Package jakarta.servlet

Interface ServletRequestAttributeListener

All Superinterfaces:

EventListener

public interface ServletRequestAttributeListener
extends EventListener

A ServletRequestAttributeListener can be implemented by the developer interested in being notified of request attribute changes. Notifications will be generated while the request is within the scope of the web application in which the listener is registered. A request is defined as coming into scope when it is about to enter the first servlet or filter in each web application, as going out of scope when it exits the last servlet or the first filter in the chain.

Since:

Servlet 2.4

Method Summary

Modifier and Type	Method	Description
default void	attributeAdded(ServletRequestAttributeEvent srae)	Notification that a new attribute was added to the servlet request.
default void	attributeRemoved(ServletRequestAttributeEvent srae)	Notification that an existing attribute has been removed from the servlet request.
default void	attributeReplaced(ServletRequestAttributeEvent srae)	Notification that an attribute was replaced on the servlet request.

Method Details

attributeAdded

default void attributeAdded(ServletRequestAttributeEvent srae)

Notification that a new attribute was added to the servlet request. Called after the attribute is added. The default implementation is a NO-OP.

Parameters:

srae - Information about the new request attribute

attributeRemoved

default void attributeRemoved(ServletRequestAttributeEvent srae)

Notification that an existing attribute has been removed from the servlet request. Called after the attribute is removed. The default implementation is a NO-OP.

Parameters:

srae - Information about the removed request attribute

attributeReplaced

default void attributeReplaced(ServletRequestAttributeEvent srae)

Notification that an attribute was replaced on the servlet request. Called after the attribute is replaced. The default implementation is a NO-OP.

Parameters:

srae - Information about the replaced request attribute