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From: Jeff Higgins <jeff@invalid.invalid>
Newsgroups: comp.lang.c,comp.lang.java.programmer
Subject: Re: Self-updating relationship
Date: Thu, 03 Sep 2015 01:22:26 -0400
Organization: A noiseless patient Spider
Lines: 34
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References: <relationship-20150902211808@ram.dialup.fu-berlin.de> <55E766BD.3060303@verizon.net> <spaces-20150902222406@ram.dialup.fu-berlin.de> <55E77D04.6080200@verizon.net> <ms8fbm$mbo$1@dont-email.me>
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Xref: csiph.com comp.lang.c:69054 comp.lang.java.programmer:32486

On 09/02/2015 11:38 PM, Jeff Higgins wrote:

> import javafx.beans.property.IntegerProperty;
> import javafx.beans.property.SimpleIntegerProperty;
>
> public class Main
> { public static void main(String[] args)
>    {
>
>      final IntegerProperty height
>      = new SimpleIntegerProperty();
>
>      final IntegerProperty number
>      = new SimpleIntegerProperty();
>
>      final IntegerProperty spaces
>      = new SimpleIntegerProperty();
>
>      spaces.bind(height.subtract(number));
>
>      height.set(10);
>      number.set(2);
>      System.out.print(spaces.get()); // 8
>
>      spaces.unbind();
>      height.set(20);
>      System.out.print(spaces.get()); // 8
>
> } }

So, if I take spaces to be a spreadsheet cell with an Observable value
it's a pretty simple matter to bind it to any of my CellFormula(s) which
are also Observable values of a type compatible with the spaces cell.