ej.websocket

Enum ConnectionStates

java.lang.Object

java.lang.Enum<ConnectionStates>

ej.websocket.ConnectionStates

All Implemented Interfaces:

Serializable, Comparable<ConnectionStates>

public enum ConnectionStates
extends Enum<ConnectionStates>

RFC6455 defined several possible states for a websocket. This enum type offer a Java representation for these states.

This enum type add a additional state, NEW. It indicate that the Websocket object has been created but the WebSocket.connect() method has not been already called. Hence, the WebSocket is not yet in the CONNECTING state.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CLOSED State once the underlying TCP connection is closed.
CLOSING State "upon either sending or receiving a Close control frame".
CONNECTING Initial state of the websocket in the RFC6455.
NEW The WebSocket Java object has been created but its WebSocket.connect() method has not been called yet.
OPEN State once the opening handshake is done.

Method Summary

Modifier and Type	Method and Description
static ConnectionStates	valueOf(String name) Returns the enum constant of this type with the specified name.
static ConnectionStates[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CLOSED

public static final ConnectionStates CLOSED

State once the underlying TCP connection is closed.

See section 7.1.4. The WebSocket Connection is Closed.

CLOSING

public static final ConnectionStates CLOSING

State "upon either sending or receiving a Close control frame".

See section 7.1.3. The WebSocket Closing Handshake is Started.

CONNECTING

public static final ConnectionStates CONNECTING

Initial state of the websocket in the RFC6455. The application is "establishing a websocket connection". It Java, the websocket moves to this sate when the WebSocket.connect() method is called.

See section 4.1. Client Requirements.

NEW

public static final ConnectionStates NEW

The WebSocket Java object has been created but its WebSocket.connect() method has not been called yet.

OPEN

public static final ConnectionStates OPEN

State once the opening handshake is done.

See end of section 4.1. Client Requirements.

Method Detail

valueOf

public static ConnectionStates valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

values

public static ConnectionStates[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ConnectionStates c : ConnectionStates.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared