Module java.management
Package javax.management

# Class AttributeChangeNotificationFilter

java.lang.Object
javax.management.AttributeChangeNotificationFilter

All Implemented Interfaces:
  `Serializable`, `NotificationFilter`

public class AttributeChangeNotificationFilter extends Object implements NotificationFilter
This class implements of the `NotificationFilter` interface for the `attribute change notification`. The filtering is performed on the name of the observed attribute.

It manages a list of enabled attribute names. A method allows users to enable/disable as many attribute names as required.

Since:
  1.5
See Also:
  - Serialized Form

## Constructor Summary

Constructors
Constructor
Description
`AttributeChangeNotificationFilter()`
Constructs an `AttributeChangeNotificationFilter`.

## Method Summary

Modifier and Type
Method
Description
`void`
`disableAllAttributes()`
Disables all the attribute names.
`void`
`disableAttribute(String name)`
Disables all the attribute change notifications the attribute name of which equals the specified attribute name to be sent to the listener.
`void`
`enableAttribute(String name)`
Enables all the attribute change notifications the attribute name of which equals the specified name to be sent to the listener.
`Vector<String>`
`getEnabledAttributes()`
Gets all the enabled attribute names for this filter.
`boolean`
`isNotificationEnabled(Notification notification)`
Invoked before sending the specified notification to the listener.

### Methods declared in class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

## Constructor Details

### AttributeChangeNotificationFilter

public AttributeChangeNotificationFilter()
Constructs an `AttributeChangeNotificationFilter`.

## Method Details

### isNotificationEnabled

public boolean isNotificationEnabled(Notification notification)
Invoked before sending the specified notification to the listener.
This filter compares the attribute name of the specified attribute change notification with each enabled attribute name. If the attribute name equals one of the enabled attribute names, the notification must be sent to the listener and this method returns `true`.

Specified by:
  `isNotificationEnabled` in interface `NotificationFilter`
Parameters:
  `notification` - The attribute change notification to be sent.
Returns:
  `true` if the notification has to be sent to the listener, `false` otherwise.

### enableAttribute

public void enableAttribute(String name) throws IllegalArgumentException
Enables all the attribute change notifications the attribute name of which equals the specified name to be sent to the listener.
If the specified name is already in the list of enabled attribute names, this method has no effect.

Parameters:
  `name` - The attribute name.
Throws:
  `IllegalArgumentException` - The attribute name parameter is null.

### disableAttribute

public void disableAttribute(String name)
Disables all the attribute change notifications the attribute name of which equals the specified attribute name to be sent to the listener.
If the specified name is not in the list of enabled attribute names, this method has no effect.

Parameters:
  `name` - The attribute name.

### disableAllAttributes

public void disableAllAttributes()
Disables all the attribute names.

### getEnabledAttributes

public Vector<String> getEnabledAttributes()
Gets all the enabled attribute names for this filter.

Returns:
  The list containing all the enabled attribute names.