EntityEntryExtraState (Hibernate Javadocs)

All Known Implementing Classes:

EntityEntryExtraStateHolder
```
public interface EntityEntryExtraState
```
Navigation methods for extra state objects attached to EntityEntry.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addExtraState(EntityEntryExtraState extraState)`	Attach additional state to the core state of `EntityEntry`
`<T extends EntityEntryExtraState> T`	`getExtraState(Class<T> extraStateType)`	Retrieve additional state by class type or null if no extra state of that type is present.

- Method Detail
  - addExtraState
```
void addExtraState(EntityEntryExtraState extraState)
```
    Attach additional state to the core state of EntityEntry
    Implementations must delegate to the next state or add it as next state if last in line.
  - getExtraState
```
<T extends EntityEntryExtraState> T getExtraState(Class<T> extraStateType)
```
    Retrieve additional state by class type or null if no extra state of that type is present.
    Implementations must return self if they match or delegate discovery to the next state in line.