fileobjectoutputstream.java

非常棒的java数据库

/*
 * Copyright 2004-2008 H2 Group. Licensed under the H2 License, Version 1.0
 * (http://h2database.com/html/license.html).
 * Initial Developer: H2 Group
 */
package org.h2.store.fs;

/**
 * Allows to write to a file object like an output stream.
 */
import java.io.IOException;
import java.io.OutputStream;

public class FileObjectOutputStream extends OutputStream {

    private FileObject file;
    private byte[] buffer = new byte[1];

    FileObjectOutputStream(FileObject file, boolean append) throws IOException {
        this.file = file;
        if (append) {
            file.seek(file.length());
        } else {
            file.seek(0);
            file.setFileLength(0);
        }
    }

    public void write(int b) throws IOException {
        buffer[0] = (byte) b;
        file.write(buffer, 0, 1);
    }

    public void write(byte[] b) throws IOException {
        file.write(b, 0, b.length);
    }

    public void write(byte[] b, int off, int len) throws IOException {
        file.write(b, off, len);
    }

    public void close() throws IOException {
        file.close();
    }

}