api-docs / org.ktorm.global / useTransaction
useTransaction
inline fun <T> useTransaction(
isolation: TransactionIsolation? = null,
func: (Transaction) -> T
): T
(source code)Deprecated: ktorm-global will be removed in the future, please migrate to the standard API.
Execute the specific callback function in a transaction of Database.Companion.global and returns its result if the
execution succeeds, otherwise, if the execution fails, the transaction will be rollback.
Note:
- Any exceptions thrown in the callback function can trigger a rollback.
- This function is reentrant, so it can be called nested. However, the inner calls don’t open new transactions
but share the same ones with outers. - Since version 3.3.0, the default isolation has changed to null (stands for the default isolation level of the
underlying datastore), not TransactionIsolation.REPEATABLE_READ anymore.
Parameters
isolation
- transaction isolation, null for the default isolation level of the underlying datastore.
func
- the executed callback function.
Return
the result of the callback function.
See Also