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TransactionBuilder

Struct TransactionBuilder 

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pub struct TransactionBuilder<'db> { /* private fields */ }
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Builds a transaction with a specific isolation level.

Created by Database::transaction_with.

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impl<'db> TransactionBuilder<'db>

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pub fn deferred(self) -> Self

Uses BEGIN DEFERRED (the default).

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pub fn immediate(self) -> Self

Uses BEGIN IMMEDIATE, acquiring a write lock before any statement runs.

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pub fn exclusive(self) -> Self

Uses BEGIN EXCLUSIVE, blocking all other database access.

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pub fn read_uncommitted(self) -> Self

Requests the standard SQL READ UNCOMMITTED isolation level.

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pub fn read_committed(self) -> Self

Requests the standard SQL READ COMMITTED isolation level.

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pub fn repeatable_read(self) -> Self

Requests the standard SQL REPEATABLE READ isolation level.

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pub fn serializable(self) -> Self

Requests the standard SQL SERIALIZABLE isolation level (the strictest).

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pub async fn begin(self) -> Result<Transaction>

Opens the transaction with the configured isolation level.

§Errors

Returns an error if no connection is available or the BEGIN statement fails (for example, BEGIN EXCLUSIVE when another connection holds a lock and the busy timeout expires).

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pub async fn run<F, R>(self, f: F) -> Result<R>
where F: for<'a> FnOnce(&'a Transaction) -> BoxFuture<'a, Result<R>>, R: Send + 'static,

Runs f inside a transaction opened with the configured isolation level, committing on Ok and rolling back on Err.

§Errors

Returns an error if the BEGIN statement fails, if f returns an error, or if COMMIT fails.

Auto Trait Implementations§

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impl<'db> !RefUnwindSafe for TransactionBuilder<'db>

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impl<'db> !UnwindSafe for TransactionBuilder<'db>

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impl<'db> Freeze for TransactionBuilder<'db>

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impl<'db> Send for TransactionBuilder<'db>

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impl<'db> Sync for TransactionBuilder<'db>

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impl<'db> Unpin for TransactionBuilder<'db>

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impl<'db> UnsafeUnpin for TransactionBuilder<'db>

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