Package org.dellroad.stuff.vaadin7

Class VaadinSessionInfo

java.lang.Object

org.dellroad.stuff.vaadin7.VaadinSessionInfo

public class VaadinSessionInfo
extends Object

Represents one VaadinSession in a VaadinSessionContainer.

Field Summary

Fields

Modifier and Type	Field	Description
protected VaadinSession	session	The VaadinSession associated with this instance.

Constructor Summary

Constructors

Constructor	Description
VaadinSessionInfo()	Constructor.

Method Summary

Modifier and Type	Method	Description
VaadinSession	getVaadinSession()	Get the VaadinSession associated with this instance.
boolean	isCurrentSession()	Determine if the VaadinSession associated with this instance is also associated with the current thread.
protected void	makeUpdatesVisible()	Make the updates previously gathered by updateInformation() visible in this instance's VaadinSessionContainer.
protected void	updateInformation()	Update this instance with information from its corresponding VaadinSession, which will be associated with the current thread and locked.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

session

protected final VaadinSession session

The VaadinSession associated with this instance.

Constructor Detail

VaadinSessionInfo

public VaadinSessionInfo()

Constructor.

Throws:

IllegalStateException - if there is no current VaadinSession

Method Detail

getVaadinSession

public VaadinSession getVaadinSession()

Get the VaadinSession associated with this instance.

Returns:

associated session

isCurrentSession

public boolean isCurrentSession()

Determine if the VaadinSession associated with this instance is also associated with the current thread.

Returns:

true if the associated session is the also current thread's session

updateInformation

protected void updateInformation()

Update this instance with information from its corresponding VaadinSession, which will be associated with the current thread and locked.

This method is invoked from VaadinSessionContainer.doUpdate(); the implementation in VaadinSessionInfo does nothing.

When this method and makeUpdatesVisible() are overridden, consider declaring them both synchronized, as they are invoked with different locks held yet will access the same information.

makeUpdatesVisible

protected void makeUpdatesVisible()

Make the updates previously gathered by updateInformation() visible in this instance's VaadinSessionContainer. The VaadinSession associated with this instance's VaadinSessionContainer will be associated with the current thread and locked.

This method is invoked from VaadinSessionContainer.doUpdate(); the implementation in VaadinSessionInfo does nothing.

When this method and updateInformation() are used, consider declaring them both synchronized, as they are invoked with different locks held yet will access the same information.