Top Description Methods
javax.servlet

public Interface ServletRequestAttributeListener

extends EventListener
Imports
java.util.EventListener

Interface for receiving notification events about ServletRequest attribute changes.

Notifications will be generated while the request is within the scope of the web application. A ServletRequest is defined as coming into scope of a web application when it is about to enter the first servlet or filter of the web application, and as going out of scope when it exits the last servlet or the first filter in the chain.

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 2.4

Method Summary

Modifier and TypeMethod and Description
public default void
attributeAdded(ServletRequestAttributeEvent
the ServletRequestAttributeEvent containing the ServletRequest and the name and value of the attribute that was added
srae
)

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

public default void
attributeRemoved(ServletRequestAttributeEvent
the ServletRequestAttributeEvent containing the ServletRequest and the name and value of the attribute that was removed
srae
)

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

public default void
attributeReplaced(ServletRequestAttributeEvent
the ServletRequestAttributeEvent containing the ServletRequest and the name and (old) value of the attribute that was replaced
srae
)

Receives notification that an attribute has been replaced on the ServletRequest.

Method Detail

attributeAddedback to summary
public default void attributeAdded(ServletRequestAttributeEvent srae)

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

Implementation Specification

The default implementation takes no action.

Parameters
srae:ServletRequestAttributeEvent

the ServletRequestAttributeEvent containing the ServletRequest and the name and value of the attribute that was added

attributeRemovedback to summary
public default void attributeRemoved(ServletRequestAttributeEvent srae)

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

Implementation Specification

The default implementation takes no action.

Parameters
srae:ServletRequestAttributeEvent

the ServletRequestAttributeEvent containing the ServletRequest and the name and value of the attribute that was removed

attributeReplacedback to summary
public default void attributeReplaced(ServletRequestAttributeEvent srae)

Receives notification that an attribute has been replaced on the ServletRequest.

Implementation Specification

The default implementation takes no action.

Parameters
srae:ServletRequestAttributeEvent

the ServletRequestAttributeEvent containing the ServletRequest and the name and (old) value of the attribute that was replaced