org.apache.commons.modeler
Class BaseAttributeFilter
java.lang.Object
org.apache.commons.modeler.BaseAttributeFilter
- NotificationFilter
public class BaseAttributeFilter
extends java.lang.Object
implements NotificationFilter
Implementation of NotificationFilter
for attribute change
notifications. This class is used by BaseModelMBean
to
construct attribute change notification event filters when a filter is not
supplied by the application.
$Revision: 1.3 $ $Date: 2003/07/20 07:35:12 $private HashSet | names - The set of attribute names that are accepted by this filter.
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BaseAttributeFilter(String name) - Construct a new filter that accepts only the specified attribute
name.
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void | addAttribute(String name) - Add a new attribute name to the set of names accepted by this filter.
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void | clear() - Clear all accepted names from this filter, so that it will accept
all attribute names.
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String[] | getNames() - Return the set of names that are accepted by this filter.
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boolean | isNotificationEnabled(Notification notification) - Test whether notification enabled for this event.
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void | removeAttribute(String name) - Remove an attribute name from the set of names accepted by this
filter.
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names
private HashSet names
The set of attribute names that are accepted by this filter. If this
list is empty, all attribute names are accepted.
BaseAttributeFilter
public BaseAttributeFilter(String name)
Construct a new filter that accepts only the specified attribute
name.
name
- Name of the attribute to be accepted by this filter, or
null
to accept all attribute names
addAttribute
public void addAttribute(String name)
Add a new attribute name to the set of names accepted by this filter.
name
- Name of the attribute to be accepted
clear
public void clear()
Clear all accepted names from this filter, so that it will accept
all attribute names.
getNames
public String[] 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
public boolean isNotificationEnabled(Notification notification)
Test whether notification enabled for this event.
Return true if:
- This is an attribute change notification
- 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
removeAttribute
public void removeAttribute(String name)
Remove an attribute name from the set of names accepted by this
filter.
name
- Name of the attribute to be removed
Copyright (c) 2001-2003 - Apache Software Foundation