src]
pub fn clone_from(&mut self, source: &Self)1.0.0[src]
Auto Trait Implementations
impl !RefUnwindSafe for Transaction[src]
impl Send for Transaction[src]
impl Sync for Transaction[src]
impl Unpin for Transaction[src]
impl !UnwindSafe for Transaction[src]
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T> Instrument for T[src]
pub fn instrument(self, span: Span) -> Instrumented<Self>[src]
pub fn in_current_span(self) -> Instrumented<Self>[src]
impl<T> Instrument for T[src]
pub fn instrument(self, span: Span) -> Instrumented<Self>[src]
pub fn in_current_span(self) -> Instrumented<Self>[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,