InTransaction (guicey-jdbi3 7.1.1 API)

```
@Retention(RUNTIME)
@Target({TYPE,METHOD})
public @interface InTransaction
```
Annotation for unit of work and transaction declaration. Code executed under the scope of annotation will share the same transaction (and handle).
Use on class to mark all methods as transactional.
Support nesting: nested annotated elements will participate in outer transaction (and so exceptions will rollback entire transaction). If nested transaction configuration contradict with ongoing transaction then exception will be thrown (e.g. different isolation level or write required under read only transaction).
NOTE: jdbi transaction annotation (Transaction) is not used to avoid internal jdbi transaction handling mechanism which may contradict with guice-central transactional mechanism (because simply jdbi is not aware of it and did not expect anyone to manage transaction instead).

Since:

31.08.2018

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`boolean`	`readOnly`	Set the connection readOnly property before the transaction starts, and restore it before it returns.
`org.jdbi.v3.core.transaction.TransactionIsolationLevel`	`value`

- Element Detail
  - value
```
org.jdbi.v3.core.transaction.TransactionIsolationLevel value
```
    Returns:
    
    the transaction isolation level. If not specified, invoke with the default isolation level.
    
    Default:
    
    org.jdbi.v3.core.transaction.TransactionIsolationLevel.UNKNOWN
- - readOnly
```
boolean readOnly
```
    Set the connection readOnly property before the transaction starts, and restore it before it returns. Databases may use this as a performance or concurrency hint.
    
    Returns:
    
    whether the transaction is read only
    
    Default:
    
    false