MigrationTransaction class

A transactional execution context. Returned by a MigrationTransactionFactory when the user opts in to automatic transaction wrapping.

The user-provided factory creates one of these per up / down invocation; the runner calls MigrationTransaction.commit on success and MigrationTransaction.rollback on exception.

Constructors

MigrationTransaction({required MigrationExecutor executor, required void commit(), required void rollback()})

Creates a transaction. The executor is the callback the migration body uses to run SQL. The commit / rollback actions are invoked by the runner exactly once per transaction.

const

Properties

commit → void Function()

Commits the transaction. Idempotent — calling it more than once is a no-op (in case the user wraps their own callback logic around the runner).

final

executor → MigrationExecutor

The executor the migration body uses to run SQL statements. Bound to the in-flight transaction.

final

hashCode → int

The hash code for this object.

no setter, inherited

rollback → void Function()

Rolls back the transaction. Idempotent.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited