javax.net.websocket.extensions.Extension Maven / Gradle / Ivy
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package javax.net.websocket.extensions;
import java.util.Map;
/**
* The Extension interface represents a web socket extension. Extensions are
* added to a web socket endpoint by adding them to its EndpointConfiguration.
* The extension consists of a name, a collection of extension parameters and a
* pair of ExtensionHandlers, one that handles all the frames the web socket
* implementation uses for representing incoming web socket events and messages,
* and the other that handles all the frames the web socket implementation uses
* for representing outgoing web socket events and messages.
*
* @since DRAFT 003
*/
public interface Extension {
/**
* The FrameHandler that is invoked for any incoming Frames.
*/
abstract FrameHandler createIncomingFrameHandler(FrameHandler downstream);
/**
* The FrameHandler that is invoked for any outgoing Frames.
*/
abstract FrameHandler createOutgoingFrameHandler(FrameHandler upstream);
/**
* The name of this extension.
*/
// FIXME: need language about what is an acceptable name syntax
abstract String getName();
/**
* The map name value pairs that are the web socket extension parameters for
* this extension.
*/
// FIXME: parameter order is important on permessage-compress
// FIXME: need clarification of quoting rules for values?
abstract Map getParameters();
}