/* * Copyright (c) 1999, 2004, 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; import java.net.URL;   /** * An instrument is a sound-synthesis algorithm with certain parameter * settings, usually designed to emulate a specific real-world * musical instrument or to achieve a specific sort of sound effect. * Instruments are typically stored in collections called soundbanks. * Before the instrument can be used to play notes, it must first be loaded * onto a synthesizer, and then it must be selected for use on * one or more channels, via a program-change command.  MIDI notes * that are subsequently received on those channels will be played using * the sound of the selected instrument. * * @see Soundbank * @see Soundbank#getInstruments * @see Patch * @see Synthesizer#loadInstrument(Instrument) * @see MidiChannel#programChange(int, int) * @author Kara Kytle */ public abstract class Instrument extends SoundbankResource {      /**     * Instrument patch     */    private final Patch patch;      /**     * Constructs a new MIDI instrument from the specified <code>Patch</code>.     * When a subsequent request is made to load the     * instrument, the sound bank will search its contents for this instrument's <code>Patch</code>,     * and the instrument will be loaded into the synthesizer at the     * bank and program location indicated by the <code>Patch</code> object.     * @param soundbank sound bank containing the instrument     * @param patch the patch of this instrument     * @param name the name of this instrument     * @param dataClass the class used to represent the sample's data.     *     * @see Synthesizer#loadInstrument(Instrument)     */    protected Instrument(Soundbank soundbank, Patch patch, String name, Class<?> dataClass) {         super(soundbank, name, dataClass);        this.patch = patch;    }      /**     * Obtains the <code>Patch</code> object that indicates the bank and program     * numbers where this instrument is to be stored in the synthesizer.     * @return this instrument's patch     */    public Patch getPatch() {        return patch;    }}