Calling a method on a component placed in a tab?

I create a tabbed pane. I create x number of tabs in it each with one component. Now I want to call a method on one of those components. How might I do this?
Here was my thought but it is giving me a nullPointerException at the line where I call temp.buildChart(). I guessing that I am not doing this right?
for (int i = 0; i < graphTabs.getTabCount(); i++){
 ChartPlotter temp;
 temp = (ChartPlotter)graphTabs.getTabComponentAt(i);
 temp.buildChart();
 graphTabs.setEnabledAt(i, true);
 }Edit: If it matters any the component of the tab is a JPanel that displays three charts.
Edited by: Sch104 on Jul 1, 2008 12:38 PM

Didn't completely fix the error, but I placed the buildChart() call somewhere else that made sense.
Edited by: Sch104 on Jul 2, 2008 7:37 AM

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"happybrowndog" <[email protected]> wrote in
message
news:gctmql$4t5$[email protected]..
> That's goddamned ridiculous. What were Flex developers
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> have
> to write a custom event to call back to a parent
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