Package jakarta.websocket

This package contains all the Jakarta WebSocket APIs common to both the client and server side.

Interface Summary

Interface	Description
ClientEndpointConfig	The ClientEndpointConfig is a special kind of endpoint configuration object that contains web socket configuration information specific only to client endpoints.
CloseReason.CloseCode	A marker interface for the close codes.
Decoder	The Decoder interface holds member interfaces that define how a developer can provide the web socket container a way web socket messages into developer defined custom objects.
Decoder.Binary<T>	This interface defines how a custom object (of type T) is decoded from a web socket message in the form of a byte buffer.
Decoder.BinaryStream<T>	This interface defines how a custom object is decoded from a web socket message in the form of a binary stream.
Decoder.Text<T>	This interface defines how a custom object is decoded from a web socket message in the form of a string.
Decoder.TextStream<T>	This interface defines how a custom object of type T is decoded from a web socket message in the form of a character stream.
Encoder	The Encoder interface defines how developers can provide a way to convert their custom objects into web socket messages.
Encoder.Binary<T>	This interface defines how to provide a way to convert a custom object into a binary message.
Encoder.BinaryStream<T>	This interface may be implemented by encoding algorithms that want to write the encoded object to a binary stream.
Encoder.Text<T>	This interface defines how to provide a way to convert a custom object into a text message.
Encoder.TextStream<T>	This interface may be implemented by encoding algorithms that want to write the encoded object to a character stream.
EndpointConfig	The endpoint configuration contains all the information needed during the handshake process for this end point.
Extension	A simple representation of a websocket extension as a name and map of extension parameters.
Extension.Parameter	This member interface defines a single websocket extension parameter.
HandshakeResponse	The handshake response represents the WebSocket-defined HTTP response that is the response to the opening handshake request.
MessageHandler	Developers implement MessageHandlers in order to receive incoming messages during a web socket conversation.
MessageHandler.Partial<T>	This kind of handler is notified by the implementation as it becomes ready to deliver parts of a whole message.
MessageHandler.Whole<T>	This kind of handler is notified by the container on arrival of a complete message.
PongMessage	The PongMessage interface represents a web socket pong.
RemoteEndpoint	The RemoteEndpoint object is supplied by the container and represents the 'other end' or peer of the Web Socket conversation.
RemoteEndpoint.Async	This representation of the peer of a web socket conversation has the ability to send messages asynchronously.
RemoteEndpoint.Basic	This representation of the peer of a web socket conversation has the ability to send messages synchronously.
SendHandler	A simple callback object for asynchronous sending of web socket messages.
Session	A Web Socket session represents a conversation between two web socket endpoints.
WebSocketContainer	A WebSocketContainer is an implementation provided object that provides applications a view on the container running it.

Class Summary

Class	Description
ClientEndpointConfig.Builder	The ClientEndpointConfig.Builder is a class used for creating ClientEndpointConfig objects for the purposes of deploying a client endpoint.
ClientEndpointConfig.Configurator	The Configurator class may be extended by developers who want to provide custom configuration algorithms, such as intercepting the opening handshake, or providing arbitrary methods and algorithms that can be accessed from each endpoint instance configured with this configurator.
CloseReason	A class encapsulating the reason why a web socket has been closed, or why it is being asked to close.
ContainerProvider	Provider class that allows the developer to get a reference to the implementation of the WebSocketContainer.
Endpoint	The Web Socket Endpoint represents an object that can handle websocket conversations.
SendResult	The result of asynchronously sending a web socket message.

Enum Summary

Enum	Description
CloseReason.CloseCodes	An Enumeration of status codes for a web socket close that are defined in the specification.

Exception Summary

Exception	Description
DecodeException	A general exception that occurs when trying to decode a custom object from a text or binary message.
DeploymentException	Checked exception indicating some kind of failure either to publish an endpoint on its server, or a failure to connect a client to its server.
EncodeException	A general exception that occurs when trying to encode a custom object to a string or binary message.
SessionException	A SessionException represents a general exception type reporting problems occurring on a websocket session.

Annotation Types Summary

Annotation Type	Description
ClientEndpoint	The ClientEndpoint annotation a class level annotation is used to denote that a POJO is a web socket client and can be deployed as such.
OnClose	This method level annotation can be used to decorate a Java method that wishes to be called when a web socket session is closing.
OnError	This method level annotation can be used to decorate a Java method that wishes to be called in order to handle errors.
OnMessage	This method level annotation can be used to make a Java method receive incoming web socket messages.
OnOpen	This method level annotation can be used to decorate a Java method that wishes to be called when a new web socket session is open.