H2TransactionListener

```
public interface H2TransactionListener
```
A class that implements this interface can listen to transaction begin and end events.

Methods
Modifier and Type	Method and Description
`void`	`onBegin()` The transaction has been started.
`void`	`onCommit()` The transaction will be committed.
`void`	`onRollback()` The transaction will be rolled back.

Interface H2TransactionListener