javax.servlet.http
Class HttpSessionBindingEvent
java.lang.Object
|
+--java.util.EventObject
|
+--javax.servlet.http.HttpSessionEvent
|
+--javax.servlet.http.HttpSessionBindingEvent
- 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
Fields inherited from class java.util.EventObject |
source |
Constructor Summary |
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 |
java.lang.String |
getName()
Returns the name with which the attribute is bound to or
unbound from the session. |
HttpSession |
getSession()
Return 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 |
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 unboundname
- 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 unboundname
- the name with which the object is bound or unbound- See Also:
getName()
,
getSession()
getSession
public HttpSession getSession()
- Return the session that changed.
- Overrides:
- getSession in class HttpSessionEvent
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.
If the attribute was added (or bound), this is the value of the attribute. If the attrubute 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