HttpSessionBindingEvent (Servlet 3.1 API Documentation

java.lang.Object
- java.util.EventObject
- - javax.servlet.http.HttpSessionEvent
  - - javax.servlet.http.HttpSessionBindingEvent

All Implemented Interfaces:

java.io.Serializable
```
public class HttpSessionBindingEvent
extends HttpSessionEvent
```
Events of this type are either sent to an object that implements HttpSessionBindingListener when it is bound or unbound from a session, or to a HttpSessionAttributeListener that has been configured in the deployment descriptor when any attribute is bound, unbound or replaced in a session.
The session binds the object by a call to HttpSession.setAttribute and unbinds the object by a call to HttpSession.removeAttribute.

See Also:
HttpSession, HttpSessionBindingListener, HttpSessionAttributeListener, Serialized Form

Field Summary
- Fields inherited from class java.util.EventObject
  source

Constructor Summary

Constructors
Constructor and Description
`HttpSessionBindingEvent(HttpSession session, java.lang.String name)` Constructs an event that notifies an object that it has been bound to or unbound from a session.
`HttpSessionBindingEvent(HttpSession session, java.lang.String name, java.lang.Object value)` Constructs an event that notifies an object that it has been bound to or unbound from a session.

Method Summary

Methods
Modifier and Type	Method and Description
`java.lang.String`	`getName()` Returns the name with which the attribute is bound to or unbound from the session.
`HttpSession`	`getSession()` Get the session that changed.
`java.lang.Object`	`getValue()` Returns the value of the attribute that has been added, removed or replaced.

Methods inherited from class java.util.EventObject
getSource, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - HttpSessionBindingEvent
```
public HttpSessionBindingEvent(HttpSession session,
                       java.lang.String name)
```
    Constructs an event that notifies an object that it has been bound to or unbound from a session. To receive the event, the object must implement HttpSessionBindingListener.
    
    Parameters:
    session - the session to which the object is bound or unbound
    name - the name with which the object is bound or unbound
    See Also:
    getName(), getSession()
  - HttpSessionBindingEvent
```
public HttpSessionBindingEvent(HttpSession session,
                       java.lang.String name,
                       java.lang.Object value)
```
    Constructs an event that notifies an object that it has been bound to or unbound from a session. To receive the event, the object must implement HttpSessionBindingListener.
    
    Parameters:
    session - the session to which the object is bound or unbound
    name - the name with which the object is bound or unbound
    value - the object that is bound or unbound
    See Also:
    getName(), getSession(), getValue()
- Method Detail
  - getSession
```
public HttpSession getSession()
```
    Get the session that changed.
    
    Overrides:
    
    getSession in class HttpSessionEvent
    
    Returns:
    The session that changed
  - getName
```
public java.lang.String getName()
```
    Returns the name with which the attribute is bound to or unbound from the session.
    
    Returns:
    a string specifying the name with which the object is bound to or unbound from the session
  - getValue
```
public java.lang.Object getValue()
```
    Returns the value of the attribute that has been added, removed or replaced.
    
    Returns:
    If the attribute was added (or bound), this is the value of the attribute. If the attribute was removed (or unbound), this is the value of the removed attribute. If the attribute was replaced, this is the old value of the attribute.
    Since:
    
    2.3

Class HttpSessionBindingEvent

Field Summary

Fields inherited from class java.util.EventObject

Constructor Summary

Method Summary

Methods inherited from class java.util.EventObject

Methods inherited from class java.lang.Object

Constructor Detail

HttpSessionBindingEvent

HttpSessionBindingEvent

Method Detail

getSession

getName

getValue