org.dellroad.stuff.vaadin7

Interface Connectable

All Known Implementing Classes:

AbstractQueryContainer, AbstractSimpleContainer, AbstractUnsizedContainer, EnumContainer, SelfKeyedContainer, SimpleContainer, SimpleKeyedContainer, VaadinSessionContainer

public interface Connectable

Generic interface supporting connection and disconnection.

Intended for use by any class in a Vaadin session that connects/disconnects to/from non-Vaadin "back-end" resources, typically Containers. Some type of interface like this is required because for Containers that connect to back-end resources because there is no equivalent of Component.attach()/ClientConnector.detach() like there is for widgets. Typically, connect() and disconnect() (respectively) would be invoked by those methods.

Method Summary

Modifier and Type	Method and Description
void	connect() Connect this instance to non-Vaadin resources.
void	disconnect() Disconnect this instance from non-Vaadin resources.

Method Detail

connect

void connect()

Connect this instance to non-Vaadin resources.

Throws:

IllegalStateException - if there is no VaadinSession associated with the current thread

disconnect

void disconnect()

Disconnect this instance from non-Vaadin resources.

Throws:

IllegalStateException - if there is no VaadinSession associated with the current thread