| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.media.midi; |
| |
| /** |
| * Interface provided by a device to allow attaching |
| * MidiReceivers to a MIDI device. |
| */ |
| abstract public class MidiSender { |
| |
| /** |
| * Connects a {@link MidiReceiver} to the sender |
| * |
| * @param receiver the receiver to connect |
| */ |
| public void connect(MidiReceiver receiver) { |
| if (receiver == null) { |
| throw new NullPointerException("receiver null in MidiSender.connect"); |
| } |
| onConnect(receiver); |
| } |
| |
| /** |
| * Disconnects a {@link MidiReceiver} from the sender |
| * |
| * @param receiver the receiver to disconnect |
| */ |
| public void disconnect(MidiReceiver receiver) { |
| if (receiver == null) { |
| throw new NullPointerException("receiver null in MidiSender.disconnect"); |
| } |
| onDisconnect(receiver); |
| } |
| |
| /** |
| * Called to connect a {@link MidiReceiver} to the sender |
| * |
| * @param receiver the receiver to connect |
| */ |
| abstract public void onConnect(MidiReceiver receiver); |
| |
| /** |
| * Called to disconnect a {@link MidiReceiver} from the sender |
| * |
| * @param receiver the receiver to disconnect |
| */ |
| abstract public void onDisconnect(MidiReceiver receiver); |
| } |