com.vaadin.client.communication
Class Heartbeat

java.lang.Object
  com.vaadin.client.communication.Heartbeat

public class Heartbeat
extends java.lang.Object

Handles sending of heartbeats to the server and reacting to the response

Since:

7.2

Author:

Vaadin Ltd

Constructor Summary

Heartbeat()

Method Summary

protected ApplicationConnection	getConnection() Deprecated.
int	getInterval()
void	init(ApplicationConnection applicationConnection) Initializes the heartbeat for the given application connection
void	schedule() Updates the schedule of the heartbeat to match the set interval.
void	send() Sends a heartbeat to the server
void	setInterval(int heartbeatInterval) Changes the heartbeatInterval in runtime and applies it.

Methods inherited from class java.lang.Object

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

Constructor Detail

Heartbeat

public Heartbeat()

Method Detail

init

public void init(ApplicationConnection applicationConnection)

Initializes the heartbeat for the given application connection

Parameters:

connection - the connection

send

public void send()

Sends a heartbeat to the server

getInterval

public int getInterval()

Returns:

the interval at which heartbeat requests are sent

schedule

public void schedule()

Updates the schedule of the heartbeat to match the set interval. A negative interval disables the heartbeat.

getConnection

@Deprecated
protected ApplicationConnection getConnection()

Deprecated.

Returns:

the application connection

setInterval

public void setInterval(int heartbeatInterval)

Changes the heartbeatInterval in runtime and applies it.

Parameters:

heartbeatInterval - new interval in seconds.