1 /*
   2  * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.media.sound;
  27 
  28 import javax.sound.midi.MidiUnavailableException;
  29 import javax.sound.midi.Receiver;
  30 import javax.sound.midi.Transmitter;
  31 
  32 /** MidiDevice that can use reference counting for open/close.
  33  * This interface is intended to be used by MidiSystem.getTransmitter() and
  34  * MidiSystem.getReceiver().
  35  *
  36  * @author Matthias Pfisterer
  37  */
  38 public interface ReferenceCountingDevice {
  39     /** Retrieve a Receiver that opens the device implicitly.
  40      * This method is similar to MidiDevice.getReceiver(). However, by calling this one,
  41      * the device is opened implicitly. This is needed by MidiSystem.getReceiver().
  42      */
  43     Receiver getReceiverReferenceCounting() throws MidiUnavailableException;
  44 
  45     /** Retrieve a Transmitter that opens the device implicitly.
  46      * This method is similar to MidiDevice.getTransmitter(). However, by calling this one,
  47      * the device is opened implicitly. This is needed by MidiSystem.getTransmitter().
  48      */
  49     Transmitter getTransmitterReferenceCounting() throws MidiUnavailableException;
  50 }