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MatFileRW - Read and write .mat files

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/*
 * Code licensed under new-style BSD (see LICENSE).
 * All code up to tags/original: Copyright (c) 2006, Wojciech Gradkowski
 * All code after tags/original: Copyright (c) 2015, DiffPlug
 */
package com.jmatio.io.stream;

import java.io.IOException;
import java.nio.ByteBuffer;

interface DataOutputStream {
	/**
	 * Returns the current size of this stream.
	 * 
	 * @return the current size of this stream.
	 * @throws IOException
	 */
	public abstract int size() throws IOException;

	/**
	 * Returns the current {@link ByteBuffer} mapped on the target file.
	 * 
	 * Note: the {@link ByteBuffer} has READ ONLY access.
	 * 
	 * @return the {@link ByteBuffer}
	 * @throws IOException
	 */
	public abstract ByteBuffer buffer() throws IOException;

	/**
	 * Writes a sequence of bytes to this stream from the given buffer.
	 * 
	 * @param byteBuffer
	 *            the source {@link ByteBuffer}
	 * @throws IOException
	 */
	public abstract void write(ByteBuffer byteBuffer) throws IOException;

}