com.vaadin.server.communication

Class SharedStateWriter

java.lang.Object

com.vaadin.server.communication.SharedStateWriter

All Implemented Interfaces:

Serializable

public class SharedStateWriter
extends Object
implements Serializable

Serializes shared state changes to JSON.

Since:

7.1

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SharedStateWriter()

Method Summary

Modifier and Type	Method and Description
Set<String>	write(UI ui, Writer writer) Writes a JSON object containing the pending state changes of the dirty connectors of the given UI.

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedStateWriter

public SharedStateWriter()

Method Detail

write

public Set<String> write(UI ui,
                         Writer writer)
                  throws IOException

Writes a JSON object containing the pending state changes of the dirty connectors of the given UI.

Parameters:

ui - The UI whose state changes should be written.

writer - The writer to use.

Returns:

a set of connector ids with state changes

Throws:

IOException - If the serialization fails.