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## javax.naming.event
Interface ObjectChangeListener

All Superinterfaces:
  EventListener, NamingListener

public interface ObjectChangeListener
extends NamingListener

Specifies the method that a listener of a `NamingEvent` with event type of `OBJECT_CHANGED` must implement.

An `OBJECT_CHANGED` event type is fired when (the contents of) an object has changed. This might mean that its attributes have been modified, added, or removed, and/or that the object itself has been replaced. How the object has changed can be determined by examining the `NamingEvent`'s old and new bindings.

A listener interested in `OBJECT_CHANGED` event types must:

1. Implement this interface and its method (`objectChanged()`)
2. Implement `NamingListener.namingExceptionThrown()` so that it will be notified of exceptions thrown while attempting to collect information about the events.
3. Register with the source using the source's `addNamingListener()` method.

A listener that wants to be notified of namespace change events should also implement the `NamespaceChangeListener` interface.

Since:
  1.3
See Also:
  `NamingEvent`, `NamespaceChangeListener`, `EventContext`, `EventDirContext`

Method Summary
`void` | `objectChanged(NamingEvent evt)` Called when an object has been changed.

Methods inherited from interface javax.naming.event.NamingListener
`namingExceptionThrown`

Method Detail

### objectChanged

    public void objectChanged(NamingEvent evt)

  Called when an object has been changed.

  The binding of the changed object can be obtained using `evt.getNewBinding()`. Its old binding (before the change) can be obtained using `evt.getOldBinding()`.

  Parameters:
    `evt` - The nonnull naming event.
  See Also:
    `NamingEvent.OBJECT_CHANGED`

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.