protected Object readData( Layout index, DataType dataType) throws java.io.IOException {
   return IospHelper.readDataFill(raf, index, dataType, null, -1);
 }
protected Object readData( Layout index, DataType dataType) throws java.io.IOException {
   return IospHelper.readDataFill(raf, index, dataType, null, -1);
 }
protected Object readData ( Layout index , DataType dataType ) throws java . io . IOException { return IospHelper . readDataFill ( raf , index , dataType , null , - 1 ) ; }
Read data subset from file for a variable, create primitive array.
@param index handles skipping around in the file.
@param dataType dataType of the variable
@return primitive array with data read in
Read data subset from file for a variable create primitive array .