NullCallbackHandler (DataNucleus Core 5.2.10 API)

java.lang.Object
- org.datanucleus.state.NullCallbackHandler

All Implemented Interfaces:

CallbackHandler
```
public class NullCallbackHandler
extends Object
implements CallbackHandler
```
Callback handler that does nothing. Provided for the case where the user wants to do bulk operations and isn't interested in callbacks.

Constructor Summary

Constructors
Constructor Description

NullCallbackHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addListener(Object listener, Class[] classes)`	Adds a new listener to this handler.
`void`	`close()`	Clear any objects to release resources.
`void`	`removeListener(Object listener)`	Remove a listener for this handler.
`void`	`setBeanValidationHandler(BeanValidationHandler handler)`	Method to set the handler for bean validation.

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

Methods inherited from interface org.datanucleus.state.CallbackHandler
postAttach, postClear, postCreate, postDelete, postDetach, postDirty, postLoad, postRefresh, postStore, preAttach, preClear, preDelete, preDetach, preDirty, prePersist, preStore

- Constructor Detail
  - NullCallbackHandler
```
public NullCallbackHandler()
```
- Method Detail
  - setBeanValidationHandler
```
public void setBeanValidationHandler(BeanValidationHandler handler)
```
    Description copied from interface: CallbackHandler
    
    Method to set the handler for bean validation.
    
    Specified by:
    
    setBeanValidationHandler in interface CallbackHandler
    
    Parameters:
    
    handler - Handler for bean validation
  - addListener
```
public void addListener(Object listener,
                        Class[] classes)
```
    Description copied from interface: CallbackHandler
    
    Adds a new listener to this handler.
    
    Specified by:
    
    addListener in interface CallbackHandler
    
    Parameters:
    
    listener - the listener instance
    
    classes - the persistent classes which events are fired for the listener
  - removeListener
```
public void removeListener(Object listener)
```
    Description copied from interface: CallbackHandler
    
    Remove a listener for this handler.
    
    Specified by:
    
    removeListener in interface CallbackHandler
    
    Parameters:
    
    listener - the listener instance
  - close
```
public void close()
```
    Description copied from interface: CallbackHandler
    
    Clear any objects to release resources.
    
    Specified by:
    
    close in interface CallbackHandler