OptimisticLock (Hibernate Javadocs)

```
@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface OptimisticLock
```
Specifies whether mutating the annotated attribute should trigger an increment to the version of the entity instance. Or, if OptimisticLockType.ALL or OptimisticLockType.DIRTY are used, specifies whether the attribute should be included or excluded from the list of checked attributes.
If this annotation is not present, mutating an attribute does cause the version to be incremented.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  boolean excluded
  true if changing the annotated attribute should not cause the version to be incremented.

- Element Detail
  - excluded
```
boolean excluded
```
    true if changing the annotated attribute should not cause the version to be incremented.