com.vaadin.server

Interface WrappedSession

All Superinterfaces:

Serializable

All Known Implementing Classes:

WrappedHttpSession, WrappedPortletSession

public interface WrappedSession
extends Serializable

A generic session, wrapping a more specific session implementation, e.g. HttpSession or PortletSession.

Since:

7.0.0

Author:

Vaadin Ltd

Method Summary

Modifier and Type	Method and Description
Object	getAttribute(String name) Gets an attribute from this session.
Set<String>	getAttributeNames() Gets the current set of attribute names stored in this session.
long	getCreationTime() Returns the time when this session was created, measured in milliseconds since midnight January 1, 1970 GMT.
String	getId() Gets a string with a unique identifier for the session.
long	getLastAccessedTime() Returns the last time the client sent a request associated with this session, as the number of milliseconds since midnight January 1, 1970 GMT, and marked by the time the container received the request.
int	getMaxInactiveInterval() Returns the maximum time interval, in seconds, that this session will be kept open between client accesses.
void	invalidate() Invalidates this session then unbinds any objects bound to it.
boolean	isNew() Returns true if the client does not yet know about the session or if the client chooses not to join the session.
void	removeAttribute(String name) Removes the object bound with the specified name from this session.
void	setAttribute(String name, Object value) Saves an attribute value in this session.
void	setMaxInactiveInterval(int interval) Specifies the time, in seconds, between client requests before the servlet container will invalidate this session.

Method Detail

getMaxInactiveInterval

int getMaxInactiveInterval()

Returns the maximum time interval, in seconds, that this session will be kept open between client accesses.

Returns:

an integer specifying the number of seconds this session remains open between client requests

See Also:

HttpSession.getMaxInactiveInterval(), PortletSession.getMaxInactiveInterval()

getAttribute

Object getAttribute(String name)

Gets an attribute from this session.

Parameters:

name - the name of the attribute

Returns:

the attribute value, or null if the attribute is not defined in the session

See Also:

HttpSession.getAttribute(String), PortletSession.getAttribute(String)

setAttribute

void setAttribute(String name,
                  Object value)

Saves an attribute value in this session.

Parameters:

name - the name of the attribute

value - the attribute value

See Also:

HttpSession.setAttribute(String, Object), PortletSession.setAttribute(String, Object)

getAttributeNames

Set<String> getAttributeNames()

Gets the current set of attribute names stored in this session.

Returns:

an unmodifiable set of the current attribute names

See Also:

HttpSession.getAttributeNames(), PortletSession.getAttributeNames()

invalidate

void invalidate()

Invalidates this session then unbinds any objects bound to it.

See Also:

HttpSession.invalidate(), PortletSession.invalidate()

getId

String getId()

Gets a string with a unique identifier for the session.

Returns:

a unique session id string

See Also:

HttpSession.getId(), PortletSession.getId()

getCreationTime

long getCreationTime()

Returns the time when this session was created, measured in milliseconds since midnight January 1, 1970 GMT.

Returns:

a long specifying when this session was created, expressed in milliseconds since 1/1/1970 GMT

Throws:

IllegalStateException - if this method is called on an invalidated session

See Also:

HttpSession.getCreationTime(), PortletSession.getCreationTime()

getLastAccessedTime

long getLastAccessedTime()

Returns the last time the client sent a request associated with this session, as the number of milliseconds since midnight January 1, 1970 GMT, and marked by the time the container received the request.

Actions that your application takes, such as getting or setting a value associated with the session, do not affect the access time.

Returns:

a long representing the last time the client sent a request associated with this session, expressed in milliseconds since 1/1/1970 GMT

Throws:

IllegalStateException - if this method is called on an invalidated session

See Also:

HttpSession.getLastAccessedTime(), PortletSession.getLastAccessedTime()

isNew

boolean isNew()

Returns true if the client does not yet know about the session or if the client chooses not to join the session. For example, if the server used only cookie-based sessions, and the client had disabled the use of cookies, then a session would be new on each request.

Returns:

true if the server has created a session, but the client has not yet joined

Throws:

IllegalStateException - if this method is called on an invalidated session

See Also:

HttpSession.isNew(), PortletSession.isNew()

removeAttribute

void removeAttribute(String name)

Removes the object bound with the specified name from this session. If the session does not have an object bound with the specified name, this method does nothing.

Parameters:

name - the name of the object to remove from this session

Throws:

IllegalStateException - if this method is called on an invalidated session

See Also:

HttpSession.removeAttribute(String), PortletSession.removeAttribute(String)

setMaxInactiveInterval

void setMaxInactiveInterval(int interval)

Specifies the time, in seconds, between client requests before the servlet container will invalidate this session. A negative time indicates the session should never timeout.

Parameters:

interval - An integer specifying the number of seconds

See Also:

HttpSession.setMaxInactiveInterval(int), PortletSession.setMaxInactiveInterval(int)