PreUpdateEvent (Hibernate Javadocs)

java.lang.Object
- org.hibernate.event.spi.AbstractEvent
- - org.hibernate.event.spi.AbstractPreDatabaseOperationEvent
  - - org.hibernate.event.spi.PreUpdateEvent

All Implemented Interfaces:

Serializable
```
public class PreUpdateEvent
extends AbstractPreDatabaseOperationEvent
```
Represents a pre-update event, which occurs just prior to performing the update of an entity in the database.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`PreUpdateEvent(Object entity, Object id, Object[] state, Object[] oldState, EntityPersister persister, EventSource source)`	Constructs an event containing the pertinent information.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object[]`	`getOldState()`	The old state of the entity at the time it was last loaded from the database; can be null in the case of detached entities.
`Object[]`	`getState()`	Retrieves the state to be used in the update.

Methods inherited from class org.hibernate.event.spi.AbstractPreDatabaseOperationEvent
getEntity, getFactory, getId, getPersister

Methods inherited from class org.hibernate.event.spi.AbstractEvent
getSession

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PreUpdateEvent
```
public PreUpdateEvent(Object entity,
                      Object id,
                      Object[] state,
                      Object[] oldState,
                      EntityPersister persister,
                      EventSource source)
```
    Constructs an event containing the pertinent information.
    
    Parameters:
    
    entity - The entity to be updated.
    
    id - The id of the entity to use for updating.
    
    state - The state to be updated.
    
    oldState - The state of the entity at the time it was loaded from the database.
    
    persister - The entity's persister.
    
    source - The session from which the event originated.
- Method Detail
  - getState
```
public Object[] getState()
```
    Retrieves the state to be used in the update.
    
    Returns:
    
    The current state.
  - getOldState
```
public Object[] getOldState()
```
    The old state of the entity at the time it was last loaded from the database; can be null in the case of detached entities.
    
    Returns:
    
    The loaded state, or null.