Package weka.gui.sql

Class ResultSetTableModel

java.lang.Object

weka.gui.sql.ResultSetTableModel

All Implemented Interfaces:

TableModel

public class ResultSetTableModel
extends Object
implements TableModel

The model for an SQL ResultSet.

Version:

$Revision$

Author:

FracPete (fracpete at waikato dot ac dot nz)

Constructor Summary

Constructors

Constructor	Description
ResultSetTableModel(ResultSet rs)	initializes the model, retrieves all rows.
ResultSetTableModel(ResultSet rs, int rows)	initializes the model, retrieves only the given amount of rows (0 means all).

Method Summary

Modifier and Type	Method	Description
void	addTableModelListener(TableModelListener l)	adds a listener to the list that is notified each time a change to data model occurs.
void	finalize()	frees up the memory.
Class<?>	getColumnClass(int columnIndex)	returns the most specific superclass for all the cell values in the column (always String).
int	getColumnCount()	returns the number of columns in the model.
String	getColumnName(int columnIndex)	returns the name of the column at columnIndex.
int	getRowCount()	returns the number of rows in the model.
Object	getValueAt(int rowIndex, int columnIndex)	returns the value for the cell at columnindex and rowIndex.
boolean	isCellEditable(int rowIndex, int columnIndex)	returns true if the cell at rowindex and columnindexis editable.
boolean	isNullAt(int rowIndex, int columnIndex)	checks whether the value of the cell is NULL.
boolean	isNumericAt(int columnIndex)	returns whether the column at the given index is numeric.
void	removeTableModelListener(TableModelListener l)	removes a listener from the list that is notified each time a change to the data model occurs.
void	setValueAt(Object aValue, int rowIndex, int columnIndex)	sets the value in the cell at columnIndex and rowIndex to aValue.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetTableModel

public ResultSetTableModel(ResultSet rs)

initializes the model, retrieves all rows.

Parameters:

rs - the ResultSet to get the data from

ResultSetTableModel

public ResultSetTableModel(ResultSet rs,
                           int rows)

initializes the model, retrieves only the given amount of rows (0 means all).

Parameters:

rs - the ResultSet to get the data from

rows - the maximum number of rows to retrieve, 0 retrieves all

Method Detail

addTableModelListener

public void addTableModelListener(TableModelListener l)

adds a listener to the list that is notified each time a change to data model occurs.

Specified by:

addTableModelListener in interface TableModel

Parameters:

l - the listener to add

getColumnClass

public Class<?> getColumnClass(int columnIndex)

returns the most specific superclass for all the cell values in the column (always String).

Specified by:

getColumnClass in interface TableModel

Parameters:

columnIndex - the index of the column

Returns:

the class

getColumnCount

public int getColumnCount()

returns the number of columns in the model.

Specified by:

getColumnCount in interface TableModel

Returns:

the number of columns

getColumnName

public String getColumnName(int columnIndex)

returns the name of the column at columnIndex.

Specified by:

getColumnName in interface TableModel

Parameters:

columnIndex - the index of the column

Returns:

the name

getRowCount

public int getRowCount()

returns the number of rows in the model.

Specified by:

getRowCount in interface TableModel

Returns:

the number of data rows

getValueAt

public Object getValueAt(int rowIndex,
                         int columnIndex)

returns the value for the cell at columnindex and rowIndex.

Specified by:

getValueAt in interface TableModel

Parameters:

rowIndex - the row of the cell

columnIndex - the column of the cell

Returns:

the data value

isNullAt

public boolean isNullAt(int rowIndex,
                        int columnIndex)

checks whether the value of the cell is NULL.

Parameters:

rowIndex - the row of the cell

columnIndex - the column of the cell

Returns:

true if the cell value is NULL

isNumericAt

public boolean isNumericAt(int columnIndex)

returns whether the column at the given index is numeric.

Parameters:

columnIndex - the column to check

Returns:

whether the column is numeric

isCellEditable

public boolean isCellEditable(int rowIndex,
                              int columnIndex)

returns true if the cell at rowindex and columnindexis editable.

Specified by:

isCellEditable in interface TableModel

Parameters:

rowIndex - the row of the cell

columnIndex - the column of the cell

Returns:

always false

removeTableModelListener

public void removeTableModelListener(TableModelListener l)

removes a listener from the list that is notified each time a change to the data model occurs.

Specified by:

removeTableModelListener in interface TableModel

Parameters:

l - the listener to remove

setValueAt

public void setValueAt(Object aValue,
                       int rowIndex,
                       int columnIndex)

sets the value in the cell at columnIndex and rowIndex to aValue. Ignored.

Specified by:

setValueAt in interface TableModel

Parameters:

aValue - the value to set - ignored

rowIndex - the row of the cell

columnIndex - the column of the cell

finalize

public void finalize()
              throws Throwable

frees up the memory.

Throws:

Throwable - if something goes wrong