How to use

getSubtask

method

in

org.jfree.data.gantt.Task

/**
 * Returns the percentage complete value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the sub-interval.
 *
 * @return The percent complete value (possibly {@code null}).
 */
@Override
public Number getPercentComplete(Comparable rowKey, Comparable columnKey,
                 int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      result = sub.getPercentComplete();
    }
  }
  return result;
}

/**
 * Returns the percentage complete value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the sub-interval.
 *
 * @return The percent complete value (possibly <code>null</code>).
 */
public Number getPercentComplete(Comparable rowKey, Comparable columnKey,
                 int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      result = sub.getPercentComplete();
    }
  }
  return result;
}

/**
 * Returns the end value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the subinterval.
 *
 * @return The end value (possibly {@code null}).
 */
@Override
public Number getEndValue(Comparable rowKey, Comparable columnKey,
             int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      TimePeriod duration = sub.getDuration();
      result = new Long(duration.getEnd().getTime());
    }
  }
  return result;
}

/**
 * Returns the start value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the subinterval.
 *
 * @return The start value (possibly {@code null}).
 */
@Override
public Number getStartValue(Comparable rowKey, Comparable columnKey,
              int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      TimePeriod duration = sub.getDuration();
      result = new Long(duration.getStart().getTime());
    }
  }
  return result;
}

/**
 * Returns the start value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the subinterval.
 *
 * @return The start value (possibly <code>null</code>).
 */
public Number getStartValue(Comparable rowKey, Comparable columnKey,
              int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      TimePeriod duration = sub.getDuration();
      result = new Long(duration.getStart().getTime());
    }
  }
  return result;
}

/**
 * Returns the end value of a sub-interval for a given item.
 *
 * @param rowKey  the row key.
 * @param columnKey  the column key.
 * @param subinterval  the subinterval.
 *
 * @return The end value (possibly <code>null</code>).
 */
public Number getEndValue(Comparable rowKey, Comparable columnKey,
             int subinterval) {
  Number result = null;
  int row = getRowIndex(rowKey);
  TaskSeries series = (TaskSeries) this.data.get(row);
  Task task = series.get(columnKey.toString());
  if (task != null) {
    Task sub = task.getSubtask(subinterval);
    if (sub != null) {
      TimePeriod duration = sub.getDuration();
      result = new Long(duration.getEnd().getTime());
    }
  }
  return result;
}