io.requery

Interface Transaction

All Superinterfaces:

AutoCloseable

public interface Transaction
extends AutoCloseable

Represents a transaction. Obtained from Transactionable.transaction().

Method Summary

Modifier and Type	Method and Description
boolean	active()
Transaction	begin() Begins the transaction.
Transaction	begin(TransactionIsolation isolation) Begins the transaction.
void	close() Closes the transaction.
void	commit() Commit the current transaction.
void	rollback() Rollback the transaction.

Method Detail

begin

Transaction begin()

Begins the transaction. This method can only be called if a transaction is not already {#active} otherwise an IllegalStateException will be thrown.

Returns:

the current transaction instance. The return value can be used in a try-with block.

begin

Transaction begin(TransactionIsolation isolation)

Begins the transaction. This method can only be called if a transaction is not already {#active} otherwise an IllegalStateException will be thrown.

Parameters:

isolation - desired isolation level for the transaction (null for the default).

Returns:

the current transaction instance. The return value can be used in a try-with block.

commit

void commit()

Commit the current transaction.

rollback

void rollback()

Rollback the transaction.

active

boolean active()

Returns:

true if the transaction is currently active, (begin()) was called and commit() has not been called, false otherwise.

close

void close()

Closes the transaction. In rollback mode if commit was not called successfully then a rollback operation will be performed automatically.

Specified by:

close in interface AutoCloseable