pub struct ClientSession<'a> { /* private fields */ }
Expand description

A PoloDB client session. This struct represents a logical session used for ordering sequential operations. To create a ClientSession, call start_session on a Database.

Implementations§

source§

impl<'a> ClientSession<'a>

source

pub fn start_transaction(&mut self, ty: Option<TransactionType>) -> DbResult<()>

Manually start a transaction. There are three types of transaction.

  • None: Auto transaction
  • Some(Transaction::Write): Write transaction
  • Some(Transaction::Read): Read transaction

When you pass None to type parameter. The PoloDB will go into auto mode. The PoloDB will go into read mode firstly, once the users execute write operations(insert/update/delete), the DB will turn into write mode.

source

pub fn commit_transaction(&mut self) -> DbResult<()>

source

pub fn abort_transaction(&mut self) -> DbResult<()>

Trait Implementations§

source§

impl Drop for ClientSession<'_>

source§

fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

§

impl<'a> RefUnwindSafe for ClientSession<'a>

§

impl<'a> Send for ClientSession<'a>

§

impl<'a> Sync for ClientSession<'a>

§

impl<'a> Unpin for ClientSession<'a>

§

impl<'a> UnwindSafe for ClientSession<'a>

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
§

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

§

fn vzip(self) -> V