com.vaadin.client.communication.Heartbeat API 8.27.7 | Vaadin

com.vaadin.client.communication.

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

```
public class Heartbeat
extends Object
```
Handles sending of heartbeats to the server and reacting to the response.

Since:

7.2

Author:

Vaadin Ltd

Constructor Summary

Constructors
Constructor Description

Heartbeat()

Method Summary

All Methods
Modifier and Type	Method	Description
`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:
    
    applicationConnection - 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.