Package org.apache.tomcat.websocket

Enum WsFrameBase.ReadState

java.lang.Object

java.lang.Enum<WsFrameBase.ReadState>

org.apache.tomcat.websocket.WsFrameBase.ReadState

All Implemented Interfaces:

Serializable, Comparable<WsFrameBase.ReadState>, java.lang.constant.Constable

Enclosing class:

WsFrameBase

protected static enum WsFrameBase.ReadState
extends Enum<WsFrameBase.ReadState>

 WAITING            - not suspended
                      Server case: waiting for a notification that data is ready to be read from the socket, the
                                   socket is registered to the poller
                      Client case: data has been read from the socket and is waiting for data to be processed

 PROCESSING         - not suspended
                      Server case: reading from the socket and processing the data
                      Client case: processing the data if such has already been read and more data will be read
                                   from the socket

 SUSPENDING_WAIT    - suspended, a call to suspend() was made while in WAITING state. A call to resume() will do
                      nothing and will transition to WAITING state

 SUSPENDING_PROCESS - suspended, a call to suspend() was made while in PROCESSING state. A call to resume() will
                      do nothing and will transition to PROCESSING state

 SUSPENDED          - suspended
                      Server case: processing data finished (SUSPENDING_PROCESS) / a notification was received
                                   that data is ready to be read from the socket (SUSPENDING_WAIT), socket is not
                                   registered to the poller
                      Client case: processing data finished (SUSPENDING_PROCESS) / data has been read from the
                                   socket and is available for processing (SUSPENDING_WAIT)
                      A call to resume() will:
                      Server case: register the socket to the poller
                      Client case: resume data processing

 CLOSING            - not suspended, a close will be sent


     resume           data to be        resume
     no action        processed         no action
  |---------------| |---------------| |----------|
  |               v |               v v          |
  |  |----------WAITING«--------PROCESSING----|  |
  |  |             ^   processing             |  |
  |  |             |   finished               |  |
  |  |             |                          |  |
  | suspend        |                     suspend |
  |  |             |                          |  |
  |  |          resume                        |  |
  |  |    register socket to poller (server)  |  |
  |  |    resume data processing (client)     |  |
  |  |             |                          |  |
  |  v             |                          v  |
 SUSPENDING_WAIT   |                  SUSPENDING_PROCESS
  |                |                             |
  | data available |        processing finished  |
  |-------------»SUSPENDED«----------------------|
 

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CLOSING
PROCESSING
SUSPENDED
SUSPENDING_PROCESS
SUSPENDING_WAIT
WAITING

Method Summary

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

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

WAITING

public static final WsFrameBase.ReadState WAITING

PROCESSING

public static final WsFrameBase.ReadState PROCESSING

SUSPENDING_WAIT

public static final WsFrameBase.ReadState SUSPENDING_WAIT

SUSPENDING_PROCESS

public static final WsFrameBase.ReadState SUSPENDING_PROCESS

SUSPENDED

public static final WsFrameBase.ReadState SUSPENDED

CLOSING

public static final WsFrameBase.ReadState CLOSING

Method Details

values

public static WsFrameBase.ReadState[] values()

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

Returns:

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

valueOf

public static WsFrameBase.ReadState 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

isSuspended

public boolean isSuspended()