DataFrameListener (Macrofocus MOLAP API for Swing SpecificationMOLAP is a Multidimensional, Open-Source, In-Memory, Object-Oriented, and Embeddable API for aggregating datathrough computationally efficient multidimensional cubes developed by Macrofocus. It supports the usualdrill-down, drill-up, slicing, dicing, and pivot operations, alongside a wide choice of built-inaggregation functions, with many additional distinctive features.A good and efficient starting point is the use of the {@link com.macrofocus.molap.dataframe.DataFrameFactory} class. It will get you started within minutes!)

Type Parameters:

R - the type of row keys

C - the type of column keys
```
public interface DataFrameListener<R,C>
```
The listener interface for receiving "interesting" events about a selection.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`dataFrameChanged(DataFrameEvent<R,C> event)`	Called whenever the structure or the values of the data frame changes.

- Method Detail
  - dataFrameChanged
```
void dataFrameChanged(DataFrameEvent<R,C> event)
```
    Called whenever the structure or the values of the data frame changes.
    
    Parameters:
    
    event - the event that characterizes the change.