com.vaadin.shared.communication
Class PushConstants

java.lang.Object
  com.vaadin.shared.communication.PushConstants

All Implemented Interfaces:

java.io.Serializable

public class PushConstants
extends java.lang.Object
implements java.io.Serializable

Shared constants used by push.

Since:

7.1

Author:

Vaadin Ltd

See Also:

Serialized Form

Field Summary

static char	MESSAGE_DELIMITER The character used to mark message boundaries when messages may be split into multiple fragments.
static int	WEBSOCKET_BUFFER_SIZE The size, in bytes, of the receiving buffer used by some servers.
static int	WEBSOCKET_FRAGMENT_SIZE The maximum size, in characters, of a websocket message fragment.

Constructor Summary

PushConstants()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

WEBSOCKET_BUFFER_SIZE

public static final int WEBSOCKET_BUFFER_SIZE

The size, in bytes, of the receiving buffer used by some servers.

Should not be set to a value equal to or greater than 32768 due to a Jetty 9.1 issue (see #13087)

See Also:

Constant Field Values

WEBSOCKET_FRAGMENT_SIZE

public static final int WEBSOCKET_FRAGMENT_SIZE

The maximum size, in characters, of a websocket message fragment. This is a conservative maximum chosen so that the size in bytes will not exceed WEBSOCKET_BUFFER_SIZE given a UTF-8 encoded message.

See Also:

Constant Field Values

MESSAGE_DELIMITER

public static final char MESSAGE_DELIMITER

The character used to mark message boundaries when messages may be split into multiple fragments.

See Also:

Constant Field Values

Constructor Detail

PushConstants

public PushConstants()