org.jfree.data
Interface Dataset

All Known Subinterfaces:

CategoryDataset, ContourDataset, HighLowDataset, IntervalCategoryDataset, IntervalXYDataset, IntervalXYZDataset, KeyedValueDataset, KeyedValues2DDataset, KeyedValuesDataset, MeterDataset, MultiIntervalCategoryDataset, PieDataset, SeriesDataset, SignalsDataset, StatisticalCategoryDataset, ValueDataset, WindDataset, XYDataset, XYZDataset

All Known Implementing Classes:

AbstractDataset, AbstractSeriesDataset, CategoryToPieDataset, CombinedDataset, DefaultCategoryDataset, DefaultContourDataset, DefaultHighLowDataset, DefaultIntervalCategoryDataset, DefaultKeyedValueDataset, DefaultKeyedValues2DDataset, DefaultKeyedValuesDataset, DefaultMeterDataset, DefaultPieDataset, DefaultStatisticalCategoryDataset, DefaultValueDataset, DefaultWindDataset, DynamicTimeSeriesCollection, JDBCXYDataset, SubSeriesDataset, TaskSeriesCollection, TimePeriodValuesCollection, TimeSeriesCollection, XYSeriesCollection

public interface Dataset

The base interface for data sets.

All datasets are required to support the DatasetChangeEvent mechanism by allowing listeners to register and receive notification of any changes to the dataset.

In addition, all datasets must belong to one (and only one) DatasetGroup. The group object maintains a reader-writer lock which provides synchronised access to the datasets in multi-threaded code.

Author:

David Gilbert

Method Summary

void	addChangeListener(DatasetChangeListener listener) Registers an object for notification of changes to the dataset.
DatasetGroup	getGroup() Returns the dataset group.
void	removeChangeListener(DatasetChangeListener listener) Deregisters an object for notification of changes to the dataset.
void	setGroup(DatasetGroup group) Sets the dataset group.

Method Detail

addChangeListener

public void addChangeListener(DatasetChangeListener listener)

Registers an object for notification of changes to the dataset.

Parameters:

listener - the object to register.

removeChangeListener

public void removeChangeListener(DatasetChangeListener listener)

Deregisters an object for notification of changes to the dataset.

Parameters:

listener - the object to deregister.

getGroup

public DatasetGroup getGroup()

Returns the dataset group.

Returns:

the dataset group.

setGroup

public void setGroup(DatasetGroup group)

Sets the dataset group.

Parameters:

group - the dataset group.