/* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.sound.midi;  /** * A <code>Receiver</code> receives <code>{@link MidiEvent}</code> objects and * typically does something useful in response, such as interpreting them to * generate sound or raw MIDI output.  Common MIDI receivers include * synthesizers and MIDI Out ports. * * @see MidiDevice * @see Synthesizer * @see Transmitter * * @author Kara Kytle */public interface Receiver extends AutoCloseable {      //$$fb 2002-04-12: fix for 4662090: Contradiction in Receiver specification    /**     * Sends a MIDI message and time-stamp to this receiver.     * If time-stamping is not supported by this receiver, the time-stamp     * value should be -1.     * @param message the MIDI message to send     * @param timeStamp the time-stamp for the message, in microseconds.     * @throws IllegalStateException if the receiver is closed     */    public void send(MidiMessage message, long timeStamp);     /**     * Indicates that the application has finished using the receiver, and     * that limited resources it requires may be released or made available.     *     * <p>If the creation of this <code>Receiver</code> resulted in     * implicitly opening the underlying device, the device is     * implicitly closed by this method. This is true unless the device is     * kept open by other <code>Receiver</code> or <code>Transmitter</code>     * instances that opened the device implicitly, and unless the device     * has been opened explicitly. If the device this     * <code>Receiver</code> is retrieved from is closed explicitly by     * calling {@link MidiDevice#close MidiDevice.close}, the     * <code>Receiver</code> is closed, too.  For a detailed     * description of open/close behaviour see the class description     * of {@link javax.sound.midi.MidiDevice MidiDevice}.     *     * @see javax.sound.midi.MidiSystem#getReceiver     */    public void close();}