{
_bytesSeenSoFar = 0;
}
//determine the content size
ByteBuffer content = (ByteBuffer) contentTB.entryToObject(value);
int contentSize = content.limit();
//create the new key: id + previously seen data count
MessageContentKey_5 newKey = new MessageContentKey_5(msgId, _bytesSeenSoFar);
DatabaseEntry newKeyEntry = new DatabaseEntry();