Struct TransactionOptions 

#[non_exhaustive]
pub struct TransactionOptions {
    pub isolation_level: Option<IsolationLevel>,
    pub read_only: Option<bool>,
    pub deferrable: Option<bool>,
}

Options for beginning a transaction.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

isolation_level: Option<IsolationLevel>

Desired isolation level.

read_only: Option<bool>

true for read-only, false for read-write, None to omit.

deferrable: Option<bool>

true for deferrable (only valid with SERIALIZABLE and READ ONLY).

Implementations

impl TransactionOptions

pub fn new() -> Self

Create a new TransactionOptions with all fields set to None.

pub fn isolation_level(self, level: IsolationLevel) -> Self

Set the isolation level.

pub fn read_only(self, read_only: bool) -> Self

Set read-only mode.

pub fn deferrable(self, deferrable: bool) -> Self

Set deferrable mode.

pub fn to_begin_sql(&self) -> String

Build the BEGIN ... SQL statement from these options.

Trait Implementations

impl Clone for TransactionOptions

fn clone(&self) -> TransactionOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TransactionOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TransactionOptions

fn default() -> TransactionOptions

Returns the “default value” for a type.