| /* |
| * Copyright (c) 1999, 2003, 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 |
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| */ |
| |
| package javax.sound.midi; |
| |
| |
| /** |
| * A <code>Transmitter</code> sends <code>{@link MidiEvent}</code> objects to one or more |
| * <code>{@link Receiver Receivers}</code>. Common MIDI transmitters include sequencers |
| * and MIDI input ports. |
| * |
| * @see Receiver |
| * |
| * @author Kara Kytle |
| */ |
| public interface Transmitter { |
| |
| |
| /** |
| * Sets the receiver to which this transmitter will deliver MIDI messages. |
| * If a receiver is currently set, it is replaced with this one. |
| * @param receiver the desired receiver. |
| */ |
| public void setReceiver(Receiver receiver); |
| |
| |
| /** |
| * Obtains the current receiver to which this transmitter will deliver MIDI messages. |
| * @return the current receiver. If no receiver is currently set, |
| * returns <code>null</code> |
| */ |
| public Receiver getReceiver(); |
| |
| |
| /** |
| * Indicates that the application has finished using the transmitter, and |
| * that limited resources it requires may be released or made available. |
| * |
| * <p>If the creation of this <code>Transmitter</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>Transmitter</code> is retrieved from is closed explicitly |
| * by calling {@link MidiDevice#close MidiDevice.close}, the |
| * <code>Transmitter</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#getTransmitter |
| */ |
| public void close(); |
| } |