--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/sound/midi/Patch.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,112 @@
+/*
+ * Copyright 1999-2002 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.sound.midi;
+
+
+/**
+ * A <code>Patch</code> object represents a location, on a MIDI
+ * synthesizer, into which a single instrument is stored (loaded).
+ * Every <code>Instrument</code> object has its own <code>Patch</code>
+ * object that specifies the memory location
+ * into which that instrument should be loaded. The
+ * location is specified abstractly by a bank index and a program number (not by
+ * any scheme that directly refers to a specific address or offset in RAM).
+ * This is a hierarchical indexing scheme: MIDI provides for up to 16384 banks,
+ * each of which contains up to 128 program locations.  For example, a
+ * minimal sort of synthesizer might have only one bank of instruments, and
+ * only 32 instruments (programs) in that bank.
+ * <p>
+ * To select what instrument should play the notes on a particular MIDI
+ * channel, two kinds of MIDI message are used that specify a patch location:
+ * a bank-select command, and a program-change channel command.  The Java Sound
+ * equivalent is the
+ * {@link MidiChannel#programChange(int, int) programChange(int, int)}
+ * method of <code>MidiChannel</code>.
+ *
+ * @see Instrument
+ * @see Instrument#getPatch()
+ * @see MidiChannel#programChange(int, int)
+ * @see Synthesizer#loadInstruments(Soundbank, Patch[])
+ * @see Soundbank
+ * @see Sequence#getPatchList()
+ *
+ * @author Kara Kytle
+ */
+
+public class Patch {
+
+
+    /**
+     * Bank index
+     */
+    private final int bank;
+
+
+    /**
+     * Program change number
+     */
+    private final int program;
+
+
+    /**
+     * Constructs a new patch object from the specified bank and program
+     * numbers.
+     * @param bank the bank index (in the range from 0 to 16383)
+     * @param program the program index (in the range from 0 to 127)
+     */
+    public Patch(int bank, int program) {
+
+        this.bank = bank;
+        this.program = program;
+    }
+
+
+    /**
+     * Returns the number of the bank that contains the instrument
+     * whose location this <code>Patch</code> specifies.
+     * @return the bank number, whose range is from 0 to 16383
+     * @see MidiChannel#programChange(int, int)
+     */
+    public int getBank() {
+
+        return bank;
+    }
+
+
+    /**
+     * Returns the index, within
+     * a bank, of the instrument whose location this <code>Patch</code> specifies.
+     * @return the instrument's program number, whose range is from 0 to 127
+     *
+     * @see MidiChannel#getProgram
+     * @see MidiChannel#programChange(int)
+     * @see MidiChannel#programChange(int, int)
+     */
+    public int getProgram() {
+
+        return program;
+    }
+}