Top Description Methods
javax.servlet

public Interface ServletContextAttributeListener

extends EventListener
Imports
java.util.EventListener
Interface for receiving notification events about ServletContext attribute changes.

In order to receive these notification events, the implementation class must be either declared in the deployment descriptor of the web application, annotated with javax.servlet.annotation.WebListener, or registered via one of the addListener methods defined on ServletContext.

The order in which implementations of this interface are invoked is unspecified.

Since
Servlet 2.3
See Also
ServletContextAttributeEvent

Method Summary

Modifier and TypeMethod and Description
public default void
attributeAdded(ServletContextAttributeEvent
the ServletContextAttributeEvent containing the ServletContext to which the attribute was added, along with the attribute name and value
event)

Receives notification that an attribute has been added to the ServletContext.

public default void
attributeRemoved(ServletContextAttributeEvent
the ServletContextAttributeEvent containing the ServletContext from which the attribute was removed, along with the attribute name and value
event)

Receives notification that an attribute has been removed from the ServletContext.

public default void
attributeReplaced(ServletContextAttributeEvent event)

Method Detail

attributeAddedback to summary
public default void attributeAdded(ServletContextAttributeEvent event)

Receives notification that an attribute has been added to the ServletContext.

Implementation Specification

The default implementation takes no action.

Parameters
event:ServletContextAttributeEvent

the ServletContextAttributeEvent containing the ServletContext to which the attribute was added, along with the attribute name and value

attributeRemovedback to summary
public default void attributeRemoved(ServletContextAttributeEvent event)

Receives notification that an attribute has been removed from the ServletContext.

Implementation Specification

The default implementation takes no action.

Parameters
event:ServletContextAttributeEvent

the ServletContextAttributeEvent containing the ServletContext from which the attribute was removed, along with the attribute name and value

attributeReplacedback to summary
public default void attributeReplaced(ServletContextAttributeEvent event)