// Copyright 2004 Nokia Corporation.//// THIS SOURCE CODE IS PROVIDED 'AS IS', WITH NO WARRANTIES WHATSOEVER,// EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS// FOR ANY PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE// OR TRADE PRACTICE, RELATING TO THE SOURCE CODE OR ANY WARRANTY OTHERWISE// ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE AND WITH NO// OBLIGATION OF NOKIA TO PROVIDE THE LICENSEE WITH ANY MAINTENANCE OR// SUPPORT. FURTHERMORE, NOKIA MAKES NO WARRANTY THAT EXERCISE OF THE// RIGHTS GRANTED HEREUNDER DOES NOT INFRINGE OR MAY NOT CAUSE INFRINGEMENT// OF ANY PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OWNED OR CONTROLLED// BY THIRD PARTIES//// Furthermore, information provided in this source code is preliminary,// and may be changed substantially prior to final release. Nokia Corporation// retains the right to make changes to this source code at// any time, without notice. This source code is provided for informational// purposes only.//// Nokia and Nokia Connecting People are registered trademarks of Nokia// Corporation.// Java and all Java-based marks are trademarks or registered trademarks of// Sun Microsystems, Inc.// Other product and company names mentioned herein may be trademarks or// trade names of their respective owners.//// A non-exclusive, non-transferable, worldwide, limited license is hereby// granted to the Licensee to download, print, reproduce and modify the// source code. The licensee has the right to market, sell, distribute and// make available the source code in original or modified form only when// incorporated into the programs developed by the Licensee. No other// license, express or implied, by estoppel or otherwise, to any other// intellectual property rights is granted herein.package example.btsppecho.client;public interface ClientConnectionHandlerListener{    // The handler's accept and open of a new connection    // has occurred, but the I/O streams are not yet open.    // The I/O streams must be open to send or receive    // messages.    public void handleAcceptAndOpen(ClientConnectionHandler handler);    // The handler's I/O streams are now open and the    // handler can now be used to send and receive messages.    public void handleStreamsOpen(ClientConnectionHandler handler);    // Opening of the handler's I/O streams failed. The handler has    // closed any connections or streams that were open.    // The handler should not be used anymore,    // and should be discarded.    public void handleStreamsOpenError(ClientConnectionHandler handler,                                       String errorMessage);    // The handler got an inbound message.    public void handleReceivedMessage(                    ClientConnectionHandler handler,                    byte[] messageBytes);    // A message that had been previously queued for sending    // (identified by id) by the handler, has been sent successfully.    public void handleQueuedMessageWasSent(                    ClientConnectionHandler handler,                    Integer id);    // The handler has closed its connections and streams.    // The handler should not be used anymore, and should be discarded.    // Only handlers which have previously called 'handleOpen' may    // call 'handleClose', and only just once.    public void handleClose(ClientConnectionHandler handler);    // An error related to the handler occurred. The handler    // has closed the connection, and the handler should no    // longer be used.    public void handleErrorClose(ClientConnectionHandler handler,                                 String errorMessage);}