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/*
 * Copyright 2009 Phil Burk, Mobileer Inc
 *
 * 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 com.jsyn.unitgen;

import com.jsyn.io.AudioOutputStream;
import com.jsyn.ports.UnitInputPort;

/**
 * Base class for writing to an AudioOutputStream.
 *
 * Note that you must call start() on subclasses of this unit because it does not have an output for pulling data.
 *
 * @author Phil Burk (C) 2009 Mobileer Inc
 */
public abstract class UnitStreamWriter extends UnitGenerator implements UnitSink {
    protected AudioOutputStream outputStream;
    public UnitInputPort input;

    public AudioOutputStream getOutputStream() {
        return outputStream;
    }

    public void setOutputStream(AudioOutputStream outputStream) {
        this.outputStream = outputStream;
    }

    /**
     * This unit won't do anything unless you start() it.
     */
    @Override
    public boolean isStartRequired() {
        return true;
    }

    @Override
    public UnitInputPort getInput() {
        return input;
    }
}