Package org.apache.commons.modeler
Class FixedNotificationFilter
java.lang.Object
org.apache.commons.modeler.FixedNotificationFilter
- All Implemented Interfaces:
Serializable
,NotificationFilter
Special NotificationFilter that allows modeler to optimize its notifications.
This class is immutable - after you construct it it'll filter based on
a fixed set of notification names.
The JMX specification requires the filters to be called before the
notifications are sent. We can call this filter well in advance, when
the listener is added. Based on the result we can maintain separate
channels for each notification - and reduce the overhead.
- Author:
- Costin Manolache
- See Also:
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionFixedNotificationFilter
(String[] names) Construct a new filter that accepts only the specified notification names. -
Method Summary
Modifier and TypeMethodDescriptionString[]
getNames()
Return the set of names that are accepted by this filter.boolean
isNotificationEnabled
(Notification notification) Test whether notification enabled for this event.
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Field Details
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names
The set of attribute names that are accepted by this filter. If this list is empty, all attribute names are accepted. -
namesA
String[] namesA
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Constructor Details
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FixedNotificationFilter
Construct a new filter that accepts only the specified notification names.- Parameters:
names
- Names of the notification types
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Method Details
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getNames
Return the set of names that are accepted by this filter. If this filter accepts all attribute names, a zero length array will be returned. -
isNotificationEnabled
Test whether notification enabled for this event. Return true if:
- Either the set of accepted names is empty (implying that all attribute names are of interest) or the set of accepted names includes the name of the attribute in this notification
- Specified by:
isNotificationEnabled
in interfaceNotificationFilter
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