@Override
public ReadResult read() {
AbstractCursor<Column> cursor = getCursorWithResults();
if (cursor == null) return new ReadResult(); // no more data to read
return translate(cursor.getCurrent());
}
protected AbstractCursor<Column> getCursorWithResults() {
if (cursor != null && cursor.next()) {
return cursor;
} else if (currentIndex >= existingPartitions.size()) return null;
int count = 0;
do {
Long currentPartId = existingPartitions.get(currentIndex);
NoSqlTypedSession em = mgr.getTypedSession();
NoSqlSession raw = em.getRawSession();
byte[] rowKeyPostFix =
meta.getIdColumnMeta().convertToStorage2(new BigInteger("" + currentPartId));
byte[] rowKey = meta.getIdColumnMeta().formVirtRowKey(rowKeyPostFix);
cursor = raw.columnSlice(meta, rowKey, startBytes, endBytes, 500, BigInteger.class);
currentIndex++;
if (cursor.next()) return cursor;
count++;
} while (!hasReachedEnd(end));
// reached end and no data found
return null;
}
