Package javax.servlet
Interface ServletContextAttributeListener
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- All Superinterfaces:
java.util.EventListener
- All Known Implementing Classes:
DecoratingListener
,ManagedAttributeListener
public interface ServletContextAttributeListener extends java.util.EventListener
Implementations of this interface receive notifications of changes to the attribute list on the servlet context of a web application. To receive notification events, the implementation class must be configured in the deployment descriptor for the web application.- Since:
- v 2.3
- See Also:
ServletContextAttributeEvent
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
attributeAdded(ServletContextAttributeEvent scae)
Notification that a new attribute was added to the servlet context.void
attributeRemoved(ServletContextAttributeEvent scae)
Notification that an existing attribute has been removed from the servlet context.void
attributeReplaced(ServletContextAttributeEvent scae)
Notification that an attribute on the servlet context has been replaced.
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Method Detail
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attributeAdded
void attributeAdded(ServletContextAttributeEvent scae)
Notification that a new attribute was added to the servlet context. Called after the attribute is added.- Parameters:
scae
- Information about the new attribute
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attributeRemoved
void attributeRemoved(ServletContextAttributeEvent scae)
Notification that an existing attribute has been removed from the servlet context. Called after the attribute is removed.- Parameters:
scae
- Information about the removed attribute
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attributeReplaced
void attributeReplaced(ServletContextAttributeEvent scae)
Notification that an attribute on the servlet context has been replaced. Called after the attribute is replaced.- Parameters:
scae
- Information about the replaced attribute
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