edu.udo.cs.yale.example
Class FloatArrayDataRow

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

All Implemented Interfaces:

DataRow

public class FloatArrayDataRow
extends java.lang.Object
implements DataRow

Implementation of DataRow that is backed by a float array. Please note that for most applications the precision of floats should be high enough. The highest precision is provided by DoubleArrayDataRows but these need the double amount compared to these float representations which are therefore a good trade-off between precision and memory usage.

Version:

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

Author:

Ingo Mierswa

Field Summary

private float[]

data Holds the data for all attributes.

Constructor Summary

FloatArrayDataRow(float[] 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 float[] data

Holds the data for all attributes.

Constructor Detail

FloatArrayDataRow

public FloatArrayDataRow(float[] 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