How to use

toLong

method

in

org.apache.cassandra.utils.ByteBufferUtil

  /**
   * Decompose.
   * 
   * @param value
   *            the value
   * @param clazz
   *            the clazz
   * @return the object
   */
  private static Object decompose(Object value, Class clazz)
  {
    ByteBuffer buf = ByteBuffer.wrap((byte[]) value, 0, ((byte[]) value).length);
    return ByteBufferUtil.toLong(buf);
  }
}

latestCount = ByteBufferUtil.toLong(ByteBuffer.wrap(row.getColumns().get(0).getValue()));

public Long deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : ByteBufferUtil.toLong(bytes);
}

  private static Object decompose(Object value, Class clazz)
  {
    ByteBuffer buf = ByteBuffer.wrap((byte[]) value, 0, ((byte[]) value).length);
    return ByteBufferUtil.toLong(buf);
  }
}

public Long deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : ByteBufferUtil.toLong(bytes);
}

public Long deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : ByteBufferUtil.toLong(bytes);
}

@Override
public Long deserialize(ByteBuffer paramByteBuffer, ProtocolVersion paramProtocolVersion) throws InvalidTypeException {
  if (paramByteBuffer == null) {
    return null;
  }
  // always duplicate the ByteBuffer instance before consuming it!
  return ByteBufferUtil.toLong(paramByteBuffer.duplicate());
}

public Date deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : new Date(ByteBufferUtil.toLong(bytes));
}

public Date deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : new Date(ByteBufferUtil.toLong(bytes));
}

public Date deserialize(ByteBuffer bytes)
{
  return bytes.remaining() == 0 ? null : new Date(ByteBufferUtil.toLong(bytes));
}

public Token fromByteArray(ByteBuffer bytes)
{
  return new LongToken(ByteBufferUtil.toLong(bytes));
}

public Token fromByteArray(ByteBuffer bytes)
{
  return new LongToken(ByteBufferUtil.toLong(bytes));
}

  @Override
  public String getString(CellNameType comparator)
  {
    return String.format("%s:%s@%d", comparator.getString(name()), ByteBufferUtil.toLong(value), timestamp());
  }
}

  public void execute(DecoratedKey partitionKey, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    if (bytes == ByteBufferUtil.UNSET_BYTE_BUFFER)
      return;
    long increment = ByteBufferUtil.toLong(bytes);
    params.addCounter(column, increment);
  }
}

  public void execute(DecoratedKey partitionKey, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    if (bytes == ByteBufferUtil.UNSET_BYTE_BUFFER)
      return;
    long increment = ByteBufferUtil.toLong(bytes);
    params.addCounter(column, increment);
  }
}

  public void execute(DecoratedKey partitionKey, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    if (bytes == ByteBufferUtil.UNSET_BYTE_BUFFER)
      return;
    long increment = ByteBufferUtil.toLong(bytes);
    params.addCounter(column, increment);
  }
}

  public void execute(DecoratedKey partitionKey, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    if (bytes == ByteBufferUtil.UNSET_BYTE_BUFFER)
      return;
    long increment = ByteBufferUtil.toLong(bytes);
    params.addCounter(column, increment);
  }
}

  public void execute(DecoratedKey partitionKey, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    if (bytes == ByteBufferUtil.UNSET_BYTE_BUFFER)
      return;
    long increment = ByteBufferUtil.toLong(bytes);
    if (increment == Long.MIN_VALUE)
      throw new InvalidRequestException("The negation of " + increment + " overflows supported counter precision (signed 8 bytes integer)");
    params.addCounter(column, -increment);
  }
}

  public void execute(ByteBuffer rowKey, ColumnFamily cf, Composite prefix, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    long increment = ByteBufferUtil.toLong(bytes);
    CellName cname = cf.getComparator().create(prefix, column);
    cf.addColumn(params.makeCounter(cname, increment));
  }
}

  public void execute(ByteBuffer rowKey, ColumnFamily cf, Composite prefix, UpdateParameters params) throws InvalidRequestException
  {
    ByteBuffer bytes = t.bindAndGet(params.options);
    if (bytes == null)
      throw new InvalidRequestException("Invalid null value for counter increment");
    long increment = ByteBufferUtil.toLong(bytes);
    if (increment == Long.MIN_VALUE)
      throw new InvalidRequestException("The negation of " + increment + " overflows supported counter precision (signed 8 bytes integer)");
    CellName cname = cf.getComparator().create(prefix, column);
    cf.addColumn(params.makeCounter(cname, -increment));
  }
}