com.vaadin.flow.shared.communication

Class PushConstants

java.lang.Object

com.vaadin.flow.shared.communication.PushConstants

All Implemented Interfaces:

Serializable

public class PushConstants
extends Object
implements Serializable

Shared constants used by push.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
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

Constructors

Constructor and Description
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()