edu.udo.cs.yale.example
Class ByteArrayDataRow

java.lang.Object
  edu.udo.cs.yale.example.ByteArrayDataRow

All Implemented Interfaces:

DataRow

public class ByteArrayDataRow
extends java.lang.Object
implements DataRow

Implementation of DataRow that is backed by a byte array. Please note that using this data row is quite efficient but only supports 256 different values (integers between 0 and 256 or 256 different nominal values for each column).

Version:

$Id: ByteArrayDataRow.java,v 2.1 2006/08/11 09:03:51 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private byte[]

data Holds the data for all attributes.

Constructor Summary

ByteArrayDataRow(byte[] data)
Creates a new data row backed by an primitive array.

Method Summary

void	ensureNumberOfColumns(int numberOfColumns) Creates a new array of the given size if necessary and copies the data into the new array.
double	get(Attribute attribute) Returns the desired data for the given attribute.
void	set(Attribute attribute, double value) Sets the given data for the given attribute.
java.lang.String	toString() Returns a string representation of the data row.
void	trim() Does nothing.

Methods inherited from class java.lang.Object

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

Field Detail

data

private byte[] data

Holds the data for all attributes.

Constructor Detail

ByteArrayDataRow

public ByteArrayDataRow(byte[] data)

Creates a new data row backed by an primitive array.

Method Detail

get

public double get(Attribute attribute)

Returns the desired data for the given attribute.

Specified by:

get in interface DataRow

set

public void set(Attribute attribute,
                double value)

Sets the given data for the given attribute.

Specified by:

set in interface DataRow

ensureNumberOfColumns

public void ensureNumberOfColumns(int numberOfColumns)

Creates a new array of the given size if necessary and copies the data into the new array.

Specified by:

ensureNumberOfColumns in interface DataRow

trim

public void trim()

Does nothing.

Specified by:

trim in interface DataRow

toString

public java.lang.String toString()

Returns a string representation of the data row.

Overrides:

toString in class java.lang.Object