How to use

writeFully

method

in

org.h2.mvstore.DataUtils

/**
 * Write to the file.
 *
 * @param pos the write position
 * @param src the source buffer
 */
public void writeFully(long pos, ByteBuffer src) {
  int len = src.remaining();
  fileSize = Math.max(fileSize, pos + len);
  DataUtils.writeFully(file, pos, src);
  writeCount.incrementAndGet();
  writeBytes.addAndGet(len);
}

/**
 * Write to the file.
 *
 * @param pos the write position
 * @param src the source buffer
 */
public void writeFully(long pos, ByteBuffer src) {
  int len = src.remaining();
  fileSize = Math.max(fileSize, pos + len);
  DataUtils.writeFully(file, pos, src);
  writeCount++;
  writeBytes += len;
}

/**
 * Write to the file.
 *
 * @param pos the write position
 * @param src the source buffer
 */
public void writeFully(long pos, ByteBuffer src) {
  int len = src.remaining();
  fileSize = Math.max(fileSize, pos + len);
  DataUtils.writeFully(file, pos, src);
  writeCount++;
  writeBytes += len;
}

/**
 * Write to the file.
 *
 * @param pos the write position
 * @param src the source buffer
 */
public void writeFully(long pos, ByteBuffer src) {
  int len = src.remaining();
  fileSize = Math.max(fileSize, pos + len);
  DataUtils.writeFully(file, pos, src);
  writeCount.incrementAndGet();
  writeBytes.addAndGet(len);
}

if (plus > 0) {
  temp = ByteBuffer.allocate(plus);
  DataUtils.writeFully(base, p + HEADER_LENGTH + l, temp);

if (plus > 0) {
  temp = ByteBuffer.allocate(plus);
  DataUtils.writeFully(base, p + HEADER_LENGTH + l, temp);

private void init() throws IOException {
  if (xts != null) {
    return;
  }
  this.size = base.size() - HEADER_LENGTH;
  boolean newFile = size < 0;
  byte[] salt;
  if (newFile) {
    byte[] header = Arrays.copyOf(HEADER, BLOCK_SIZE);
    salt = MathUtils.secureRandomBytes(SALT_LENGTH);
    System.arraycopy(salt, 0, header, SALT_POS, salt.length);
    DataUtils.writeFully(base, 0, ByteBuffer.wrap(header));
    size = 0;
  } else {
    salt = new byte[SALT_LENGTH];
    DataUtils.readFully(base, SALT_POS, ByteBuffer.wrap(salt));
    if ((size & BLOCK_SIZE_MASK) != 0) {
      size -= BLOCK_SIZE;
    }
  }
  AES cipher = new AES();
  cipher.setKey(SHA256.getPBKDF2(
      encryptionKey, salt, HASH_ITERATIONS, 16));
  encryptionKey = null;
  xts = new XTS(cipher);
}

private void init() throws IOException {
  if (xts != null) {
    return;
  }
  this.size = base.size() - HEADER_LENGTH;
  boolean newFile = size < 0;
  byte[] salt;
  if (newFile) {
    byte[] header = Arrays.copyOf(HEADER, BLOCK_SIZE);
    salt = MathUtils.secureRandomBytes(SALT_LENGTH);
    System.arraycopy(salt, 0, header, SALT_POS, salt.length);
    DataUtils.writeFully(base, 0, ByteBuffer.wrap(header));
    size = 0;
  } else {
    salt = new byte[SALT_LENGTH];
    DataUtils.readFully(base, SALT_POS, ByteBuffer.wrap(salt));
    if ((size & BLOCK_SIZE_MASK) != 0) {
      size -= BLOCK_SIZE;
    }
  }
  AES cipher = new AES();
  cipher.setKey(SHA256.getPBKDF2(
      encryptionKey, salt, HASH_ITERATIONS, 16));
  encryptionKey = null;
  xts = new XTS(cipher);
}