TransactionObserver (hibernate-core JavaDocs)

```
public interface TransactionObserver
```
Observer of internal transaction events.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`afterBegin()`	Callback for processing the beginning of a transaction.
`void`	`afterCompletion(boolean successful, boolean delayed)`	Callback for processing the last phase of transaction completion.
`void`	`beforeCompletion()`	Callback for processing the initial phase of transaction completion.

- Method Detail
  - afterBegin
```
void afterBegin()
```
    Callback for processing the beginning of a transaction.
    Do not rely on this being called as the transaction may be started in a manner other than through the Transaction API.
  - beforeCompletion
```
void beforeCompletion()
```
    Callback for processing the initial phase of transaction completion.
  - afterCompletion
```
void afterCompletion(boolean successful,
                     boolean delayed)
```
    Callback for processing the last phase of transaction completion.
    
    Parameters:
    
    successful - Was the transaction successful?