How to use

fireDatasetChanged

method

in

org.jfree.data.xy.VectorSeriesCollection

/**
 * Removes all the series from the collection and sends a
 * {@link DatasetChangeEvent} to all registered listeners.
 */
public void removeAllSeries() {
  // deregister the collection as a change listener to each series in the
  // collection
  for (int i = 0; i < this.data.size(); i++) {
    VectorSeries series = (VectorSeries) this.data.get(i);
    series.removeChangeListener(this);
  }
  // remove all the series from the collection and notify listeners.
  this.data.clear();
  fireDatasetChanged();
}

/**
 * Adds a series to the collection and sends a {@link DatasetChangeEvent}
 * to all registered listeners.
 *
 * @param series  the series (<code>null</code> not permitted).
 */
public void addSeries(VectorSeries series) {
  if (series == null) {
    throw new IllegalArgumentException("Null 'series' argument.");
  }
  this.data.add(series);
  series.addChangeListener(this);
  fireDatasetChanged();
}

/**
 * Removes all the series from the collection and sends a
 * {@link DatasetChangeEvent} to all registered listeners.
 */
public void removeAllSeries() {
  // deregister the collection as a change listener to each series in the
  // collection
  for (int i = 0; i < this.data.size(); i++) {
    VectorSeries series = (VectorSeries) this.data.get(i);
    series.removeChangeListener(this);
  }
  // remove all the series from the collection and notify listeners.
  this.data.clear();
  fireDatasetChanged();
}

/**
 * Removes the specified series from the collection and sends a
 * {@link DatasetChangeEvent} to all registered listeners.
 *
 * @param series  the series (<code>null</code> not permitted).
 *
 * @return A boolean indicating whether the series has actually been
 *         removed.
 */
public boolean removeSeries(VectorSeries series) {
  if (series == null) {
    throw new IllegalArgumentException("Null 'series' argument.");
  }
  boolean removed = this.data.remove(series);
  if (removed) {
    series.removeChangeListener(this);
    fireDatasetChanged();
  }
  return removed;
}

/**
 * Adds a series to the collection and sends a {@link DatasetChangeEvent}
 * to all registered listeners.
 *
 * @param series  the series ({@code null} not permitted).
 */
public void addSeries(VectorSeries series) {
  Args.nullNotPermitted(series, "series");
  this.data.add(series);
  series.addChangeListener(this);
  fireDatasetChanged();
}

/**
 * Removes the specified series from the collection and sends a
 * {@link DatasetChangeEvent} to all registered listeners.
 *
 * @param series  the series ({@code null} not permitted).
 *
 * @return A boolean indicating whether the series has actually been
 *         removed.
 */
public boolean removeSeries(VectorSeries series) {
  Args.nullNotPermitted(series, "series");
  boolean removed = this.data.remove(series);
  if (removed) {
    series.removeChangeListener(this);
    fireDatasetChanged();
  }
  return removed;
}