Struct TransactionConfig 

pub struct TransactionConfig { /* private fields */ }

Options applied when starting a PostgreSQL transaction.

The default leaves every choice to the server. Use Self::builder when choices are known statically; its typestate only exposes DEFERRABLE for SERIALIZABLE READ ONLY transactions, the combination where PostgreSQL gives the option meaning.

use drizzle_postgres::TransactionConfig;

// DEFERRABLE only has meaning for a serializable, read-only transaction.
let _ = TransactionConfig::builder()
    .serializable()
    .read_write()
    .deferrable();

Implementations

impl TransactionConfig

pub const fn new() -> Self

Uses server defaults for every option.

pub const fn builder() -> ConfigBuilder

Starts a typestated transaction configuration.

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

Selects an isolation level supplied at runtime.

pub const fn access_mode(self, mode: AccessMode) -> Self

Selects an access mode supplied at runtime.

pub const fn deferrable(self) -> Self

Requests a deferrable transaction for runtime-derived configuration.

PostgreSQL only gives DEFERRABLE meaning for a SERIALIZABLE READ ONLY transaction, so this establishes that valid combination. Prefer the typestated builder when the choices are known in code.

pub const fn isolation(&self) -> Option<IsolationLevel>

Configured isolation level, or None to use the server default.

pub const fn access(&self) -> Option<AccessMode>

Configured access mode, or None to use the server default.

pub const fn is_deferrable(&self) -> bool

Whether DEFERRABLE was requested.

Trait Implementations

impl Clone for TransactionConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TransactionConfig

impl Debug for TransactionConfig

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

Formats the value using the given formatter.

impl Default for TransactionConfig

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TransactionConfig

impl From<PostgresTransactionType> for TransactionConfig

fn from(tx_type: PostgresTransactionType) -> Self

Converts to this type from the input type.

impl PartialEq for TransactionConfig

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TransactionConfig