How to use

get

method

in

krati.core.array.basic.DynamicIntArray

@Override
public int[] get(int index) {
 int val = mainArray.get(index);
 if(val < 0) {
  int dbIndex = dbIndexDecode(val);
  if(internalDB.hasIndex(dbIndex)) {
   byte[] dat = internalDB.get(dbIndex);
   
   if(dat == null || dat.length == 0) {
    return new int[0];
   }
   
   int[] result = new int[dat.length / NUM_BYTES_IN_INT];
   ByteBuffer bb = ByteBuffer.wrap(dat);
   for(int i = 0; i < result.length; i++) {
    result[i] = bb.getInt();
   }
   
   return result;
  }
 }
 
 if(val > 0) {
  return new int[] { val };
 }
 
 return new int[0];
}

/**
 * Sync-up the high water mark to a given value.
 * 
 * @param endOfPeriod
 */
@Override
public void saveHWMark(long endOfPeriod) {
  if (getHWMark() < endOfPeriod) {
    try {
      set(0, get(0), endOfPeriod);
    } catch(Exception e) {
      _log.error("Failed to saveHWMark " + endOfPeriod, e);
    }
  } else if(0 < endOfPeriod && endOfPeriod < getLWMark()) {
    try {
      _entryManager.sync();
    } catch(Exception e) {
      _log.error("Failed to saveHWMark" + endOfPeriod, e);
    }
    _entryManager.setWaterMarks(endOfPeriod, endOfPeriod);
  }
}

/**
 * Sync-up the high water mark to a given value.
 * 
 * @param endOfPeriod
 */
@Override
public void saveHWMark(long endOfPeriod) {
  if (getHWMark() < endOfPeriod) {
    try {
      set(0, get(0), endOfPeriod);
    } catch(Exception e) {
      _log.error("Failed to saveHWMark " + endOfPeriod, e);
    }
  } else if(0 < endOfPeriod && endOfPeriod < getLWMark()) {
    try {
      _entryManager.sync();
    } catch(Exception e) {
      _log.error("Failed to saveHWMark" + endOfPeriod, e);
    }
    _entryManager.setWaterMarks(endOfPeriod, endOfPeriod);
  }
}

@Override
public int getCount(int index) {
 if(mainArray.hasIndex(index)) {
  int val = mainArray.get(index);
  
  if (val > 0) {
   return 1;
  }
  
  if (val < 0) {
   int dbIndex = dbIndexDecode(val);
   return internalDB.hasIndex(dbIndex) ? (Math.max(0, internalDB.getLength(dbIndex)) / NUM_BYTES_IN_INT) : 0;
  }
 }
 
 return 0;
}

@Override
public void delete(int index, long scn) throws Exception {
 if(!mainArray.hasIndex(index)) {
  return;
 }
 
 int val = mainArray.get(index);
 if(val < 0) {
  int dbIndex = dbIndexDecode(val);
  if(internalDB.hasIndex(dbIndex)) {
   internalDB.set(dbIndex, null, scn);
  }
 }
 
 mainArray.set(index, 0, scn);
 internalPersist(scn);
}

@Override
public synchronized void remove(int index, int elemId, long scn) throws Exception {
 if(!mainArray.hasIndex(index)) {
  return;
 }
 
 int val = mainArray.get(index);
 if(val < 0) {
  int dbIndex = dbIndexDecode(val);
  if(internalDB.hasIndex(dbIndex)) {
   removeInternal(index, dbIndex, elemId, scn);
   internalPersist(scn);
   return;
  }
 }
 
 if(val < 0 || val == elemId) {
  mainArray.set(index, 0, scn);
 }
 
 internalPersist(scn);
}

@Override
public synchronized void add(int index, int elemId, long scn) throws Exception {
 assertPositive(elemId);
 mainArray.expandCapacity(index);
 
 int val = mainArray.get(index);
 if(val < 0) {
  int dbIndex = dbIndexDecode(val);
  if(internalDB.hasIndex(dbIndex)) {
   addInternal(dbIndex, elemId, scn);
   internalPersist(scn);
   return;
  }
 }
 
 if(val <= 0) {
  mainArray.set(index, elemId, scn);
 } else if(val != elemId) {
  int[] elems = { val, elemId };
  int dbIndex = internalDB.add(bytes(elems), scn);
  mainArray.set(index, dbIndexEncode(dbIndex), scn);
 }
 
 internalPersist(scn);
}

mainArray.expandCapacity(index);
int val = mainArray.get(index);
if(val < 0) {
 int dbIndex = dbIndexDecode(val);