de.erichseifert.gral.data.statistics

Class AbstractHistogram2D

java.lang.Object

de.erichseifert.gral.data.AbstractDataSource

de.erichseifert.gral.data.statistics.AbstractHistogram2D

All Implemented Interfaces:

DataListener, DataSource, java.io.Serializable, java.lang.Iterable<java.lang.Comparable<?>>

Direct Known Subclasses:

Histogram2D

public abstract class AbstractHistogram2D
extends AbstractDataSource
implements DataListener

Abstract base class for histograms. Derived classes must make sure the getColumnTypes() method returns a correct array with column types.

See Also:

AbstractDataSource.setColumnTypes(Class...), Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractHistogram2D(DataSource data) Initializes a new histograms with a data source.

Method Summary

Modifier and Type	Method and Description
void	dataAdded(DataSource source, DataChangeEvent... events) Method that is invoked when data has been added.
void	dataRemoved(DataSource source, DataChangeEvent... events) Method that is invoked when data has been removed.
void	dataUpdated(DataSource source, DataChangeEvent... events) Method that is invoked when data has been updated.
DataSource	getData() Returns the data source associated to this histogram.

Methods inherited from class de.erichseifert.gral.data.AbstractDataSource

addDataListener, getColumn, getColumnCount, getColumnStatistics, getColumnTypes, getName, getRecord, getRow, getRowStatistics, getStatistics, isColumnNumeric, iterator, removeDataListener

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.erichseifert.gral.data.DataSource

get, getRowCount

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

AbstractHistogram2D

public AbstractHistogram2D(DataSource data)

Initializes a new histograms with a data source.

Parameters:

data - Data source to be analyzed.

Method Detail

dataAdded

public void dataAdded(DataSource source,
                      DataChangeEvent... events)

Method that is invoked when data has been added. This method is invoked by objects that provide support for DataListeners and should not be called manually.

Specified by:

dataAdded in interface DataListener

Parameters:

source - Data source that has been changed.

events - Optional event object describing the data values that have been added.

dataUpdated

public void dataUpdated(DataSource source,
                        DataChangeEvent... events)

Method that is invoked when data has been updated. This method is invoked by objects that provide support for DataListeners and should not be called manually.

Specified by:

dataUpdated in interface DataListener

Parameters:

source - Data source that has been changed.

events - Optional event object describing the data values that have been updated.

dataRemoved

public void dataRemoved(DataSource source,
                        DataChangeEvent... events)

Method that is invoked when data has been removed. This method is invoked by objects that provide support for DataListeners and should not be called manually.

Specified by:

dataRemoved in interface DataListener

Parameters:

source - Data source that has been changed.

events - Optional event object describing the data values that have been removed.

getData

public DataSource getData()

Returns the data source associated to this histogram.

Returns:

Data source