Module org.refcodes.io

Package org.refcodes.io

Interface RowReader<T>

All Superinterfaces:

AutoCloseable

public interface RowReader<T>
extends AutoCloseable

A RowReader reads a set of elements (a row) from an external source.

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Determines whether a next element can be read.
String	nextRaw()	Reads the next row and returns it as is ("raw").
T	nextRow()	Reads the next element.

Methods inherited from interface java.lang.AutoCloseable

close

Method Details

hasNext

boolean hasNext()

Determines whether a next element can be read.

Returns:

True in case there is a next element, false if not.

nextRow

T nextRow()
   throws IOException

Reads the next element.

Returns:

The next element being read.

Throws:

IOException - thrown in case there was an I/O related problem.

NoSuchElementException - thrown in case there is none next element to be read (check with hasNext() if there is actually a next element which can be read).

nextRaw

String nextRaw()

Reads the next row and returns it as is ("raw"). This is useful when encountering a conversion problem or format problem regarding one line in a CSV file and this erroneous line is to be addressed separately.

Returns:

The next raw line "as is".