javax.servlet
Interface  ServletContextAttributeListener
- public abstract interface ServletContextAttributeListener- extends java.util.EventListener
Implementations of this interface recieve notifications of
 changes to the attribute list on the servlet context of a web application. 
 To recieve notification events, the implementation class
 must be configured in the deployment descriptor for the web application.
- Since: 
- v 2.3
- See Also: 
- ServletContextAttributeEvent
 
attributeAdded
public void attributeAdded(ServletContextAttributeEvent scab)
- Notification that a new attribute was added to the servlet context. Called after the attribute is added.- 
 
attributeRemoved
public void attributeRemoved(ServletContextAttributeEvent scab)
- Notification that an existing attribute has been remved from the servlet context. Called after the attribute is removed.- 
 
attributeReplaced
public void attributeReplaced(ServletContextAttributeEvent scab)
- Notification that an attribute on the servlet context has been replaced. Called after the attribute is replaced.-