TableColumnModel (Java Platform SE 8 )

All Known Implementing Classes:

DefaultTableColumnModel
```
public interface TableColumnModel
```
Defines the requirements for a table column model object suitable for use with JTable.

See Also:

DefaultTableColumnModel

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`addColumn(TableColumn aColumn)` Appends `aColumn` to the end of the `tableColumns` array.
`void`	`addColumnModelListener(TableColumnModelListener x)` Adds a listener for table column model events.
`TableColumn`	`getColumn(int columnIndex)` Returns the `TableColumn` object for the column at `columnIndex`.
`int`	`getColumnCount()` Returns the number of columns in the model.
`int`	`getColumnIndex(Object columnIdentifier)` Returns the index of the first column in the table whose identifier is equal to `identifier`, when compared using `equals`.
`int`	`getColumnIndexAtX(int xPosition)` Returns the index of the column that lies on the horizontal point, `xPosition`; or -1 if it lies outside the any of the column's bounds.
`int`	`getColumnMargin()` Returns the width between the cells in each column.
`Enumeration<TableColumn>`	`getColumns()` Returns an `Enumeration` of all the columns in the model.
`boolean`	`getColumnSelectionAllowed()` Returns true if columns may be selected.
`int`	`getSelectedColumnCount()` Returns the number of selected columns.
`int[]`	`getSelectedColumns()` Returns an array of indicies of all selected columns.
`ListSelectionModel`	`getSelectionModel()` Returns the current selection model.
`int`	`getTotalColumnWidth()` Returns the total width of all the columns.
`void`	`moveColumn(int columnIndex, int newIndex)` Moves the column and its header at `columnIndex` to `newIndex`.
`void`	`removeColumn(TableColumn column)` Deletes the `TableColumn` `column` from the `tableColumns` array.
`void`	`removeColumnModelListener(TableColumnModelListener x)` Removes a listener for table column model events.
`void`	`setColumnMargin(int newMargin)` Sets the `TableColumn`'s column margin to `newMargin`.
`void`	`setColumnSelectionAllowed(boolean flag)` Sets whether the columns in this model may be selected.
`void`	`setSelectionModel(ListSelectionModel newModel)` Sets the selection model.

- Method Detail
  - addColumn
```
void addColumn(TableColumn aColumn)
```
    Appends aColumn to the end of the tableColumns array. This method posts a columnAdded event to its listeners.
    
    Parameters:
    
    aColumn - the TableColumn to be added
    
    See Also:
    
    removeColumn(javax.swing.table.TableColumn)
  - removeColumn
```
void removeColumn(TableColumn column)
```
    Deletes the TableColumn column from the tableColumns array. This method will do nothing if column is not in the table's column list. This method posts a columnRemoved event to its listeners.
    
    Parameters:
    
    column - the TableColumn to be removed
    
    See Also:
    
    addColumn(javax.swing.table.TableColumn)
  - moveColumn
```
void moveColumn(int columnIndex,
                int newIndex)
```
    Moves the column and its header at columnIndex to newIndex. The old column at columnIndex will now be found at newIndex. The column that used to be at newIndex is shifted left or right to make room. This will not move any columns if columnIndex equals newIndex. This method posts a columnMoved event to its listeners.
    
    Parameters:
    
    columnIndex - the index of column to be moved
    
    newIndex - index of the column's new location
    
    Throws:
    
    IllegalArgumentException - if columnIndex or newIndex are not in the valid range
  - setColumnMargin
```
void setColumnMargin(int newMargin)
```
    Sets the TableColumn's column margin to newMargin. This method posts a columnMarginChanged event to its listeners.
    
    Parameters:
    
    newMargin - the width, in pixels, of the new column margins
    
    See Also:
    
    getColumnMargin()
  - getColumnCount
```
int getColumnCount()
```
    Returns the number of columns in the model.
    
    Returns:
    
    the number of columns in the model
  - getColumns
```
Enumeration<TableColumn> getColumns()
```
    Returns an Enumeration of all the columns in the model.
    
    Returns:
    
    an Enumeration of all the columns in the model
  - getColumnIndex
```
int getColumnIndex(Object columnIdentifier)
```
    Returns the index of the first column in the table whose identifier is equal to identifier, when compared using equals.
    
    Parameters:
    
    columnIdentifier - the identifier object
    
    Returns:
    
    the index of the first table column whose identifier is equal to identifier
    
    Throws:
    
    IllegalArgumentException - if identifier is null, or no TableColumn has this identifier
    
    See Also:
    
    getColumn(int)
  - getColumn
```
TableColumn getColumn(int columnIndex)
```
    Returns the TableColumn object for the column at columnIndex.
    
    Parameters:
    
    columnIndex - the index of the desired column
    
    Returns:
    
    the TableColumn object for the column at columnIndex
  - getColumnMargin
```
int getColumnMargin()
```
    Returns the width between the cells in each column.
    
    Returns:
    
    the margin, in pixels, between the cells
  - getColumnIndexAtX
```
int getColumnIndexAtX(int xPosition)
```
    Returns the index of the column that lies on the horizontal point, xPosition; or -1 if it lies outside the any of the column's bounds. In keeping with Swing's separable model architecture, a TableColumnModel does not know how the table columns actually appear on screen. The visual presentation of the columns is the responsibility of the view/controller object using this model (typically JTable). The view/controller need not display the columns sequentially from left to right. For example, columns could be displayed from right to left to accommodate a locale preference or some columns might be hidden at the request of the user. Because the model does not know how the columns are laid out on screen, the given xPosition should not be considered to be a coordinate in 2D graphics space. Instead, it should be considered to be a width from the start of the first column in the model. If the column index for a given X coordinate in 2D space is required, JTable.columnAtPoint can be used instead.
    
    Returns:
    
    the index of the column; or -1 if no column is found
    
    See Also:
    
    JTable.columnAtPoint(java.awt.Point)
  - getTotalColumnWidth
```
int getTotalColumnWidth()
```
    Returns the total width of all the columns.
    
    Returns:
    
    the total computed width of all columns
  - setColumnSelectionAllowed
```
void setColumnSelectionAllowed(boolean flag)
```
    Sets whether the columns in this model may be selected.
    
    Parameters:
    
    flag - true if columns may be selected; otherwise false
    
    See Also:
    
    getColumnSelectionAllowed()
  - getColumnSelectionAllowed
```
boolean getColumnSelectionAllowed()
```
    Returns true if columns may be selected.
    
    Returns:
    
    true if columns may be selected
    
    See Also:
    
    setColumnSelectionAllowed(boolean)
  - getSelectedColumns
```
int[] getSelectedColumns()
```
    Returns an array of indicies of all selected columns.
    
    Returns:
    
    an array of integers containing the indicies of all selected columns; or an empty array if nothing is selected
  - getSelectedColumnCount
```
int getSelectedColumnCount()
```
    Returns the number of selected columns.
    
    Returns:
    
    the number of selected columns; or 0 if no columns are selected
  - setSelectionModel
```
void setSelectionModel(ListSelectionModel newModel)
```
    Sets the selection model.
    
    Parameters:
    
    newModel - a ListSelectionModel object
    
    See Also:
    
    getSelectionModel()
  - getSelectionModel
```
ListSelectionModel getSelectionModel()
```
    Returns the current selection model.
    
    Returns:
    
    a ListSelectionModel object
    
    See Also:
    
    setSelectionModel(javax.swing.ListSelectionModel)
  - addColumnModelListener
```
void addColumnModelListener(TableColumnModelListener x)
```
    Adds a listener for table column model events.
    
    Parameters:
    
    x - a TableColumnModelListener object
  - removeColumnModelListener
```
void removeColumnModelListener(TableColumnModelListener x)
```
    Removes a listener for table column model events.
    
    Parameters:
    
    x - a TableColumnModelListener object

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Interface TableColumnModel

Method Summary

Method Detail

addColumn

removeColumn

moveColumn

setColumnMargin

getColumnCount

getColumns

getColumnIndex

getColumn

getColumnMargin

getColumnIndexAtX

getTotalColumnWidth

setColumnSelectionAllowed

getColumnSelectionAllowed

getSelectedColumns

getSelectedColumnCount

setSelectionModel

getSelectionModel

addColumnModelListener

removeColumnModelListener