number formatting - JFreeChart LogAxis Frequency/Resistance multipliers -

i'm trying figure out how dynamically format values on axes of line chart based on multiplier.

i'm using logaxis both x , y axes, follows:

  final logaxis rangeaxis = new logaxis(valueaxislabel);   rangeaxis.setstandardtickunits(logaxis.createlogtickunits(locale.english));   rangeaxis.setrange(0.01, 10.0);  //10 mohms 10 ohms   plot.setrangeaxis(rangeaxis);    final logaxis domainaxis = new logaxis(frequencyaxislabel);   domainaxis.setstandardtickunits(logaxis.createlogtickunits(locale.english));   domainaxis.setrange(100, 10000000); //100hz 10mhz   plot.setdomainaxis(domainaxis); 

i have following values on y axis:
0.01, 0.1, 1, 10
display as
10mohm, 100mohm, 1ohm, 10ohm

and on x axis have
100, 1,000, 10,000, 100,000, 1,000,000, 10,000,000
see
100hz, 1khz, 10khz, 100khz, 1mhz, 10mhz

i know can override numberformat used on axis, haven't found way numberformat overridden dynamically based on value this. possible? need extend numberformat this?

edit: per accepted answer, extended numberformat follows (note implementation isn't complete rather hacked quick demo purposes boss)

public class unitnumberformat extends numberformat {    /**     *      */    private static final long serialversionuid = -8544764432101798895l;     private unitvalue unitvalue;      public unitnumberformat(unitvalue unitvalue)    {       super();       this.unitvalue = unitvalue;    }      /*     * (non-javadoc)     * @see java.text.numberformat#format(double, java.lang.stringbuffer,     * java.text.fieldposition)     */    @override    public stringbuffer format(double number, stringbuffer toappendto, fieldposition pos)    {       stringbuffer formattedvalue = new stringbuffer();       bigdecimal bd = new bigdecimal(number);       bigdecimal multiplier = new bigdecimal(1);       string multiplierstring = "";       if(number < 1 && number > 0)       {          multiplier = new bigdecimal(1000);          multiplierstring = "m";       }       else if(number < 1000 && number >= 1)       {          multiplier = new bigdecimal(1);          multiplierstring = "";       }       else if(number < 1000000 && number >= 1000)       {          multiplier = new bigdecimal(1. / 1000);          multiplierstring = "k";       }       else if(number < 1000000000 && number >= 1000000)       {          multiplier = new bigdecimal(1. / 1000000);          multiplierstring = "m";       }       else       {          throw new numberformatexception("this formatter doesn't yet support values beyond mega");       }        bd = bd.multiply(multiplier).round(new mathcontext(1, roundingmode.half_up));        formattedvalue.append(bd.toplainstring());       formattedvalue.append(" ");       formattedvalue.append(multiplierstring);       formattedvalue.append(this.unitvalue.getunit());        return formattedvalue;    }      /*     * (non-javadoc)     * @see java.text.numberformat#format(long, java.lang.stringbuffer,     * java.text.fieldposition)     */    @override    public stringbuffer format(long number, stringbuffer toappendto, fieldposition pos)    {       return null;    }      /*     * (non-javadoc)     * @see java.text.numberformat#parse(java.lang.string,     * java.text.parseposition)     */    @override    public number parse(string source, parseposition parseposition)    {       return null;    }  } 

and unitvalue follows:

public enum unitvalue {    hertz("hz"),     ohms("Ω"),     ;     private final string unit;      private unitvalue(string unit)    {       this.unit = unit;    }      /**     * @return unit     */    public string getunit()    {       return unit;    } } 

yes need subclass numberformat there example here