edu.udo.cs.yale.datatable
Class AbstractDataTable

java.lang.Object
  edu.udo.cs.yale.datatable.AbstractDataTable

All Implemented Interfaces:

DataTable

Direct Known Subclasses:

DataTableExampleSetAdapter, DataTableKernelModelAdapter, SimpleDataTable

public abstract class AbstractDataTable
extends java.lang.Object
implements DataTable

This abstract data table implementation provides some default implementations for data tables like listener handling. The method fireEvent() can be used to promote changes to all listeners. In addition, IO methods are also provided by this abstract implementation.

Version:

$Id: AbstractDataTable.java,v 1.5 2006/09/24 13:05:06 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private java.util.List<DataTableListener>

listeners The list of data table listeners.

Constructor Summary

AbstractDataTable()

Method Summary

void	addDataTableListener(DataTableListener dataTableListener) Adds a table listener listening for data changes.
boolean	containsMissingValues() Returns true if this data table contains missing values.
protected void	fireEvent()
java.lang.String[]	getColumnNames() Returns an array of all column names.
java.lang.String	getValueAsString(DataTableRow row, int column) Must deliver the proper value as string, i.e. the mapped value for nominal columns.
void	removeDataTableListener(DataTableListener dataTableListener) Removes the given listener from the list of data change listeners.
void	write(java.io.PrintWriter out) Writes the table into the given writer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.udo.cs.yale.datatable.DataTable

add, getColumnIndex, getColumnName, getColumnWeight, getName, getNumberOfColumns, getNumberOfRows, getNumberOfSpecialColumns, getNumberOfValues, getRow, isNominal, isSpecial, isSupportingColumnWeights, iterator, mapIndex, mapString, sample

Field Detail

listeners

private java.util.List<DataTableListener> listeners

The list of data table listeners.

Constructor Detail

AbstractDataTable

public AbstractDataTable()

Method Detail

getColumnNames

public java.lang.String[] getColumnNames()

Description copied from interface: DataTable

Returns an array of all column names.

Specified by:

getColumnNames in interface DataTable

addDataTableListener

public void addDataTableListener(DataTableListener dataTableListener)

Description copied from interface: DataTable

Adds a table listener listening for data changes.

Specified by:

addDataTableListener in interface DataTable

removeDataTableListener

public void removeDataTableListener(DataTableListener dataTableListener)

Description copied from interface: DataTable

Removes the given listener from the list of data change listeners.

Specified by:

removeDataTableListener in interface DataTable

fireEvent

protected void fireEvent()

getValueAsString

public java.lang.String getValueAsString(DataTableRow row,
                                         int column)

Description copied from interface: DataTable

Must deliver the proper value as string, i.e. the mapped value for nominal columns.

Specified by:

getValueAsString in interface DataTable

write

public void write(java.io.PrintWriter out)
           throws java.io.IOException

Description copied from interface: DataTable

Writes the table into the given writer.

Specified by:

write in interface DataTable

Throws:

java.io.IOException

containsMissingValues

public boolean containsMissingValues()

Description copied from interface: DataTable

Returns true if this data table contains missing values.

Specified by:

containsMissingValues in interface DataTable