net.sf.jameleon.data
Interface DataDriver

All Known Implementing Classes:

CollectionDataDriver, CsvDataDriver, SqlDataDriver

public interface DataDriver

This interface is used to implement different ways to get data from a source. Some examples might be a database, an xml file or even an Excel spreadsheet (besides just using a CSV file).

Method Summary

void	close() Closes the handle to the data source
Map	getNextRow() Gets the next row from the data source
boolean	hasMoreRows() Tells whether the data source has another row
void	open() Opens the handle to the data source

Method Detail

open

void open()
          throws IOException

Opens the handle to the data source

Throws:

IOException - when the data source can not be found.

close

void close()

Closes the handle to the data source

getNextRow

Map getNextRow()

Gets the next row from the data source

Returns:

a key-value HashMap representing the data row or null if no data row is available

hasMoreRows

boolean hasMoreRows()

Tells whether the data source has another row

Returns:

true if the data source still has more rows