PushConnection (Vaadin Platform (vaadin-platform-javadoc) 23.2.3 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

AtmospherePushConnection
```
public interface PushConnection
extends Serializable
```
Represents a bidirectional ("push") connection between a single UI and its client-side. A single PushConnection instance is bound to a UI as long as push is enabled in that UI, even if the actual connection is momentarily dropped either due to a network failure or as a normal part of the transport mechanism.
This interface is an internal API, only meant to be used by the framework. May be renamed or removed in a future release.

Since:

1.0

Author:

Vaadin Ltd

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`disconnect()`	Closes the connection.
`boolean`	`isConnected()`	Returns whether this connection is currently open.
`void`	`push()`	Pushes pending state changes and client RPC calls to the client.

- Method Detail
  - push
```
void push()
```
    Pushes pending state changes and client RPC calls to the client. Can be called even if isConnected() is false; the push will be deferred until a connection is available. It is NOT safe to invoke this method if not holding the session lock.
    This is internal API; please use UI.push() instead.
  - disconnect
```
void disconnect()
```
    Closes the connection. Cannot be called if isConnected() is false.
  - isConnected
```
boolean isConnected()
```
    Returns whether this connection is currently open.
    
    Returns:
    
    true if the connection is open, false otherwise