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JavaTM 2 Platform Std. Ed. v1.3 |
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java.lang.Object
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+--java.awt.Component
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+--java.awt.Container
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+--javax.swing.JComponent
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+--javax.swing.JTable
JTable is a user-interface component that presents data in
a two-dimensional table format.
See How to Use Tables
in The Java Tutorial
for task-oriented documentation and examples of using JTable.
The JTable has many
facilities that make it possible to customize its rendering and editing
but provides defaults for these features so that simple tables can be
set up easily. For example, to set up a table with 10 rows and 10
columns of numbers:
TableModel dataModel = new AbstractTableModel() {
public int getColumnCount() { return 10; }
public int getRowCount() { return 10;}
public Object getValueAt(int row, int col) { return new Integer(row*col); }
};
JTable table = new JTable(dataModel);
JScrollPane scrollpane = new JScrollPane(table);
Because the JTable is now much easier to set up with custom models
the DefaultTableModel is less useful than it was in previous releases.
Instead of copying the data in an application into the DefaultTableModel,
we recommend wrapping it in the methods of the TableModel interface and
passing the real data to the JTable as above. This technique is nearly as concise
as using a DefaultTableModel and starting this way has a number of advantages
over the longer term. In particular: it is a scalable technique,
can more easily handle dynamic or editable tables, and often results in much
more efficient applications because the model is free to choose the
internal representation that best suits the data.
The "Table" directory in the examples/demo area gives a number of complete
examples of JTable usage, covering how the JTable can be used to provide
an editable view of data taken from a database and how to modify the columns
in the display to use specialized renderers and editors. For example, overriding
AbstractTableModel's getColumnClass method to return a value of
ImageIcon.class for a given column allows icons to be displayed,
while returning a value of Number.class allows digits to be
right-justified in the column.
The JTable uses integers exclusively to refer to both the rows and the columns
of the model that it displays. The JTable simply takes a tabular range of cells
and uses getValueAt(int, int) to retrieve and display the appropriate
values from the model.
If getTableHeader().setReorderingAllowed(boolean) is used to
enable column reordering columns may be rearranged in the JTable so that the
view's columns appear in a different order to the columns in the model.
This does not affect the implementation of the model at all: when the
columns are reordered, the JTable maintains the new order of the columns
internally and converts its column indices before querying the model.
So, when writing a TableModel, it is not necessary to listen for column
reordering events as the model will be queried in its own coordinate
system regardless of what is happening in the view.
In the examples area there is a demonstration of a sorting algorithm making
use of exactly this technique to interpose yet another coordinate system
where the order of the rows is changed, rather than the order of the columns.
The general rule for the JTable API and the APIs of all its associated classes,
including the column model and both the row and column selection models, is:
methods using integer indices for rows and columns always use the coordinate
system of the view. There are three exceptions to this rule:
TableModel
interface are in the coordinate system of the model.
modelIndex in the TableColumn constructors
refers to the index of the column in the model, not the view.
TableModelEvent, which describes changes
that have taken place in a table model, use the coordinate system
of the model.
TableColumn provides a slot for holding an identifier or "tag" for each column,
and the JTable and TableColumnModel both support getColumn(Object id)
conveniences for locating columns by their identifier. If no identifier is
explicitly set, the TableColumn returns its header value (the name of the column)
as a default. A different identifier, which can be of any type, can be set
using the TableColumn's setIdentifier method. All of the JTable's
functions operate correctly regardless of the type and uniqueness of these
identifiers.
The convertColumnIndexToView and
convertColumnIndexToModel methods have been provided to
convert between the two coordinate systems but
they are rarely needed during normal use.
As for all JComponent classes, you can use
InputMap and ActionMap to associate an
Action object with a KeyStroke and execute the
action under specified conditions.
For the keyboard keys used by this component in the standard Look and
Feel (L&F) renditions, see the
JTable key assignments.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. A future release of Swing will provide support for long term persistence.
| Inner Class Summary | |
protected class |
JTable.AccessibleJTable
This class implements accessibility support for the JTable class. |
| Inner classes inherited from class javax.swing.JComponent |
JComponent.AccessibleJComponent |
| Inner classes inherited from class java.awt.Container |
Container.AccessibleAWTContainer |
| Inner classes inherited from class java.awt.Component |
Component.AccessibleAWTComponent |
| Field Summary | |
static int |
AUTO_RESIZE_ALL_COLUMNS
During all resize operations, proportionately resize all columns. |
static int |
AUTO_RESIZE_LAST_COLUMN
During all resize operations, apply adjustments to the last column only. |
static int |
AUTO_RESIZE_NEXT_COLUMN
When a column is adjusted in the UI, adjust the next column the opposite way. |
static int |
AUTO_RESIZE_OFF
Do not adjust column widths automatically; use a scrollbar. |
static int |
AUTO_RESIZE_SUBSEQUENT_COLUMNS
During UI adjustment, change subsequent columns to preserve the total width; this is the default behavior. |
protected boolean |
autoCreateColumnsFromModel
The table will query the TableModel to build the default
set of columns if this is true. |
protected int |
autoResizeMode
Determines if the table automatically resizes the width of the table's columns to take up the entire width of the table, and how it does the resizing. |
protected TableCellEditor |
cellEditor
The object that overwrites the screen real estate occupied by the current cell and allows the user to change its contents. |
protected boolean |
cellSelectionEnabled
Obsolete as of Java 2 platform v1.3. |
protected TableColumnModel |
columnModel
The TableColumnModel of the table. |
protected TableModel |
dataModel
The TableModel of the table. |
protected Hashtable |
defaultEditorsByColumnClass
A table of objects that display and edit the contents of a cell, indexed by class as declared in getColumnClass
in the TableModel interface. |
protected Hashtable |
defaultRenderersByColumnClass
A table of objects that display the contents of a cell, indexed by class as declared in getColumnClass
in the TableModel interface. |
protected int |
editingColumn
Identifies the column of the cell being edited. |
protected int |
editingRow
Identifies the row of the cell being edited. |
protected Component |
editorComp
If editing, the Component that is handling the editing. |
protected Color |
gridColor
The color of the grid. |
protected Dimension |
preferredViewportSize
Used by the Scrollable interface to determine the initial visible area. |
protected int |
rowHeight
The height in pixels of each row in the table. |
protected int |
rowMargin
The height in pixels of the margin between the cells in each row. |
protected boolean |
rowSelectionAllowed
True if row selection is allowed in this table. |
protected Color |
selectionBackground
The background color of selected cells. |
protected Color |
selectionForeground
The foreground color of selected cells. |
protected ListSelectionModel |
selectionModel
The ListSelectionModel of the table, used to keep track of row selections. |
protected boolean |
showHorizontalLines
The table draws horizontal lines between cells if showHorizontalLines is true. |
protected boolean |
showVerticalLines
The table draws vertical lines between cells if showVerticalLines is true. |
protected JTableHeader |
tableHeader
The TableHeader working with the table. |
| Fields inherited from class javax.swing.JComponent |
accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW |
| Fields inherited from class java.awt.Component |
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
| Fields inherited from interface java.awt.image.ImageObserver |
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
| Constructor Summary | |
JTable()
Constructs a default JTable that is initialized with a default
data model, a default column model, and a default selection
model. |
|
JTable(int numRows,
int numColumns)
Constructs a JTable with numRows
and numColumns of empty cells using
DefaultTableModel. |
|
JTable(Object[][] rowData,
Object[] columnNames)
Constructs a JTable to display the values in the two dimensional array,
rowData, with column names, columnNames. |
|
JTable(TableModel dm)
Constructs a JTable that is initialized with
dm as the data model, a default column model,
and a default selection model. |
|
JTable(TableModel dm,
TableColumnModel cm)
Constructs a JTable that is initialized with
dm as the data model, cm
as the column model, and a default selection model. |
|
JTable(TableModel dm,
TableColumnModel cm,
ListSelectionModel sm)
Constructs a JTable that is initialized with
dm as the data model, cm as the
column model, and sm as the selection model. |
|
JTable(Vector rowData,
Vector columnNames)
Constructs a JTable to display the values in the
Vector of Vectors, rowData,
with column names, columnNames. |
|
| Method Summary | |
void |
addColumn(TableColumn aColumn)
Appends aColumn to the end of the array of columns held by
this JTable's column model. |
void |
addColumnSelectionInterval(int index0,
int index1)
Adds the columns from index0 to index1,
inclusive, to the current selection. |
void |
addNotify()
Calls the configureEnclosingScrollPane method. |
void |
addRowSelectionInterval(int index0,
int index1)
Adds the rows from index0 to index1, inclusive, to
the current selection. |
void |
changeSelection(int rowIndex,
int columnIndex,
boolean toggle,
boolean extend)
Updates the selection models of the table, depending on the state of the two flags: toggle and extend. |
void |
clearSelection()
Deselects all selected columns and rows. |
void |
columnAdded(TableColumnModelEvent e)
Invoked when a column is added to the table column model. |
int |
columnAtPoint(Point point)
Returns the index of the column that point lies in,
or -1 if the result is not in the range
[0, getColumnCount()-1]. |
void |
columnMarginChanged(ChangeEvent e)
Invoked when a column is moved due to a margin change. |
void |
columnMoved(TableColumnModelEvent e)
Invoked when a column is repositioned. |
void |
columnRemoved(TableColumnModelEvent e)
Invoked when a column is removed from the table column model. |
void |
columnSelectionChanged(ListSelectionEvent e)
Invoked when the selection model of the TableColumnModel
is changed. |
protected void |
configureEnclosingScrollPane()
If this JTable is the viewportView of an enclosing JScrollPane
(the usual situation), configure this ScrollPane by, amongst other things,
installing the table's tableHeader as the columnHeaderView of the scroll pane. |
int |
convertColumnIndexToModel(int viewColumnIndex)
Maps the index of the column in the view at viewColumnIndex to the index of the column
in the table model. |
int |
convertColumnIndexToView(int modelColumnIndex)
Maps the index of the column in the table model at modelColumnIndex to the index of the column
in the view. |
protected TableColumnModel |
createDefaultColumnModel()
Returns the default column model object, which is a DefaultTableColumnModel. |
void |
createDefaultColumnsFromModel()
Creates default columns for the table from the data model using the getColumnCount method
defined in the TableModel interface. |
protected TableModel |
createDefaultDataModel()
Returns the default table model object, which is a DefaultTableModel. |
protected void |
createDefaultEditors()
Creates default cell editors for objects, numbers, and boolean values. |
protected void |
createDefaultRenderers()
Creates default cell renderers for objects, numbers, doubles, dates, booleans, and icons. |
protected ListSelectionModel |
createDefaultSelectionModel()
Returns the default selection model object, which is a DefaultListSelectionModel. |
protected JTableHeader |
createDefaultTableHeader()
Returns the default table header object, which is a JTableHeader. |
static JScrollPane |
createScrollPaneForTable(JTable aTable)
Deprecated. As of Swing version 1.0.2, replaced by new JScrollPane(aTable). |
void |
doLayout()
Causes this table to lay out its rows and columns. |
boolean |
editCellAt(int row,
int column)
Programmatically starts editing the cell at row and
column, if the cell is editable. |
boolean |
editCellAt(int row,
int column,
EventObject e)
Programmatically starts editing the cell at row and
column, if the cell is editable. |
void |
editingCanceled(ChangeEvent e)
Invoked when editing is canceled. |
void |
editingStopped(ChangeEvent e)
Invoked when editing is finished. |
AccessibleContext |
getAccessibleContext()
Gets the AccessibleContext associated with this JTable. |
boolean |
getAutoCreateColumnsFromModel()
Determines whether the table will create default columns from the model. |
int |
getAutoResizeMode()
Returns the auto resize mode of the table. |
TableCellEditor |
getCellEditor()
Returns the cell editor. |
TableCellEditor |
getCellEditor(int row,
int column)
Returns an appropriate editor for the cell specified by row and column. |
Rectangle |
getCellRect(int row,
int column,
boolean includeSpacing)
Returns a rectangle for the cell that lies at the intersection of row and column. |
TableCellRenderer |
getCellRenderer(int row,
int column)
Returns an appropriate renderer for the cell specified by this row and column. |
boolean |
getCellSelectionEnabled()
Returns true if both row and column selection models are enabled. |
TableColumn |
getColumn(Object identifier)
Returns the TableColumn object for the column in the table
whose identifier is equal to identifier, when compared using
equals. |
Class |
getColumnClass(int column)
Returns the type of the column appearing in the view at column position column. |
int |
getColumnCount()
Returns the number of columns in the column model. |
TableColumnModel |
getColumnModel()
Returns the TableColumnModel that contains all column information
of this table. |
String |
getColumnName(int column)
Returns the name of the column appearing in the view at column position column. |
boolean |
getColumnSelectionAllowed()
Returns true if columns can be selected. |
TableCellEditor |
getDefaultEditor(Class columnClass)
Returns the editor to be used when no editor has been set in a TableColumn. |
TableCellRenderer |
getDefaultRenderer(Class columnClass)
Returns the cell renderer to be used when no renderer has been set in a TableColumn. |
int |
getEditingColumn()
Returns the index of the column that contains the cell currently being edited. |
int |
getEditingRow()
Returns the index of the row that contains the cell currently being edited. |
Component |
getEditorComponent()
Returns the component that is handling the editing session. |
Color |
getGridColor()
Returns the color used to draw grid lines. |
Dimension |
getIntercellSpacing()
Returns the horizontal and vertical space between cells. |
TableModel |
getModel()
Returns the TableModel that provides the data displayed by this
JTable. |
Dimension |
getPreferredScrollableViewportSize()
Returns the preferred size of the viewport for this table. |
int |
getRowCount()
Returns the number of rows in this table's model. |
int |
getRowHeight()
Returns the height of a table row, in pixels. |
int |
getRowHeight(int row)
Returns the height, in pixels, of the cells in row. |
int |
getRowMargin()
Gets the amount of empty space, in pixels, between cells. |
boolean |
getRowSelectionAllowed()
Returns true if rows can be selected. |
int |
getScrollableBlockIncrement(Rectangle visibleRect,
int orientation,
int direction)
Returns visibleRect.height or
visibleRect.width,
depending on this table's orientation. |
boolean |
getScrollableTracksViewportHeight()
Returns false to indicate that the height of the viewport does not determine the height of the table. |
boolean |
getScrollableTracksViewportWidth()
Returns false to indicate that the width of the viewport does not determine the width of the table. |
int |
getScrollableUnitIncrement(Rectangle visibleRect,
int orientation,
int direction)
Returns the scroll increment (in pixels) that completely exposes one new row or column (depending on the orientation). |
int |
getSelectedColumn()
Returns the index of the first selected column, -1 if no column is selected. |
int |
getSelectedColumnCount()
Returns the number of selected columns. |
int[] |
getSelectedColumns()
Returns the indices of all selected columns. |
int |
getSelectedRow()
Returns the index of the first selected row, -1 if no row is selected. |
int |
getSelectedRowCount()
Returns the number of selected rows. |
int[] |
getSelectedRows()
Returns the indices of all selected rows. |
Color |
getSelectionBackground()
Returns the background color for selected cells. |
Color |
getSelectionForeground()
Returns the foreground color for selected cells. |
ListSelectionModel |
getSelectionModel()
Returns the ListSelectionModel that is used to maintain row
selection state. |
boolean |
getShowHorizontalLines()
Returns true if the table draws horizontal lines between cells, false if it doesn't. |
boolean |
getShowVerticalLines()
Returns true if the table draws vertical lines between cells, false if it doesn't. |
JTableHeader |
getTableHeader()
Returns the tableHeader used by this JTable. |
String |
getToolTipText(MouseEvent event)
Overrides JComponent's getToolTipText
method in order to allow the renderer's tips to be used
if it has text set. |
TableUI |
getUI()
Returns the L&F object that renders this component. |
String |
getUIClassID()
Returns the suffix used to construct the name of the L&F class used to render this component. |
Object |
getValueAt(int row,
int column)
Returns the cell value at row and column. |
protected void |
initializeLocalVars()
Initializes table properties to their default values. |
boolean |
isCellEditable(int row,
int column)
Returns true if the cell at row and column
is editable. |
boolean |
isCellSelected(int row,
int column)
Returns true if the cell at the specified position is selected. |
boolean |
isColumnSelected(int column)
Returns true if the column at the specified index is selected. |
boolean |
isEditing()
Returns true if a cell is being edited. |
boolean |
isFocusTraversable()
We override this method, whose implementation in JComponent
returns false, to return true. |
boolean |
isManagingFocus()
We override this method, whose implementation in JComponent
returns false, to return true. |
boolean |
isRowSelected(int row)
Returns true if the row at the specified index is selected. |
void |
moveColumn(int column,
int targetColumn)
Moves the column column to the position currently
occupied by the column targetColumn in the view. |
protected String |
paramString()
Returns a string representation of this table. |
Component |
prepareEditor(TableCellEditor editor,
int row,
int column)
Prepares the editor by querying the data model for the value and selection state of the cell at row, column. |
Component |
prepareRenderer(TableCellRenderer renderer,
int row,
int column)
Prepares the renderer by querying the data model for the value and selection state of the cell at row, column. |
protected boolean |
processKeyBinding(KeyStroke ks,
KeyEvent e,
int condition,
boolean pressed)
Invoked to process the key bindings for ks as the result
of the KeyEvent e. |
void |
removeColumn(TableColumn aColumn)
Removes aColumn from this JTable's
array of columns. |
void |
removeColumnSelectionInterval(int index0,
int index1)
Deselects the columns from index0 to index1, inclusive. |
void |
removeEditor()
Discards the editor object and frees the real estate it used for cell rendering. |
void |
removeNotify()
Calls the unconfigureEnclosingScrollPane method. |
void |
removeRowSelectionInterval(int index0,
int index1)
Deselects the rows from index0 to index1, inclusive. |
protected void |
resizeAndRepaint()
Equivalent to revalidate followed by repaint. |
int |
rowAtPoint(Point point)
Returns the index of the row that point lies in,
or -1 if the result is not in the range
[0, getRowCount()-1]. |
void |
selectAll()
Selects all rows, columns, and cells in the table. |
void |
setAutoCreateColumnsFromModel(boolean autoCreateColumnsFromModel)
Sets this table's autoCreateColumnsFromModel flag. |
void |
setAutoResizeMode(int mode)
Sets the table's auto resize mode when the table is resized. |
void |
setCellEditor(TableCellEditor anEditor)
Sets the cellEditor variable. |
void |
setCellSelectionEnabled(boolean cellSelectionEnabled)
Sets whether this table allows both a column selection and a row selection to exist simultaneously. |
void |
setColumnModel(TableColumnModel columnModel)
Sets the column model for this table to newModel and registers
for listener notifications from the new column model. |
void |
setColumnSelectionAllowed(boolean columnSelectionAllowed)
Sets whether the columns in this model can be selected. |
void |
setColumnSelectionInterval(int index0,
int index1)
Selects the columns from index0 to index1,
inclusive. |
void |
setDefaultEditor(Class columnClass,
TableCellEditor editor)
Sets a default cell editor to be used if no editor has been set in a TableColumn. |
void |
setDefaultRenderer(Class columnClass,
TableCellRenderer renderer)
Sets a default cell renderer to be used if no renderer has been set in a TableColumn. |
void |
setEditingColumn(int aColumn)
Sets the editingColumn variable. |
void |
setEditingRow(int aRow)
Sets the editingRow variable. |
void |
setGridColor(Color gridColor)
Sets the color used to draw grid lines to gridColor and redisplays. |
void |
setIntercellSpacing(Dimension intercellSpacing)
Sets the rowMargin and the columnMargin --
the height and width of the space between cells -- to
intercellSpacing. |
void |
setModel(TableModel dataModel)
Sets the data model for this table to newModel and registers
with it for listener notifications from the new data model. |
void |
setPreferredScrollableViewportSize(Dimension size)
Sets the preferred size of the viewport for this table. |
void |
setRowHeight(int rowHeight)
Sets the height, in pixels, of all cells to rowHeight,
revalidates, and repaints. |
void |
setRowHeight(int row,
int rowHeight)
Sets the height for row to rowHeight,
revalidates, and repaints. |
void |
setRowMargin(int rowMargin)
Sets the amount of empty space between cells in adjacent rows. |
void |
setRowSelectionAllowed(boolean rowSelectionAllowed)
Sets whether the rows in this model can be selected. |
void |
setRowSelectionInterval(int index0,
int index1)
Selects the rows from index0 to index1,
inclusive. |
void |
setSelectionBackground(Color selectionBackground)
Sets the background color for selected cells. |
void |
setSelectionForeground(Color selectionForeground)
Sets the foreground color for selected cells. |
void |
setSelectionMode(int selectionMode)
Sets the table's selection mode to allow only single selections, a single contiguous interval, or multiple intervals. |
void |
setSelectionModel(ListSelectionModel newModel)
Sets the row selection model for this table to newModel
and registers for listener notifications from the new selection model. |
void |
setShowGrid(boolean showGrid)
Sets whether the table draws grid lines around cells. |
void |
setShowHorizontalLines(boolean showHorizontalLines)
Sets whether the table draws horizontal lines between cells. |
void |
setShowVerticalLines(boolean showVerticalLines)
Sets whether the table draws vertical lines between cells. |
void |
setTableHeader(JTableHeader tableHeader)
Sets the tableHeader working with this JTable to newHeader. |
void |
setUI(TableUI ui)
Sets the L&F object that renders this component and repaints. |
void |
setValueAt(Object aValue,
int row,
int column)
Sets the value for the cell in the table model at row
and column. |
void |
sizeColumnsToFit(boolean lastColumnOnly)
Deprecated. As of Swing version 1.0.3, replaced by sizeColumnsToFit(int). |
void |
sizeColumnsToFit(int resizingColumn)
Resizes one or more of the columns in the table so that the total width of all of this JTable's
columns is equal to the width of the table. |
void |
tableChanged(TableModelEvent e)
Invoked when this table's TableModel generates
a TableModelEvent. |
protected void |
unconfigureEnclosingScrollPane()
Reverses the effect of configureEnclosingScrollPane
by replacing the columnHeaderView of the enclosing scroll pane with
null. |
void |
updateUI()
Notification from the UIManager that the L&F has changed. |
void |
valueChanged(ListSelectionEvent e)
Invoked when the row selection changes -- repaints to show the new selection. |
| Methods inherited from class java.awt.Container |
add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setLayout, validate, validateTree |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
public static final int AUTO_RESIZE_OFF
public static final int AUTO_RESIZE_NEXT_COLUMN
public static final int AUTO_RESIZE_SUBSEQUENT_COLUMNS
public static final int AUTO_RESIZE_LAST_COLUMN
public static final int AUTO_RESIZE_ALL_COLUMNS
protected TableModel dataModel
TableModel of the table.protected TableColumnModel columnModel
TableColumnModel of the table.protected ListSelectionModel selectionModel
ListSelectionModel of the table, used to keep track of row selections.protected JTableHeader tableHeader
TableHeader working with the table.protected int rowHeight
protected int rowMargin
protected Color gridColor
protected boolean showHorizontalLines
showHorizontalLines is true.protected boolean showVerticalLines
showVerticalLines is true.protected int autoResizeMode
protected boolean autoCreateColumnsFromModel
TableModel to build the default
set of columns if this is true.protected Dimension preferredViewportSize
Scrollable interface to determine the initial visible area.protected boolean rowSelectionAllowed
protected boolean cellSelectionEnabled
rowSelectionAllowed property and the
columnSelectionAllowed property of the
columnModel instead. Or use the
method getCellSelectionEnabled.protected transient Component editorComp
Component that is handling the editing.protected transient TableCellEditor cellEditor
protected transient int editingColumn
protected transient int editingRow
protected transient Hashtable defaultRenderersByColumnClass
getColumnClass
in the TableModel interface.protected transient Hashtable defaultEditorsByColumnClass
getColumnClass
in the TableModel interface.protected Color selectionForeground
protected Color selectionBackground
| Constructor Detail |
public JTable()
JTable that is initialized with a default
data model, a default column model, and a default selection
model.createDefaultDataModel(),
createDefaultColumnModel(),
createDefaultSelectionModel()public JTable(TableModel dm)
JTable that is initialized with
dm as the data model, a default column model,
and a default selection model.dm - the data model for the tablecreateDefaultColumnModel(),
createDefaultSelectionModel()
public JTable(TableModel dm,
TableColumnModel cm)
JTable that is initialized with
dm as the data model, cm
as the column model, and a default selection model.dm - the data model for the tablecm - the column model for the tablecreateDefaultSelectionModel()
public JTable(TableModel dm,
TableColumnModel cm,
ListSelectionModel sm)
JTable that is initialized with
dm as the data model, cm as the
column model, and sm as the selection model.
If any of the parameters are null this method
will initialize the table with the corresponding default model.
The autoCreateColumnsFromModel flag is set to false
if cm is non-null, otherwise it is set to true
and the column model is populated with suitable
TableColumns for the columns in dm.dm - the data model for the tablecm - the column model for the tablesm - the row selection model for the tablecreateDefaultDataModel(),
createDefaultColumnModel(),
createDefaultSelectionModel()
public JTable(int numRows,
int numColumns)
JTable with numRows
and numColumns of empty cells using
DefaultTableModel. The columns will have
names of the form "A", "B", "C", etc.numRows - the number of rows the table holdsnumColumns - the number of columns the table holdsDefaultTableModel
public JTable(Vector rowData,
Vector columnNames)
JTable to display the values in the
Vector of Vectors, rowData,
with column names, columnNames. The
Vectors contained in rowData
should contain the values for that row. In other words,
the value of the cell at row 1, column 5 can be obtained
with the following code:
((Vector)rowData.elementAt(1)).elementAt(5);
Each row must contain a value for each column or an exception will be raised.
rowData - the data for the new tablecolumnNames - names of each column
public JTable(Object[][] rowData,
Object[] columnNames)
JTable to display the values in the two dimensional array,
rowData, with column names, columnNames.
rowData is an array of rows, so the value of the cell at row 1,
column 5 can be obtained with the following code:
rowData[1][5];
All rows must be of the same length as columnNames.
rowData - the data for the new tablecolumnNames - names of each column| Method Detail |
public void addNotify()
configureEnclosingScrollPane method.addNotify in class JComponentconfigureEnclosingScrollPane()protected void configureEnclosingScrollPane()
JTable is the viewportView of an enclosing JScrollPane
(the usual situation), configure this ScrollPane by, amongst other things,
installing the table's tableHeader as the columnHeaderView of the scroll pane.
When a JTable is added to a JScrollPane in the usual way,
using new JScrollPane(myTable), addNotify is
called in the JTable (when the table is added to the viewport).
JTable's addNotify method in turn calls this method,
which is protected so that this default installation procedure can
be overridden by a subclass.addNotify()public void removeNotify()
unconfigureEnclosingScrollPane method.removeNotify in class JComponentunconfigureEnclosingScrollPane()protected void unconfigureEnclosingScrollPane()
configureEnclosingScrollPane
by replacing the columnHeaderView of the enclosing scroll pane with
null. JTable's removeNotify method calls
this method, which is protected so that this default uninstallation
procedure can be overridden by a subclass.removeNotify(),
configureEnclosingScrollPane()public static JScrollPane createScrollPaneForTable(JTable aTable)
new JScrollPane(aTable).
new JScrollPane(aTable).public void setTableHeader(JTableHeader tableHeader)
tableHeader working with this JTable to newHeader.
It is legal to have a null tableHeader.newHeader - new tableHeadergetTableHeader()public JTableHeader getTableHeader()
tableHeader used by this JTable.tableHeader used by this tablesetTableHeader(javax.swing.table.JTableHeader)public void setRowHeight(int rowHeight)
rowHeight,
revalidates, and repaints.
The height of the cells in this row will be equal to the row height minus
the row margin.rowHeight - new row heightIllegalArgumentException - if rowHeight is
less than 1getRowHeight()public int getRowHeight()
setRowHeight(int)
public void setRowHeight(int row,
int rowHeight)
row to rowHeight,
revalidates, and repaints. The height of the cells in this row
will be equal to the row height minus the row margin.row - the row whose height is being
changedrowHeight - new row height, in pixelsIllegalArgumentException - if rowHeight is
less than 1public int getRowHeight(int row)
row.row - the row whose height is to be returnedpublic void setRowMargin(int rowMargin)
rowMargin - the number of pixels between cells in a rowgetRowMargin()public int getRowMargin()
getIntercellSpacing().height.setRowMargin(int)public void setIntercellSpacing(Dimension intercellSpacing)
rowMargin and the columnMargin --
the height and width of the space between cells -- to
intercellSpacing.intercellSpacing - a Dimension
specifying the new width
and height between cellsgetIntercellSpacing()public Dimension getIntercellSpacing()
setIntercellSpacing(java.awt.Dimension)public void setGridColor(Color gridColor)
gridColor and redisplays.
The default color is Color.gray.gridColor - the new color of the grid linesIllegalArgumentException - if gridColor is nullgetGridColor()public Color getGridColor()
Color.gray.setGridColor(java.awt.Color)public void setShowGrid(boolean showGrid)
showGrid is true it does; if it is false it doesn't.
There is no getShowGrid method as this state is held
in two variables -- showHorizontalLines and showVerticalLines --
each of which can be queried independently.showGrid - true if table view should draw grid linessetShowVerticalLines(boolean),
setShowHorizontalLines(boolean)public void setShowHorizontalLines(boolean showHorizontalLines)
showHorizontalLines is true it does; if it is false it doesn't.showHorizontalLines - true if table view should draw horizontal linesgetShowHorizontalLines(),
setShowGrid(boolean),
setShowVerticalLines(boolean)public void setShowVerticalLines(boolean showVerticalLines)
showVerticalLines is true it does; if it is false it doesn't.showVerticalLines - true if table view should draw vertical linesgetShowVerticalLines(),
setShowGrid(boolean),
setShowHorizontalLines(boolean)public boolean getShowHorizontalLines()
setShowHorizontalLines(boolean)public boolean getShowVerticalLines()
setShowVerticalLines(boolean)public void setAutoResizeMode(int mode)
mode - One of 5 legal values:
AUTO_RESIZE_OFF,
AUTO_RESIZE_NEXT_COLUMN,
AUTO_RESIZE_SUBSEQUENT_COLUMNS,
AUTO_RESIZE_LAST_COLUMN,
AUTO_RESIZE_ALL_COLUMNSgetAutoResizeMode(),
sizeColumnsToFit(int)public int getAutoResizeMode()
setAutoResizeMode(int),
sizeColumnsToFit(int)public void setAutoCreateColumnsFromModel(boolean autoCreateColumnsFromModel)
autoCreateColumnsFromModel flag.
This method calls createDefaultColumnsFromModel if
autoCreateColumnsFromModel changes from false to true.autoCreateColumnsFromModel - true if JTable should automatically create columnsgetAutoCreateColumnsFromModel(),
createDefaultColumnsFromModel()public boolean getAutoCreateColumnsFromModel()
setModel will clear any existing columns and
create new columns from the new model. Also, if the event in
the tableChanged notification specifies that the
entire table changed, then the columns will be rebuilt.
The default is true.setAutoCreateColumnsFromModel(boolean),
createDefaultColumnsFromModel()public void createDefaultColumnsFromModel()
getColumnCount method
defined in the TableModel interface.
Clears any existing columns before creating the new columns based on information from the model.
getAutoCreateColumnsFromModel()
public void setDefaultRenderer(Class columnClass,
TableCellRenderer renderer)
TableColumn. If renderer is null,
removes the default renderer for this column class.columnClass - set the default cell renderer for this columnClassrenderer - default cell renderer to be used for this
columnClassgetDefaultRenderer(java.lang.Class),
setDefaultEditor(java.lang.Class, javax.swing.table.TableCellEditor)public TableCellRenderer getDefaultRenderer(Class columnClass)
TableColumn. During the rendering of cells the renderer is fetched from
a Hashtable of entries according to the class of the cells in the column. If
there is no entry for this columnClass the method returns
the entry for the most specific superclass. The JTable installs entries
for Object, Number, and Boolean, all of which can be modified
or replaced.columnClass - return the default cell renderer
for this columnClasssetDefaultRenderer(java.lang.Class, javax.swing.table.TableCellRenderer),
getColumnClass(int)
public void setDefaultEditor(Class columnClass,
TableCellEditor editor)
TableColumn. If no editing is required in a table, or a
particular column in a table, uses the isCellEditable
method in the TableModel interface to ensure that this
JTable will not start an editor in these columns.
If editor is null, removes the default editor for this
column class.columnClass - set the default cell editor for this columnClasseditor - default cell editor to be used for this columnClassTableModel.isCellEditable(int, int),
getDefaultEditor(java.lang.Class),
setDefaultRenderer(java.lang.Class, javax.swing.table.TableCellRenderer)public TableCellEditor getDefaultEditor(Class columnClass)
TableColumn. During the editing of cells the editor is fetched from
a Hashtable of entries according to the class of the cells in the column. If
there is no entry for this columnClass the method returns
the entry for the most specific superclass. The JTable installs entries
for Object, Number, and Boolean, all of which can be modified
or replaced.columnClass - return the default cell editor for this columnClasssetDefaultEditor(java.lang.Class, javax.swing.table.TableCellEditor),
getColumnClass(int)public void setSelectionMode(int selectionMode)
JTable provides all the methods for handling
column and row selection. When setting states,
such as setSelectionMode, it not only
updates the mode for the row selection model but also sets similar
values in the selection model of the columnModel.
If you want to have the row and column selection models operating
in different modes, set them both directly.
Both the row and column selection models for JTable
default to using a DefaultListSelectionModel
so that JTable works the same way as the
JList. See the setSelectionMode method
in JList for details about the modes.
JList.setSelectionMode(int)public void setRowSelectionAllowed(boolean rowSelectionAllowed)
rowSelectionAllowed - true if this model will allow row selectiongetRowSelectionAllowed()public boolean getRowSelectionAllowed()
setRowSelectionAllowed(boolean)public void setColumnSelectionAllowed(boolean columnSelectionAllowed)
columnSelectionAllowed - true if this model will allow column selectiongetColumnSelectionAllowed()public boolean getColumnSelectionAllowed()
setColumnSelectionAllowed(boolean)public void setCellSelectionEnabled(boolean cellSelectionEnabled)
isCellSelected to
change this default behavior. This method is equivalent to setting
both the rowSelectionAllowed property and
columnSelectionAllowed property of the
columnModel to the supplied value.cellSelectionEnabled - true if simultaneous row and column
selection is allowedgetCellSelectionEnabled(),
isCellSelected(int, int)public boolean getCellSelectionEnabled()
getRowSelectionAllowed() &&
getColumnSelectionAllowed().setCellSelectionEnabled(boolean)public void selectAll()
public void clearSelection()
public void setRowSelectionInterval(int index0,
int index1)
index0 to index1,
inclusive.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or
index1 lie outside
[0, getRowCount()-1]
public void setColumnSelectionInterval(int index0,
int index1)
index0 to index1,
inclusive.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or
index1 lie outside
[0, getColumnCount()-1]
public void addRowSelectionInterval(int index0,
int index1)
index0 to index1, inclusive, to
the current selection.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or index1
lie outside [0, getRowCount()-1]
public void addColumnSelectionInterval(int index0,
int index1)
index0 to index1,
inclusive, to the current selection.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or
index1 lie outside
[0, getColumnCount()-1]
public void removeRowSelectionInterval(int index0,
int index1)
index0 to index1, inclusive.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or
index1 lie outside
[0, getRowCount()-1]
public void removeColumnSelectionInterval(int index0,
int index1)
index0 to index1, inclusive.index0 - one end of the intervalindex1 - the other end of the intervalIllegalArgumentException - if index0 or
index1 lie outside
[0, getColumnCount()-1]public int getSelectedRow()
public int getSelectedColumn()
public int[] getSelectedRows()
getSelectedRow()public int[] getSelectedColumns()
getSelectedColumn()public int getSelectedRowCount()
public int getSelectedColumnCount()
public boolean isRowSelected(int row)
row is selected, where 0 is the
first rowIllegalArgumentException - if row is not in the
valid rangepublic boolean isColumnSelected(int column)
column - the column in the column modelcolumn is selected, where
0 is the first columnIllegalArgumentException - if column is not in the
valid range
public boolean isCellSelected(int row,
int column)
row - the row being queriedcolumn - the column being queried(row, column) is selected,
where the first row and first column are at index 0IllegalArgumentException - if row or column
are not in the valid range
public void changeSelection(int rowIndex,
int columnIndex,
boolean toggle,
boolean extend)
toggle and extend. All changes
to the selection that are the result of keyboard or mouse events received
by the UI are channeled through this method so that the behavior may be
overridden by a subclass.
This implementation uses the following conventions:
toggle: false, extend: false.
Clear the previous selection and ensure the new cell is selected.
toggle: false, extend: true.
Extend the previous selection to include the specified cell.
toggle: true, extend: false.
If the specified cell is selected, deselect it. If it is not selected, select it.
toggle: true, extend: true.
Leave the selection state as it is, but move the anchor index to the specified location.
rowIndex - affects the selection at rowcolumnIndex - affects the selection at columntoggle - see description aboveextend - if true, extend the current selectionpublic Color getSelectionForeground()
Color object for the foreground propertysetSelectionForeground(java.awt.Color),
setSelectionBackground(java.awt.Color)public void setSelectionForeground(Color selectionForeground)
The default value of this property is defined by the look and feel implementation.
This is a JavaBeans bound property.
selectionForeground - the Color to use in the foreground
for selected list itemsgetSelectionForeground(),
setSelectionBackground(java.awt.Color),
JComponent.setForeground(java.awt.Color),
JComponent.setBackground(java.awt.Color),
JComponent.setFont(java.awt.Font)public Color getSelectionBackground()
Color used for the background of selected list itemssetSelectionBackground(java.awt.Color),
setSelectionForeground(java.awt.Color)public void setSelectionBackground(Color selectionBackground)
The default value of this property is defined by the look and feel implementation.
This is a JavaBeans bound property.
selectionBackground - the Color to use for the background
of selected cellsgetSelectionBackground(),
setSelectionForeground(java.awt.Color),
JComponent.setForeground(java.awt.Color),
JComponent.setBackground(java.awt.Color),
JComponent.setFont(java.awt.Font)public TableColumn getColumn(Object identifier)
TableColumn object for the column in the table
whose identifier is equal to identifier, when compared using
equals.identifier - the identifier objectTableColumn object that matches the identifierIllegalArgumentException - if identifier is null or no TableColumn has this identifierpublic int convertColumnIndexToModel(int viewColumnIndex)
viewColumnIndex to the index of the column
in the table model. Returns the index of the corresponding
column in the model. If viewColumnIndex
is less than zero, returns viewColumnIndex.viewColumnIndex - the index of the column in the viewconvertColumnIndexToView(int)public int convertColumnIndexToView(int modelColumnIndex)
modelColumnIndex to the index of the column
in the view. Returns the index of the
corresponding column in the view; returns -1 if this column is not
being displayed. If modelColumnIndex is less than zero,
returns modelColumnIndex.modelColumnIndex - the index of the column in the modelconvertColumnIndexToModel(int)public int getRowCount()
getColumnCount()public int getColumnCount()
getRowCount(),
removeColumn(javax.swing.table.TableColumn)public String getColumnName(int column)
column.column - the column in the view being queriedcolumn
in the view where the first column is column 0public Class getColumnClass(int column)
column.column - the column in the view being queriedcolumn
in the view where the first column is column 0
public Object getValueAt(int row,
int column)
row and column.
Note: The column is specified in the table view's display
order, and not in the TableModel's column
order. This is an important distinction because as the
user rearranges the columns in the table,
the column at a given index in the view will change.
Meanwhile the user's actions never affect the model's
column ordering.
row - the row whose value is to be queriedcolumn - the column whose value is to be queried
public void setValueAt(Object aValue,
int row,
int column)
row
and column.
Note: The column is specified in the table view's display
order, and not in the TableModel's column
order. This is an important distinction because as the
user rearranges the columns in the table,
the column at a given index in the view will change.
Meanwhile the user's actions never affect the model's
column ordering.
aValue is the new value.
aValue - the new valuerow - the row of the cell to be changedcolumn - the column of the cell to be changedgetValueAt(int, int)
public boolean isCellEditable(int row,
int column)
row and column
is editable. Otherwise, invoking setValueAt on the cell
will have no effect.
Note: The column is specified in the table view's display
order, and not in the TableModel's column
order. This is an important distinction because as the
user rearranges the columns in the table,
the column at a given index in the view will change.
Meanwhile the user's actions never affect the model's
column ordering.
row - the row whose value is to be queriedcolumn - the column whose value is to be queriedsetValueAt(java.lang.Object, int, int)public void addColumn(TableColumn aColumn)
aColumn to the end of the array of columns held by
this JTable's column model.
If the column name of aColumn is null,
sets the column name of aColumn to the name
returned by getModel().getColumnName().
To add a column to this JTable to display the
modelColumn'th column of data in the model with a
given width, cellRenderer,
and cellEditor you can use:
addColumn(new TableColumn(modelColumn, width, cellRenderer, cellEditor));
[Any of the TableColumn constructors can be used
instead of this one.]
The model column number is stored inside the TableColumn
and is used during rendering and editing to locate the appropriates
data values in the model. The model column number does not change
when columns are reordered in the view.aColumn - the TableColumn to be addedremoveColumn(javax.swing.table.TableColumn)public void removeColumn(TableColumn aColumn)
aColumn from this JTable's
array of columns. Note: this method does not remove the column
of data from the model; it just removes the TableColumn
that was responsible for displaying it.aColumn - the TableColumn to be removedaddColumn(javax.swing.table.TableColumn)
public void moveColumn(int column,
int targetColumn)
column to the position currently
occupied by the column targetColumn in the view.
The old column at targetColumn is
shifted left or right to make room.column - the index of column to be movedtargetColumn - the new index of the columnpublic int columnAtPoint(Point point)
point lies in,
or -1 if the result is not in the range
[0, getColumnCount()-1].point - the location of interestpoint lies in,
or -1 if the result is not in the range
[0, getColumnCount()-1]rowAtPoint(java.awt.Point)public int rowAtPoint(Point point)
point lies in,
or -1 if the result is not in the range
[0, getRowCount()-1].point - the location of interestpoint lies in,
or -1 if the result is not in the range
[0, getRowCount()-1]columnAtPoint(java.awt.Point)
public Rectangle getCellRect(int row,
int column,
boolean includeSpacing)
row and column.
If includeSpacing is true then the value returned
has the full height and width of the row and column
specified. If it is false, the returned rectangle is inset by the
intercell spacing to return the true bounds of the rendering or
editing component as it will be set during rendering.
If the column index is valid but the row index is less
than zero the method returns a rectangle with the the
y and height values set appropriately
and the x and width values both set
to zero. In general, when either the row or column indices indicate a
cell outside the appropriate range, the method returns a rectangle
depicting the closest edge of the closest cell that is within
the table's range. When both row and column indices are out
of range the returned rectangle covers the closest
point of the closest cell.
In all cases, calulations that use this method to calculate results along one axix will not fail because of anomalies in calculations along other axis. When the cell is not valid the includeSpacing parameter is ignored.
includeSpacing - if false, return the true cell bounds -
computed by subtracting the intercell
spacing from the height and widths of
the column and row models.row,columnpublic void doLayout()
doLayout in class Containerjava.awt.ContainerLayoutManager.layoutContainer(java.awt.Container),
Container.setLayout(java.awt.LayoutManager),
Container.validate()public void sizeColumnsToFit(boolean lastColumnOnly)
sizeColumnsToFit(int).
sizeColumnsToFit(int)public void sizeColumnsToFit(int resizingColumn)
JTable's
columns is equal to the width of the table.
When doLayout is called on this JTable,
often as a result of the resizing of an enclosing window,
this method is called with resizingColumn
set to -1. This means that resizing has taken place "outside"
the JTable and the change - or "delta" - should
be distributed to all of the columns regardless of this
JTable's automatic resize mode.
If the resizingColumn is not -1, it is one of
the columns in the table that has changed size rather than
the table itself. In this case the auto-resize modes govern
the way the extra (or deficit) space is distributed
amongst the available columns.
The modes are:
Viewport. If the JTable is not
enclosed in a JScrollPane this may
leave parts of the table invisible.
JTable, including the one that is being
adjusted.
JTable makes adjustments
to the widths of the columns it respects their minimum and
maximum values absolutely. It is therefore possible that,
even after this method is called, the total width of the columns
is still not equal to the width of the table. When this happens
the JTable does not put itself
in AUTO_RESIZE_OFF mode to bring up a scroll bar, or break other
commitments of its current auto-resize mode -- instead it
allows its bounds to be set larger (or smaller) than the total of the
column minimum or maximum, meaning, either that there
will not be enough room to display all of the columns, or that the
columns will not fill the JTable's bounds.
These respectively, result in the clipping of some columns
or an area being painted in the JTable's
background color during painting.
The mechanism for distributing the delta amongst the available
columns is provided in a private method in the JTable
class:
adjustSizes(long targetSize, final Resizable3 r, boolean inverse)an explanation of which is provided in the following section.
Resizable3 is a private
interface that allows any data structure containing a collection
of elements with a size, preferred size, maximum size and minimum size
to have its elements manipulated by the algorithm.
Call "DELTA" the difference between the target size and the sum of the preferred sizes of the elements in r. The individual sizes are calculated by taking the original preferred sizes and adding a share of the DELTA - that share being based on how far each preferred size is from its limiting bound (minimum or maximum).
Call the individual constraints min[i], max[i], and pref[i].
Call their respective sums: MIN, MAX, and PREF.
Each new size will be calculated using:
size[i] = pref[i] + delta[i]
where each individual delta[i] is calculated according to:
If (DELTA < 0) we are in shrink mode where:
DELTA
delta[i] = ------------ * (pref[i] - min[i])
(PREF - MIN)
If (DELTA > 0) we are in expand mode where:
DELTA
delta[i] = ------------ * (max[i] - pref[i])
(MAX - PREF)
The overall effect is that the total size moves that same percentage, k, towards the total minimum or maximum and that percentage guarantees accomodation of the required space, DELTA.
Naive evaluation of the formulae presented here would be subject to
the aggregated rounding errors caused by doing this operation in finite
precision (using ints). To deal with this, the multiplying factor above,
is constantly recalculated and this takes account of the rounding
errors in the previous iterations. The result is an algorithm that
produces a set of integers whose values exactly sum to the supplied
targetSize, and does so by spreading the rounding
errors evenly over the given elements.
When targetSize is outside the [MIN, MAX] range,
the algorithm sets all sizes to their appropriate limiting value
(maximum or minimum).
resizingColumn - the column whose resizing made this adjustment
necessary or -1 if there is no such columnTableColumn.setWidth(int)public String getToolTipText(MouseEvent event)
JComponent's getToolTipText
method in order to allow the renderer's tips to be used
if it has text set.
JTable to properly display
tooltips of its renderers
JTable must be a registered component with the
ToolTipManager.
This is done automatically in initializeLocalVars,
but if at a later point JTable is told
setToolTipText(null) it will unregister the table
component, and no tips from renderers will display anymore.
getToolTipText in class JComponentJComponent.getToolTipText()
public boolean editCellAt(int row,
int column)
row and
column, if the cell is editable.row - the row to be editedcolumn - the column to be editedIllegalArgumentException - If row or column
is not in the valid range
public boolean editCellAt(int row,
int column,
EventObject e)
row and
column, if the cell is editable.
To prevent the JTable from editing a particular table, column or
cell value, return false from the isCellEditable method in the
TableModel interface.row - the row to be editedcolumn - the column to be editede - event to pass into
shouldSelectCellIllegalArgumentException - If row or column
is not in the valid rangepublic boolean isEditing()
editingColumn,
editingRowpublic Component getEditorComponent()
public int getEditingColumn()
editingRowpublic int getEditingRow()
editingColumnpublic TableUI getUI()
TableUI object that renders this componentpublic void setUI(TableUI ui)
ui - the TableUI L&F objectUIDefaults.getUI(javax.swing.JComponent)public void updateUI()
UIManager that the L&F has changed.
Replaces the current UI object with the latest version from the
UIManager.updateUI in class JComponentJComponent.updateUI()public String getUIClassID()
getUIClassID in class JComponentJComponent.getUIClassID(),
UIDefaults.getUI(javax.swing.JComponent)public void setModel(TableModel dataModel)
newModel and registers
with it for listener notifications from the new data model.newModel - the new data source for this tableIllegalArgumentException - if newModel is nullgetModel()public TableModel getModel()
TableModel that provides the data displayed by this
JTable.TableModel that provides the data displayed by this JTablesetModel(javax.swing.table.TableModel)public void setColumnModel(TableColumnModel columnModel)
newModel and registers
for listener notifications from the new column model. Also sets
the column model of the JTableHeader to columnModel.columnModel - the new data source for this tableIllegalArgumentException - if columnModel is nullgetColumnModel()public TableColumnModel getColumnModel()
TableColumnModel that contains all column information
of this table.setColumnModel(javax.swing.table.TableColumnModel)public void setSelectionModel(ListSelectionModel newModel)
newModel
and registers for listener notifications from the new selection model.newModel - the new selection modelIllegalArgumentException - if newModel is nullgetSelectionModel()public ListSelectionModel getSelectionModel()
ListSelectionModel that is used to maintain row
selection state.null
if row selection is not allowedsetSelectionModel(javax.swing.ListSelectionModel)public void tableChanged(TableModelEvent e)
TableModel generates
a TableModelEvent.
The TableModelEvent should be constructed in the
coordinate system of the model; the appropriate mapping to the
view coordinate system is performed by this JTable
when it receives the event.
Application code will not use these methods explicitly, they are used internally by JTable.
tableChanged in interface TableModelListenerpublic void columnAdded(TableColumnModelEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
columnAdded in interface TableColumnModelListenerTableColumnModelListenerpublic void columnRemoved(TableColumnModelEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
columnRemoved in interface TableColumnModelListenerTableColumnModelListenerpublic void columnMoved(TableColumnModelEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
columnMoved in interface TableColumnModelListenere - the event receivedTableColumnModelListenerpublic void columnMarginChanged(ChangeEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
columnMarginChanged in interface TableColumnModelListenere - the event receivedTableColumnModelListenerpublic void columnSelectionChanged(ListSelectionEvent e)
TableColumnModel
is changed.
Application code will not use these methods explicitly, they are used internally by JTable.
columnSelectionChanged in interface TableColumnModelListenere - the event receivedTableColumnModelListenerpublic void valueChanged(ListSelectionEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
valueChanged in interface ListSelectionListenere - the event receivedListSelectionListenerpublic void editingStopped(ChangeEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
editingStopped in interface CellEditorListenere - the event receivedCellEditorListenerpublic void editingCanceled(ChangeEvent e)
Application code will not use these methods explicitly, they are used internally by JTable.
editingCanceled in interface CellEditorListenere - the event receivedCellEditorListenerpublic void setPreferredScrollableViewportSize(Dimension size)
size - a Dimension object specifying the preferredSize of a
JViewport whose view is this tableScrollable.getPreferredScrollableViewportSize()public Dimension getPreferredScrollableViewportSize()
getPreferredScrollableViewportSize in interface ScrollableDimension object containing the preferredSize of the JViewport
which displays this tableScrollable.getPreferredScrollableViewportSize()
public int getScrollableUnitIncrement(Rectangle visibleRect,
int orientation,
int direction)
This method is called each time the user requests a unit scroll.
getScrollableUnitIncrement in interface ScrollablevisibleRect - the view area visible within the viewportorientation - either SwingConstants.VERTICAL
or SwingConstants.HORIZONTALdirection - less than zero to scroll up/left,
greater than zero for down/rightScrollable.getScrollableUnitIncrement(java.awt.Rectangle, int, int)
public int getScrollableBlockIncrement(Rectangle visibleRect,
int orientation,
int direction)
visibleRect.height or
visibleRect.width,
depending on this table's orientation. Note that as of Swing 1.1.1
(Java 2 v 1.2.2) the value
returned will ensure that the viewport is cleanly aligned on
a row boundary.getScrollableBlockIncrement in interface ScrollablevisibleRect.height or
visibleRect.width
per the orientationScrollable.getScrollableBlockIncrement(java.awt.Rectangle, int, int)public boolean getScrollableTracksViewportWidth()
getScrollableTracksViewportWidth in interface ScrollableScrollable.getScrollableTracksViewportWidth()public boolean getScrollableTracksViewportHeight()
getScrollableTracksViewportHeight in interface ScrollableScrollable.getScrollableTracksViewportHeight()
protected boolean processKeyBinding(KeyStroke ks,
KeyEvent e,
int condition,
boolean pressed)
JComponentks as the result
of the KeyEvent e. This obtains
the appropriate InputMap, gets the binding, gets the action from
the ActionMap, and then (if the action is found and the receiver
is enabled) invokes notifyAction to notify the action.processKeyBinding in class JComponentjavax.swing.JComponentprotected void createDefaultRenderers()
DefaultTableCellRendererprotected void createDefaultEditors()
DefaultCellEditorprotected void initializeLocalVars()
protected TableModel createDefaultDataModel()
DefaultTableModel. A subclass can override this
method to return a different table model object.DefaultTableModelprotected TableColumnModel createDefaultColumnModel()
DefaultTableColumnModel. A subclass can override this
method to return a different column model object.DefaultTableColumnModelprotected ListSelectionModel createDefaultSelectionModel()
DefaultListSelectionModel. A subclass can override this
method to return a different selection model object.DefaultListSelectionModelprotected JTableHeader createDefaultTableHeader()
JTableHeader. A subclass can override this
method to return a different table header object.JTableHeaderprotected void resizeAndRepaint()
revalidate followed by repaint.public TableCellEditor getCellEditor()
TableCellEditor that does the editingcellEditorpublic void setCellEditor(TableCellEditor anEditor)
cellEditor variable.anEditor - the TableCellEditor that does the editingcellEditorpublic void setEditingColumn(int aColumn)
editingColumn variable.aColumn - the column of the cell to be editededitingColumnpublic void setEditingRow(int aRow)
editingRow variable.aRow - the row of the cell to be editededitingRow
public TableCellRenderer getCellRenderer(int row,
int column)
TableColumn for this column has a non-null
renderer, returns that. If not, finds the class of the data in
this column (using getColumnClass)
and returns the default renderer for this type of data.
Note: Throughout the table package, the internal implementations always use this method to provide renderers so that this default behavior can be safely overridden by a subclass.
row - the row of the cell to render, where 0 is the first rowcolumn - the column of the cell to render,
where 0 is the first columnnull
returns the default renderer
for this type of objectDefaultTableCellRenderer,
TableColumn.setCellRenderer(javax.swing.table.TableCellRenderer),
setDefaultRenderer(java.lang.Class, javax.swing.table.TableCellRenderer)
public Component prepareRenderer(TableCellRenderer renderer,
int row,
int column)
row, column.
Note: Throughout the table package, the internal implementations always use this method to prepare renderers so that this default behavior can be safely overridden by a subclass.
renderer - the TableCellRenderer to preparerow - the row of the cell to render, where 0 is the first rowcolumn - the column of the cell to render,
where 0 is the first column
public TableCellEditor getCellEditor(int row,
int column)
row and column. If the
TableColumn for this column has a non-null editor,
returns that. If not, finds the class of the data in this
column (using getColumnClass)
and returns the default editor for this type of data.
Note: Throughout the table package, the internal implementations always use this method to provide editors so that this default behavior can be safely overridden by a subclass.
row - the row of the cell to edit, where 0 is the first rowcolumn - the column of the cell to edit,
where 0 is the first columnnull return the default editor for
this type of cellDefaultCellEditor
public Component prepareEditor(TableCellEditor editor,
int row,
int column)
row, column.
Note: Throughout the table package, the internal implementations always use this method to prepare editors so that this default behavior can be safely overridden by a subclass.
editor - the TableCellEditor to set uprow - the row of the cell to edit,
where 0 is the first rowcolumn - the column of the cell to edit,
where 0 is the first columnComponent being editedpublic void removeEditor()
protected String paramString()
null.paramString in class JComponentpublic boolean isManagingFocus()
JComponent
returns false, to return true. This allows us to give a special
meaning to TAB and SHIFT-TAB in the JTable.isManagingFocus in class JComponentpublic boolean isFocusTraversable()
JComponent
returns false, to return true. This indicates that the JTable
is a component that should be part of a (tabbing) focus cycle
by default.isFocusTraversable in class JComponentpublic AccessibleContext getAccessibleContext()
getAccessibleContext in interface AccessiblegetAccessibleContext in class JComponent
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