edu.upc.dama.dex.io
Interface RowReader

All Known Implementing Classes:

CSVReader, JDBCReader

public interface RowReader

Common interface for those readers which get the data as String [].

See Also:

CSVReader, JDBCReader

Author:

Sparsity Technologies

Method Summary

void	close() Closes the underlying reader.
int	getRow() The row number for the current row.
java.lang.String[]	readNext() Reads the next row as a string array.
boolean	reset() Moves the reader to the beginning.

Method Detail

reset

boolean reset()
              throws java.io.IOException

Moves the reader to the beginning.

Restarts the reader.

Returns:

true if the reader can be restarted, false otherwise.

Throws:

java.io.IOException - If bad things happen during the restart.

readNext

java.lang.String[] readNext()
                            throws java.io.IOException

Reads the next row as a string array.

Returns:

A string array with each comma-separated element as a separate entry.

Throws:

java.io.IOException - If bad things happen during the read.

getRow

int getRow()
           throws java.io.IOException

The row number for the current row.

Returns:

The current row number; 0 if there is no current row.

Throws:

java.io.IOException - If it fails.

close

void close()
           throws java.io.IOException

Closes the underlying reader.

Throws:

java.io.IOException - If the close fails.