public ExtendedSSTRecord(int newNumberOfStrings) 
{
  
    super(Type.EXTSST);
    numberOfStrings = newNumberOfStrings;
    int numberOfBuckets = getNumberOfBuckets();
    absoluteStreamPositions = new int[numberOfBuckets];
    relativeStreamPositions = new int[numberOfBuckets];
    currentStringIndex = 0;
}

Constructor

Parameters:

numstrings - the number of strings per bucket

streampos - the absolute stream position of the beginning of the SST record

 public  void addString(int absoluteStreamPosition,
    int relativeStreamPosition) 
{
    absoluteStreamPositions[currentStringIndex] = 
      absoluteStreamPosition + relativeStreamPosition;
    relativeStreamPositions[currentStringIndex] = relativeStreamPosition;
    currentStringIndex++;
}

 public byte[] getData() 
{
    int numberOfBuckets = getNumberOfBuckets();
    byte[] data = new byte[2 + (8 * numberOfBuckets)];
    // number of strings per bucket
    IntegerHelper.getTwoBytes(getNumberOfStringsPerBucket(), data, 0);
    for (int i = 0; i <  numberOfBuckets; i++) 
    {
      // absolute stream position
      IntegerHelper.getFourBytes(absoluteStreamPositions[i], 
                                 data, 
                                 2 + (i * infoRecordSize));
      // relative offset
      IntegerHelper.getTwoBytes(relativeStreamPositions[i], 
                                data, 
                                6 + (i * infoRecordSize));
      // reserved
      // IntegerHelper.getTwoBytes(0x0, data, 8 + (i * infoRecordSize));
    }
    return data;
}

Gets the binary data to be written out

 public int getNumberOfBuckets() 
{
    int numberOfStringsPerBucket = getNumberOfStringsPerBucket();
    return numberOfStringsPerBucket != 0 ?
      (numberOfStrings + numberOfStringsPerBucket - 1) / 
      numberOfStringsPerBucket : 0;
}

 public int getNumberOfStringsPerBucket() 
{
    // XXX
    // should come up with a more clever calculation
    // bucket limit should not be bigger than 1024, otherwise we end
    // up with too many buckets and would have to write continue records
    // for the EXTSST record which we want to avoid for now.
    final int bucketLimit = 128;
    return (numberOfStrings + bucketLimit - 1) / bucketLimit;
}