public Interval locate(DataColumn column, Integer intervalIndex) {
ColumnGroup columnGroup = column.getColumnGroup();
if (columnGroup == null) return null;
if (intervalIndex == null) return null;
IntervalListLabel intervalList = new IntervalListLabel(columnGroup);
intervalList.indexValues(column.getValues(), null);
if (intervalIndex >= intervalList.size()) return null;
return intervalList.get(intervalIndex);
}
public IntervalList build(DataColumn dataColumn) {
ColumnGroup columnGroup = dataColumn.getColumnGroup();
IntervalListLabel intervalList = new IntervalListLabel(columnGroup);
List values = dataColumn.getValues();
return intervalList.indexValues(values, null);
}
private void assertColumnIdAndType(DataSet result, String columnId, ColumnType columnType) {
DataColumn amountCol = result.getColumnById(columnId);
Assert.assertNotNull(amountCol);
Assert.assertEquals(amountCol.getColumnType(), columnType);
}