CallbackHandler (DataNucleus Core 5.1.13-SNAPSHOT API)

All Known Implementing Classes:

NullCallbackHandler
```
public interface CallbackHandler
```
CallBack handlers receive notification of events on persistent objects. Handlers are responsible for invoking event listeners/callback methods on Callback or Listener implementations. When a validation handler is set, the prePersist, preStore and preDelete callbacks will be routed through to this validation handler.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`void`	`addListener(Object listener, Class[] classes)` Adds a new listener to this handler.
`void`	`close()` Clear any objects to release resources.
`default void`	`postAttach(Object pc, Object detachedPC)` Callback after the object is attached.
`default void`	`postClear(Object pc)` Callback after the fields of the object are cleared.
`default void`	`postCreate(Object pc)` Callback after the object has been created.
`default void`	`postDelete(Object pc)` Callback after the object is deleted.
`default void`	`postDetach(Object pc, Object detachedPC)` Callback after the object is detached.
`default void`	`postDirty(Object pc)` Callback after the object is made dirty.
`default void`	`postLoad(Object pc)` Callback after the fields of the object are loaded.
`default void`	`postRefresh(Object pc)` Callback after the fields of the object are refreshed.
`default void`	`postStore(Object pc)` Callback after the object is stored.
`default void`	`preAttach(Object detachedPC)` Callback before the object is attached.
`default void`	`preClear(Object pc)` Callback before the fields of the object are cleared.
`default void`	`preDelete(Object pc)` Callback before the object is deleted.
`default void`	`preDetach(Object pc)` Callback before the object is detached.
`default void`	`preDirty(Object pc)` Callback before the object is made dirty.
`default void`	`prePersist(Object pc)` Callback before the object is persisted (just before the lifecycle state change).
`default void`	`preStore(Object pc)` Callback before the object is stored.
`void`	`removeListener(Object listener)` Remove a listener for this handler.
`void`	`setBeanValidationHandler(BeanValidationHandler handler)` Method to set the handler for bean validation.

- Method Detail
  - setBeanValidationHandler
```
void setBeanValidationHandler(BeanValidationHandler handler)
```
    Method to set the handler for bean validation.
    
    Parameters:
    
    handler - Handler for bean validation
  - postCreate
```
default void postCreate(Object pc)
```
    Callback after the object has been created.
    
    Parameters:
    
    pc - The Object
  - prePersist
```
default void prePersist(Object pc)
```
    Callback before the object is persisted (just before the lifecycle state change).
    
    Parameters:
    
    pc - The Object
  - preStore
```
default void preStore(Object pc)
```
    Callback before the object is stored.
    
    Parameters:
    
    pc - The Object
  - postStore
```
default void postStore(Object pc)
```
    Callback after the object is stored.
    
    Parameters:
    
    pc - The Object
  - preClear
```
default void preClear(Object pc)
```
    Callback before the fields of the object are cleared.
    
    Parameters:
    
    pc - The Object
  - postClear
```
default void postClear(Object pc)
```
    Callback after the fields of the object are cleared.
    
    Parameters:
    
    pc - The Object
  - preDelete
```
default void preDelete(Object pc)
```
    Callback before the object is deleted.
    
    Parameters:
    
    pc - The Object
  - postDelete
```
default void postDelete(Object pc)
```
    Callback after the object is deleted.
    
    Parameters:
    
    pc - The Object
  - preDirty
```
default void preDirty(Object pc)
```
    Callback before the object is made dirty.
    
    Parameters:
    
    pc - The Object
  - postDirty
```
default void postDirty(Object pc)
```
    Callback after the object is made dirty.
    
    Parameters:
    
    pc - The Object
  - postLoad
```
default void postLoad(Object pc)
```
    Callback after the fields of the object are loaded.
    
    Parameters:
    
    pc - The Object
  - postRefresh
```
default void postRefresh(Object pc)
```
    Callback after the fields of the object are refreshed.
    
    Parameters:
    
    pc - The Object
  - preDetach
```
default void preDetach(Object pc)
```
    Callback before the object is detached.
    
    Parameters:
    
    pc - The Object
  - postDetach
```
default void postDetach(Object pc,
                        Object detachedPC)
```
    Callback after the object is detached.
    
    Parameters:
    
    pc - The Object
    
    detachedPC - The detached object
  - preAttach
```
default void preAttach(Object detachedPC)
```
    Callback before the object is attached.
    
    Parameters:
    
    detachedPC - The Object
  - postAttach
```
default void postAttach(Object pc,
                        Object detachedPC)
```
    Callback after the object is attached.
    
    Parameters:
    
    pc - The attached Object
    
    detachedPC - The detached object
  - addListener
```
void addListener(Object listener,
                 Class[] classes)
```
    Adds a new listener to this handler.
    
    Parameters:
    
    listener - the listener instance
    
    classes - the persistent classes which events are fired for the listener
  - removeListener
```
void removeListener(Object listener)
```
    Remove a listener for this handler.
    
    Parameters:
    
    listener - the listener instance
  - close
```
void close()
```
    Clear any objects to release resources.

Interface CallbackHandler

Method Summary

Method Detail

setBeanValidationHandler

postCreate

prePersist

preStore

postStore

preClear

postClear

preDelete

postDelete

preDirty

postDirty

postLoad

postRefresh

preDetach

postDetach

preAttach

postAttach

addListener

removeListener

close