How to use

fireChangeEvent

method

in

org.jfree.chart.renderer.category.WaterfallBarRenderer

/**
 * Sets the paint that will be used to draw bars having positive values.
 *
 * @param paint  the paint (<code>null</code> not permitted).
 */
public void setPositiveBarPaint(Paint paint) {
  if (paint == null) {
    throw new IllegalArgumentException("Null 'paint' argument");
  }
  this.positiveBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw the first bar and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint (<code>null</code> not permitted).
 */
public void setFirstBarPaint(Paint paint) {
  if (paint == null) {
    throw new IllegalArgumentException("Null 'paint' argument");
  }
  this.firstBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw the last bar and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint (<code>null</code> not permitted).
 */
public void setLastBarPaint(Paint paint) {
  if (paint == null) {
    throw new IllegalArgumentException("Null 'paint' argument");
  }
  this.lastBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw bars having negative values,
 * and sends a {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint (<code>null</code> not permitted).
 */
public void setNegativeBarPaint(Paint paint) {
  if (paint == null) {
    throw new IllegalArgumentException("Null 'paint' argument");
  }
  this.negativeBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw bars having negative values,
 * and sends a {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint ({@code null} not permitted).
 */
public void setNegativeBarPaint(Paint paint) {
  Args.nullNotPermitted(paint, "paint");
  this.negativeBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw the last bar and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint ({@code null} not permitted).
 */
public void setLastBarPaint(Paint paint) {
  Args.nullNotPermitted(paint, "paint");
  this.lastBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw the first bar and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param paint  the paint ({@code null} not permitted).
 */
public void setFirstBarPaint(Paint paint) {
  Args.nullNotPermitted(paint, "paint");
  this.firstBarPaint = paint;
  fireChangeEvent();
}

/**
 * Sets the paint that will be used to draw bars having positive values.
 *
 * @param paint  the paint ({@code null} not permitted).
 */
public void setPositiveBarPaint(Paint paint) {
  Args.nullNotPermitted(paint, "paint");
  this.positiveBarPaint = paint;
  fireChangeEvent();
}