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