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POJava - volatile variable is not updating
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  1. POJava - volatile variable is not updating
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    copied!<p>I'm working on an interactive sorting application in JavaFx:</p> <ul> <li>The numbers are represented by rectangles</li> <li>Every time two numbers are swapped the rectangles are swapped(using timeline - animation)</li> </ul> <p>This is one of the sorting algorithms:</p> <pre><code> public class BubbleSort implements SortAlgorithm { private volatile Boolean swaping; public void sort(double[] array, CompareFunction compareFunction, Model model, Controller controller) { Boolean ord; int i; double aux; swaping = false; do { ord = true; for (i = 0; i &lt; array.length - 1; i++) { if (compareFunction.compare(array[i], array[i + 1]) == false) { while (swaping); swaping = true; aux = array[i]; array[i] = array[i + 1]; array[i + 1] = aux; ord = false; controller.swapRectangles(model.getRectangles().get(i), model.getRectangles().get(i + 1), this); } } } while (ord == false); } public void setSwaping(Boolean swaping) { this.swaping = swaping; } </code></pre> <p>}</p> <p>This is the prototype of the swapRectangles method:</p> <pre><code>public void swapRectangles(final Rectangle rectangle1, final Rectangle rectangle2, final BubbleSort bubbleSort) </code></pre> <p>And when timeline ends I udpate "swaping" value:</p> <pre><code> timeline2.setOnFinished(new EventHandler&lt;ActionEvent&gt;() { @Override public void handle(ActionEvent actionEvent) { setRectangleFill(rectangle2, Color.BLACK); rectangle2.setX(rectangle1X); bubbleSort.setSwaping(false); } }); </code></pre> <p>The problem is that the "swaping" variable is never updating(the setSwaping method is never called).</p> <p>Do you know why? </p>
 

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