com.sparsity.sparksee.io

Class RowReader

java.lang.Object

com.sparsity.sparksee.io.RowReader

Direct Known Subclasses:

CSVReader

public class RowReader
extends java.lang.Object

RowReader interface.

Common interface for those readers which get the data as an string array.

It works as follows: perform as many read operations as necessary and call close once at the end. Once close is called no more read operations can be executed.

Check out the 'Data import' section in the SPARKSEE User Manual for more details on this.

Author:

Sparsity Technologies http://www.sparsity-technologies.com

Method Summary

Modifier and Type	Method and Description
void	close() Closes the reader.
int	getRow() The row number for the current row.
boolean	read(StringList row) Reads the next row as a string array.
boolean	reset() Moves the reader to the beginning.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

close

public void close()
           throws java.io.IOException

Closes the reader.

Throws:

java.io.IOException - If the close fails.

reset

public 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.

read

public boolean read(StringList row)
             throws java.io.IOException

Reads the next row as a string array.

Parameters:

row - [out] A string list with each comma-separated element as a separate entry.

Returns:

Returns true if a row had been read or false otherwise.

Throws:

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

getRow

public 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.