Package Summary  Overview Summary

class:DefaultTableModel [CHANGED]

All Implemented Interfaces:
Serializable, TableModel

public class DefaultTableModel
extends AbstractTableModel
implements Serializable
This is an implementation of TableModel that uses a Vector of Vectors to store the cell value objects.

Warning:DefaultTableModel returns a column class of Object. When DefaultTableModel is used with a TableRowSorter this will result in extensive use of toString, which for non-String data types is expensive. If you use DefaultTableModel with a TableRowSorter you are strongly encouraged to override getColumnClass to return the appropriate type.

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. As of 1.4, support for long term storage of all JavaBeans™JavaBeans has been added to the java.beans package. Please see XMLEncoder.

See Also:
TableModel, getDataVector()
All Implemented Interfaces:
Serializable, TableModel

public class DefaultTableModel
extends AbstractTableModel
implements Serializable
This is an implementation of TableModel that uses a Vector of Vectors to store the cell value objects.

Warning:DefaultTableModel returns a column class of Object. When DefaultTableModel is used with a TableRowSorter this will result in extensive use of toString, which for non-String data types is expensive. If you use DefaultTableModel with a TableRowSorter you are strongly encouraged to override getColumnClass to return the appropriate type.

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. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans package. Please see XMLEncoder.

See Also:
TableModel, getDataVector()
All Implemented Interfaces:
Serializable, TableModel

public class DefaultTableModel
extends AbstractTableModel
implements Serializable
This is an implementation of TableModel that uses a Vector of Vectors to store the cell value objects.

Warning:DefaultTableModel returns a column class of Object. When DefaultTableModel is used with a TableRowSorter this will result in extensive use of toString, which for non-String data types is expensive. If you use DefaultTableModel with a TableRowSorter you are strongly encouraged to override getColumnClass to return the appropriate type.

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. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

See Also:
TableModel, getDataVector()

field:dataVector [NONE]

  • dataVector

    protected Vector<Vector> dataVector
    The Vector of Vectors of Object values.
  • field:columnIdentifiers [NONE]

    columnIdentifiers

    protected Vector columnIdentifiers
    The Vector of column identifiers.

    constructor:DefaultTableModel() [NONE]

  • DefaultTableModel

    public DefaultTableModel()
    Constructs a default DefaultTableModel which is a table of zero columns and zero rows.
  • constructor:DefaultTableModel(int,int) [NONE]

    DefaultTableModel

    public DefaultTableModel?(int rowCount, int columnCount)
    Constructs a DefaultTableModel with rowCount and columnCount of null object values.
    Parameters:
    rowCount - the number of rows the table holds
    columnCount - the number of columns the table holds
    See Also:
    setValueAt(java.lang.Object, int, int)

    constructor:DefaultTableModel(java.util.Vector,int) [NONE]

    DefaultTableModel

    public DefaultTableModel?(Vector<?> columnNames, int rowCount)
    Constructs a DefaultTableModel with as many columns as there are elements in columnNames and rowCount of null object values. Each column's name will be taken from the columnNames vector.
    Parameters:
    columnNames - vector containing the names of the new columns; if this is null then the model has no columns
    rowCount - the number of rows the table holds
    See Also:
    setDataVector(java.util.Vector<? extends java.util.Vector>, java.util.Vector<?>) , setValueAt(java.lang.Object, int, int)

    constructor:DefaultTableModel(java.lang.Object[],int) [NONE]

    DefaultTableModel

    public DefaultTableModel?(Object[] columnNames, int rowCount)
    Constructs a DefaultTableModel with as many columns as there are elements in columnNames and rowCount of null object values. Each column's name will be taken from the columnNames array.
    Parameters:
    columnNames - array containing the names of the new columns; if this is null then the model has no columns
    rowCount - the number of rows the table holds
    See Also:
    setDataVector(java.util.Vector<? extends java.util.Vector>, java.util.Vector<?>) , setValueAt(java.lang.Object, int, int)

    constructor:DefaultTableModel(java.util.Vector,java.util.Vector) [NONE]

    DefaultTableModel

    public DefaultTableModel?(Vector<? extends Vector> data, Vector<?> columnNames)
    Constructs a DefaultTableModel and initializes the table by passing data and columnNames to the setDataVector method.
    Parameters:
    data - the data of the table, a Vector of Vectors of Object values
    columnNames - vector containing the names of the new columns
    See Also:
    getDataVector(), setDataVector(java.util.Vector<? extends java.util.Vector>, java.util.Vector<?>)

    constructor:DefaultTableModel(java.lang.Object[][],java.lang.Object[]) [NONE]

    DefaultTableModel

    public DefaultTableModel?(Object[][] data, Object[] columnNames)
    Constructs a DefaultTableModel and initializes the table by passing data and columnNames to the setDataVector method. The first index in the Object[][] array is the row index and the second is the column index.
    Parameters:
    data - the data of the table
    columnNames - the names of the columns
    See Also:
    getDataVector(), setDataVector(java.util.Vector<? extends java.util.Vector>, java.util.Vector<?>)

    method:getDataVector() [NONE]

  • getDataVector

    public Vector<Vector> getDataVector()
    Returns the Vector of Vectors that contains the table's data values. The vectors contained in the outer vector are each a single row of values. In other words, to get to the cell at row 1, column 5:

    ((Vector)getDataVector().elementAt(1)).elementAt(5);

    Returns:
    the vector of vectors containing the tables data values
    See Also:
    newDataAvailable(javax.swing.event.TableModelEvent), newRowsAdded(javax.swing.event.TableModelEvent), setDataVector(java.util.Vector<? extends java.util.Vector>, java.util.Vector<?>)
  • method:setDataVector(java.util.Vector,java.util.Vector) [NONE]

    setDataVector

    public void setDataVector?(Vector<? extends Vector> dataVector, Vector<?> columnIdentifiers)
    Replaces the current dataVector instance variable with the new Vector of rows, dataVector. Each row is represented in dataVector as a Vector of Object values. columnIdentifiers are the names of the new columns. The first name in columnIdentifiers is mapped to column 0 in dataVector. Each row in dataVector is adjusted to match the number of columns in columnIdentifiers either by truncating the Vector if it is too long, or adding null values if it is too short.

    Note that passing in a null value for dataVector results in unspecified behavior, an possibly an exception.

    Parameters:
    dataVector - the new data vector
    columnIdentifiers - the names of the columns
    See Also:
    getDataVector()

    method:setDataVector(java.lang.Object[][],java.lang.Object[]) [NONE]

    setDataVector

    public void setDataVector?(Object[][] dataVector, Object[] columnIdentifiers)
    Replaces the value in the dataVector instance variable with the values in the array dataVector. The first index in the Object[][] array is the row index and the second is the column index. columnIdentifiers are the names of the new columns.
    Parameters:
    dataVector - the new data vector
    columnIdentifiers - the names of the columns
    See Also:
    setDataVector(Vector, Vector)

    method:newDataAvailable(javax.swing.event.TableModelEvent) [NONE]

    newDataAvailable

    public void newDataAvailable?(TableModelEvent event)
    Equivalent to fireTableChanged.
    Parameters:
    event - the change event

    method:newRowsAdded(javax.swing.event.TableModelEvent) [NONE]

    newRowsAdded

    public void newRowsAdded?(TableModelEvent e)
    Ensures that the new rows have the correct number of columns. This is accomplished by using the setSize method in Vector which truncates vectors which are too long, and appends nulls if they are too short. This method also sends out a tableChanged notification message to all the listeners.
    Parameters:
    e - this TableModelEvent describes where the rows were added. If null it assumes all the rows were newly added
    See Also:
    getDataVector()

    method:rowsRemoved(javax.swing.event.TableModelEvent) [NONE]

    rowsRemoved

    public void rowsRemoved?(TableModelEvent event)
    Equivalent to fireTableChanged.
    Parameters:
    event - the change event

    method:setNumRows(int) [NONE]

    setNumRows

    public void setNumRows?(int rowCount)
    Obsolete as of Java 2 platform v1.3. Please use setRowCount instead.
    Parameters:
    rowCount - the new number of rows

    method:setRowCount(int) [NONE]

    setRowCount

    public void setRowCount?(int rowCount)
    Sets the number of rows in the model. If the new size is greater than the current size, new rows are added to the end of the model If the new size is less than the current size, all rows at index rowCount and greater are discarded.
    Parameters:
    rowCount - number of rows in the model
    Since:
    1.3
    See Also:
    setColumnCount(int)

    method:addRow(java.util.Vector) [NONE]

    addRow

    public void addRow?(Vector<?> rowData)
    Adds a row to the end of the model. The new row will contain null values unless rowData is specified. Notification of the row being added will be generated.
    Parameters:
    rowData - optional data of the row being added

    method:addRow(java.lang.Object[]) [NONE]

    addRow

    public void addRow?(Object[] rowData)
    Adds a row to the end of the model. The new row will contain null values unless rowData is specified. Notification of the row being added will be generated.
    Parameters:
    rowData - optional data of the row being added

    method:insertRow(int,java.util.Vector) [NONE]

    insertRow

    public void insertRow?(int row, Vector<?> rowData)
    Inserts a row at row in the model. The new row will contain null values unless rowData is specified. Notification of the row being added will be generated.
    Parameters:
    row - the row index of the row to be inserted
    rowData - optional data of the row being added
    Throws:
    ArrayIndexOutOfBoundsException - if the row was invalid

    method:insertRow(int,java.lang.Object[]) [NONE]

    insertRow

    public void insertRow?(int row, Object[] rowData)
    Inserts a row at row in the model. The new row will contain null values unless rowData is specified. Notification of the row being added will be generated.
    Parameters:
    row - the row index of the row to be inserted
    rowData - optional data of the row being added
    Throws:
    ArrayIndexOutOfBoundsException - if the row was invalid

    method:moveRow(int,int,int) [NONE]

    moveRow

    public void moveRow?(int start, int end, int to)
    Moves one or more rows from the inclusive range start to end to the to position in the model. After the move, the row that was at index start will be at index to. This method will send a tableChanged notification message to all the listeners.
      Examples of moves:
    
      1. moveRow(1,3,5);
              a|B|C|D|e|f|g|h|i|j|k   - before
              a|e|f|g|h|B|C|D|i|j|k   - after
    
      2. moveRow(6,7,1);
              a|b|c|d|e|f|G|H|i|j|k   - before
              a|G|H|b|c|d|e|f|i|j|k   - after
      
    Parameters:
    start - the starting row index to be moved
    end - the ending row index to be moved
    to - the destination of the rows to be moved
    Throws:
    ArrayIndexOutOfBoundsException - if any of the elements would be moved out of the table's range

    method:removeRow(int) [NONE]

    removeRow

    public void removeRow?(int row)
    Removes the row at row from the model. Notification of the row being removed will be sent to all the listeners.
    Parameters:
    row - the row index of the row to be removed
    Throws:
    ArrayIndexOutOfBoundsException - if the row was invalid

    method:setColumnIdentifiers(java.util.Vector) [NONE]

    setColumnIdentifiers

    public void setColumnIdentifiers?(Vector<?> columnIdentifiers)
    Replaces the column identifiers in the model. If the number of newIdentifiers is greater than the current number of columns, new columns are added to the end of each row in the model. If the number of newIdentifiers is less than the current number of columns, all the extra columns at the end of a row are discarded.
    Parameters:
    columnIdentifiers - vector of column identifiers. If null, set the model to zero columns
    See Also:
    setNumRows(int)

    method:setColumnIdentifiers(java.lang.Object[]) [NONE]

    setColumnIdentifiers

    public void setColumnIdentifiers?(Object[] newIdentifiers)
    Replaces the column identifiers in the model. If the number of newIdentifiers is greater than the current number of columns, new columns are added to the end of each row in the model. If the number of newIdentifiers is less than the current number of columns, all the extra columns at the end of a row are discarded.
    Parameters:
    newIdentifiers - array of column identifiers. If null, set the model to zero columns
    See Also:
    setNumRows(int)

    method:setColumnCount(int) [NONE]

    setColumnCount

    public void setColumnCount?(int columnCount)
    Sets the number of columns in the model. If the new size is greater than the current size, new columns are added to the end of the model with null cell values. If the new size is less than the current size, all columns at index columnCount and greater are discarded.
    Parameters:
    columnCount - the new number of columns in the model
    Since:
    1.3
    See Also:
    setColumnCount(int)

    method:addColumn(java.lang.Object) [NONE]

    addColumn

    public void addColumn?(Object columnName)
    Adds a column to the model. The new column will have the identifier columnName, which may be null. This method will send a tableChanged notification message to all the listeners. This method is a cover for addColumn(Object, Vector) which uses null as the data vector.
    Parameters:
    columnName - the identifier of the column being added

    method:addColumn(java.lang.Object,java.util.Vector) [NONE]

    addColumn

    public void addColumn?(Object columnName, Vector<?> columnData)
    Adds a column to the model. The new column will have the identifier columnName, which may be null. columnData is the optional vector of data for the column. If it is null the column is filled with null values. Otherwise, the new data will be added to model starting with the first element going to row 0, etc. This method will send a tableChanged notification message to all the listeners.
    Parameters:
    columnName - the identifier of the column being added
    columnData - optional data of the column being added

    method:addColumn(java.lang.Object,java.lang.Object[]) [NONE]

    addColumn

    public void addColumn?(Object columnName, Object[] columnData)
    Adds a column to the model. The new column will have the identifier columnName. columnData is the optional array of data for the column. If it is null the column is filled with null values. Otherwise, the new data will be added to model starting with the first element going to row 0, etc. This method will send a tableChanged notification message to all the listeners.
    Parameters:
    columnName - identifier of the newly created column
    columnData - new data to be added to the column
    See Also:
    addColumn(Object, Vector)

    method:getRowCount() [NONE]

    getRowCount

    public int getRowCount()
    Returns the number of rows in this data table.
    Specified by:
    getRowCount in interface TableModel
    Returns:
    the number of rows in the model
    See Also:
    TableModel.getColumnCount()

    method:getColumnCount() [NONE]

    getColumnCount

    public int getColumnCount()
    Returns the number of columns in this data table.
    Specified by:
    getColumnCount in interface TableModel
    Returns:
    the number of columns in the model
    See Also:
    TableModel.getRowCount()

    method:getColumnName(int) [NONE]

    getColumnName

    public String getColumnName?(int column)
    Returns the column name.
    Specified by:
    getColumnName in interface TableModel
    Overrides:
    getColumnName in class AbstractTableModel
    Parameters:
    column - the column being queried
    Returns:
    a name for this column using the string value of the appropriate member in columnIdentifiers. If columnIdentifiers does not have an entry for this index, returns the default name provided by the superclass.

    method:isCellEditable(int,int) [NONE]

    isCellEditable

    public boolean isCellEditable?(int row, int column)
    Returns true regardless of parameter values.
    Specified by:
    isCellEditable in interface TableModel
    Overrides:
    isCellEditable in class AbstractTableModel
    Parameters:
    row - the row whose value is to be queried
    column - the column whose value is to be queried
    Returns:
    true
    See Also:
    setValueAt(java.lang.Object, int, int)

    method:getValueAt(int,int) [NONE]

    getValueAt

    public Object getValueAt?(int row, int column)
    Returns an attribute value for the cell at row and column.
    Specified by:
    getValueAt in interface TableModel
    Parameters:
    row - the row whose value is to be queried
    column - the column whose value is to be queried
    Returns:
    the value Object at the specified cell
    Throws:
    ArrayIndexOutOfBoundsException - if an invalid row or column was given

    method:setValueAt(java.lang.Object,int,int) [NONE]

    setValueAt

    public void setValueAt?(Object aValue, int row, int column)
    Sets the object value for the cell at column and row. aValue is the new value. This method will generate a tableChanged notification.
    Specified by:
    setValueAt in interface TableModel
    Overrides:
    setValueAt in class AbstractTableModel
    Parameters:
    aValue - the new value; this can be null
    row - the row whose value is to be changed
    column - the column whose value is to be changed
    Throws:
    ArrayIndexOutOfBoundsException - if an invalid row or column was given
    See Also:
    TableModel.getValueAt(int, int) , TableModel.isCellEditable(int, int)

    method:convertToVector(java.lang.Object[]) [NONE]

    convertToVector

    protected static  Vector<Object> convertToVector?(Object[] anArray)
    Returns a vector that contains the same objects as the array.
    Parameters:
    anArray - the array to be converted
    Returns:
    the new vector; if anArray is null, returns null

    method:convertToVector(java.lang.Object[][]) [NONE]

    convertToVector

    protected static  Vector<Vector<Object>> convertToVector?(Object[][] anArray)
    Returns a vector of vectors that contains the same objects as the array.
    Parameters:
    anArray - the double array to be converted
    Returns:
    the new vector of vectors; if anArray is null, returns null

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