super();
final File file = new File("runtime/data");
final IRandomAccessFile drandomAccessFile = new RandomAccessFileDirectNio(
file, 0, 0);
try {
randomAccessFile = new RandomAccessFileReadWriteCache(
drandomAccessFile, pageSize, maxPage, true);
} catch (FileIOException exception) {
throw new HeapException(exception);
}
header.setBlockLength(blockLength);