jas.hist.normalization
Class DataSourceNormalizer

java.lang.Object
  java.util.Observable
      jas.hist.normalization.SimpleNormalizer
          jas.hist.normalization.DataSourceNormalizer

All Implemented Interfaces:

Normalizer, Observer

Direct Known Subclasses:

AreaNormalizer, BinNormalizer, MaxBinNormalizer, StatisticsNormalizer

public abstract class DataSourceNormalizer
extends SimpleNormalizer
implements Observer

A base class for Normalizers which depend upon a DataSource

Version:

$Id: DataSourceNormalizer.java 11553 2007-06-05 22:06:23Z duns $

Author:

tonyj

Field Summary

protected boolean	hurry
protected DataSource	source

Constructor Summary

DataSourceNormalizer(DataSource source)
Creates a new DataSourceNormalizer

Method Summary

protected abstract double	calculateNormalization() Calculates the normalization factor.
double	getNormalizationFactor() The displayed data will be divided by this factor
protected void	init() To be called by superclasses, typically at the end of the constructor.
void	update(Observable obs, Object arg)

Methods inherited from class jas.hist.normalization.SimpleNormalizer

normalizationChanged, setFactor

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

hurry

protected boolean hurry

source

protected DataSource source

Constructor Detail

DataSourceNormalizer

public DataSourceNormalizer(DataSource source)

Creates a new DataSourceNormalizer

Parameters:

source - The Data Source

Method Detail

init

protected void init()

To be called by superclasses, typically at the end of the constructor.

update

public void update(Observable obs,
                   Object arg)

Specified by:

update in interface Observer

getNormalizationFactor

public double getNormalizationFactor()

Description copied from interface: Normalizer

The displayed data will be divided by this factor

Specified by:

getNormalizationFactor in interface Normalizer

Overrides:

getNormalizationFactor in class SimpleNormalizer

calculateNormalization

protected abstract double calculateNormalization()

Calculates the normalization factor.

Returns:

The normalization factor.