public void importFrom(DataInputStream in) throws IOException {
  seqId=in.readInt();
  nRows=info.isRowBlockEnabled() ? in.readInt() : 1;
  importFrom(in,primaryKey);
  for (int i=0; i < info.colBlocks.length; i++) {
    ByteArray cb=cellBlocks[i];
    importFrom(in,cb);
  }
}

public void importFrom ( DataInputStream in ) throws IOException { seqId = in . readInt ( ) ; nRows = info . isRowBlockEnabled ( ) ? in . readInt ( ) : 1 ; importFrom ( in , primaryKey ) ; for ( int i = 0 ; i < info . colBlocks . length ; i ++ ) { ByteArray cb = cellBlocks [ i ] ; importFrom ( in , cb ) ; } }
read data from given input stream , like deserialize
