edu.udo.cs.yale.example
Class SparseMapDataRow

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

All Implemented Interfaces:

DataRow

public class SparseMapDataRow
extends java.lang.Object
implements DataRow

Implementation of DataRow that is backed by a HashMap. Usually using the DoubleSparseArrayDataRow should be more efficient.

Version:

$Id: SparseMapDataRow.java,v 2.15 2006/03/27 13:21:58 ingomierswa Exp $

Author:

Ingo Mierswa, Simon Fischer

Field Summary

private java.util.Map<java.lang.Integer,java.lang.Double>

data Maps the indices of attributes to the data.

Constructor Summary

SparseMapDataRow()

Method Summary

void	ensureNumberOfColumns(int numberOfColumns) Does nothing.
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 java.util.Map<java.lang.Integer,java.lang.Double> data

Maps the indices of attributes to the data.

Constructor Detail

SparseMapDataRow

public SparseMapDataRow()

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)

Does nothing.

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