Struct rocksdb::OptimisticTransactionOptions

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pub struct OptimisticTransactionOptions { /* private fields */ }

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impl OptimisticTransactionOptions

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pub fn new() -> OptimisticTransactionOptions

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pub fn set_snapshot(&mut self, snapshot: bool)

Specifies use snapshot or not.

Default: false.

If a transaction has a snapshot set, the transaction will ensure that any keys successfully written(or fetched via get_for_update) have not been modified outside the transaction since the time the snapshot was set. If a snapshot has not been set, the transaction guarantees that keys have not been modified since the time each key was first written (or fetched via get_for_update).

Using snapshot will provide stricter isolation guarantees at the expense of potentially more transaction failures due to conflicts with other writes.

Calling set_snapshot will not affect the version of Data returned by get methods.

Trait Implementations§

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impl Default for OptimisticTransactionOptions

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Drop for OptimisticTransactionOptions

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl Send for OptimisticTransactionOptions

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impl Sync for OptimisticTransactionOptions

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

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where T: ?Sized,

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fn borrow(&self) -> &T

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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, 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

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

Performs the conversion.