NotificationFilterSupport (Java Platform SE 6)
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Java™ PlatformStandard Ed. 6
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javax.management
Class NotificationFilterSupport
java.lang.Object
javax.management.NotificationFilterSupport
All Implemented Interfaces: Serializable, NotificationFilter
Direct Known Subclasses: MBeanServerNotificationFilter
public class NotificationFilterSupportextends Objectimplements NotificationFilter
Provides an implementation of the NotificationFilter interface.
The filtering is performed on the notification type attribute.
Manages a list of enabled notification types.
A method allows users to enable/disable as many notification types as required.
Then, before sending a notification to a listener registered with a filter,
the notification broadcaster compares this notification type with all notification types
enabled by the filter. The notification will be sent to the listener
only if its filter enables this notification type.
Example:
NotificationFilterSupport myFilter = new NotificationFilterSupport();
myFilter.enableType("my_example.my_type");
myBroadcaster.addListener(myListener, myFilter, null);
The listener myListener will only receive notifications the type of which equals/starts with "my_example.my_type".
Since:
1.5
See Also:NotificationBroadcaster.addNotificationListener(javax.management.NotificationListener, javax.management.NotificationFilter, java.lang.Object),
Serialized Form
Constructor Summary
NotificationFilterSupport()
Method Summary
void
disableAllTypes()
Disables all notification types.
void
disableType(String prefix)
Removes the given prefix from the prefix list.
void
enableType(String prefix)
Enables all the notifications the type of which starts with the specified prefix
to be sent to the listener.
Vector<String>
getEnabledTypes()
Gets all the enabled notification types for this filter.
boolean
isNotificationEnabled(Notification notification)
Invoked before sending the specified notification to the listener.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
NotificationFilterSupport
public NotificationFilterSupport()
Method Detail
isNotificationEnabled
public boolean isNotificationEnabled(Notification notification)
Invoked before sending the specified notification to the listener.
This filter compares the type of the specified notification with each enabled type.
If the notification type matches one of the enabled types,
the notification should be sent to the listener and this method returns true.
Specified by:isNotificationEnabled in interface NotificationFilter
Parameters:notification - The notification to be sent.
Returns:true if the notification should be sent to the listener, false otherwise.
enableType
public void enableType(String prefix)
throws IllegalArgumentException
Enables all the notifications the type of which starts with the specified prefix
to be sent to the listener.
If the specified prefix is already in the list of enabled notification types,
this method has no effect.
Example:
// Enables all notifications the type of which starts with "my_example" to be sent.
myFilter.enableType("my_example");
// Enables all notifications the type of which is "my_example.my_type" to be sent.
myFilter.enableType("my_example.my_type");
Note that:
myFilter.enableType("my_example.*");
will no match any notification type.
Parameters:prefix - The prefix.
Throws:
IllegalArgumentException - The prefix parameter is null.
disableType
public void disableType(String prefix)
Removes the given prefix from the prefix list.
If the specified prefix is not in the list of enabled notification types,
this method has no effect.
Parameters:prefix - The prefix.
disableAllTypes
public void disableAllTypes()
Disables all notification types.
getEnabledTypes
public Vector<String> getEnabledTypes()
Gets all the enabled notification types for this filter.
Returns:The list containing all the enabled notification types.
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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