Package javax.servlet

Interface ServletContextAttributeListener

  • All Superinterfaces:
    java.util.EventListener

    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:
    Servlet 2.3
    See Also:
    ServletContextAttributeEvent
    • Method Detail

      • attributeAdded

        default void attributeAdded​(ServletContextAttributeEvent scae)
        Notification that a new attribute was added to the servlet context. Called after the attribute is added. The default implementation is a NO-OP.
        Parameters:
        scae - Information about the new attribute
      • attributeRemoved

        default void attributeRemoved​(ServletContextAttributeEvent scae)
        Notification that an existing attribute has been removed from the servlet context. Called after the attribute is removed. The default implementation is a NO-OP.
        Parameters:
        scae - Information about the removed attribute
      • attributeReplaced

        default void attributeReplaced​(ServletContextAttributeEvent scae)
        Notification that an attribute on the servlet context has been replaced. Called after the attribute is replaced. The default implementation is a NO-OP.
        Parameters:
        scae - Information about the replaced attribute