org.grouplens.lenskit.util.table.writer

Class AbstractTableWriter

java.lang.Object

org.grouplens.lenskit.util.table.writer.AbstractTableWriter

All Implemented Interfaces:

Closeable, AutoCloseable, TableWriter

Direct Known Subclasses:

CSVWriter, TableBuilder

public abstract class AbstractTableWriter
extends Object
implements TableWriter

Abstract helper class for implementing table writers.

Since:

1.1

Constructor Summary

Constructors

Constructor and Description
AbstractTableWriter()

Method Summary

Modifier and Type	Method and Description
protected void	checkRowWidth(int width) Check the width of a row to see if it is too wide.
void	close() No-op close implementaiton.
void	writeRow(Object... row) Write a row to the table.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.grouplens.lenskit.util.table.writer.TableWriter

getLayout, writeRow

Constructor Detail

AbstractTableWriter

public AbstractTableWriter()

Method Detail

writeRow

public void writeRow(Object... row)
              throws IOException

Write a row to the table. This method is thread-safe. This implementation delegates to TableWriter.writeRow(java.util.List).

Specified by:

writeRow in interface TableWriter

Parameters:

row - A row of values. If the table requires more columns, the remaining columns are empty. The row is copied if necessary; the caller is free to re-use the same array for returnValue calls.

Throws:

IOException - if an error occurs writing the row.

checkRowWidth

protected void checkRowWidth(int width)

Check the width of a row to see if it is too wide. This formats the exception with a helpful error message.

Parameters:

width - The row width.

Throws:

IllegalArgumentException - if the row is too wide.

close

public void close()
           throws IOException

No-op close implementaiton.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface TableWriter

Throws:

IOException