Package weka.gui.arffviewer

Class ArffTableModel

java.lang.Object
javax.swing.table.AbstractTableModel
javax.swing.table.DefaultTableModel
weka.gui.arffviewer.ArffTableModel
All Implemented Interfaces:
Serializable, TableModel, Undoable
public class ArffTableModel extends DefaultTableModel implements Undoable
The model for the Arff-Viewer.
Version:
$Revision: 15571 $
Author:
FracPete (fracpete at waikato dot ac dot nz)
See Also:

  • Constructor Details

    • ArffTableModel

      public ArffTableModel(String filename, AbstractFileLoader... loaders)
      initializes the object and loads the given file
      Parameters:
      filename - the file to load
      loaders - optional varargs for a loader to use

    • ArffTableModel

      public ArffTableModel(Instances data)
      initializes the model with the given data
      Parameters:
      data - the data to use

  • Method Details

    • isNotificationEnabled

      public boolean isNotificationEnabled()
      returns whether the notification of changes is enabled
      Returns:
      true if notification of changes is enabled

    • setNotificationEnabled

      public void setNotificationEnabled(boolean enabled)
      sets whether the notification of changes is enabled
      Parameters:
      enabled - enables/disables the notification

    • isUndoEnabled

      public boolean isUndoEnabled()
      returns whether undo support is enabled
      Specified by:
      isUndoEnabled in interface Undoable
      Returns:
      true if undo support is enabled

    • setUndoEnabled

      public void setUndoEnabled(boolean enabled)
      sets whether undo support is enabled
      Specified by:
      setUndoEnabled in interface Undoable
      Parameters:
      enabled - whether to enable/disable undo support

    • isReadOnly

      public boolean isReadOnly()
      returns whether the model is read-only
      Returns:
      true if model is read-only

    • setReadOnly

      public void setReadOnly(boolean value)
      sets whether the model is read-only
      Parameters:
      value - if true the model is set to read-only

    • setInstances

      public void setInstances(Instances data)
      sets the data
      Parameters:
      data - the data to use

    • getInstances

      public Instances getInstances()
      returns the data
      Returns:
      the current data

    • getAttributeIndex

      public int getAttributeIndex(int columnIndex)
      Returns the attribute index for the given column index.
      Parameters:
      columnIndex - the column index
      Returns:
      the attribute index

    • isAttribute

      public boolean isAttribute(int columnIndex)
      Check if given index is in range of column indices for attributes
      Parameters:
      columnIndex - the column index
      Returns:
      true if the column corresponds to attribute

    • getAttributeAt

      public Attribute getAttributeAt(int columnIndex)
      returns the attribute at the given index, can be NULL if not an attribute column
      Parameters:
      columnIndex - the index of the column
      Returns:
      the attribute at the position

    • getType

      public int getType(int columnIndex)
      returns the TYPE of the attribute at the given position
      Parameters:
      columnIndex - the index of the column
      Returns:
      the attribute type

    • getType

      public int getType(int rowIndex, int columnIndex)
      returns the TYPE of the attribute at the given position
      Parameters:
      rowIndex - the index of the row
      columnIndex - the index of the column
      Returns:
      the attribute type

    • deleteAttributeAt

      public void deleteAttributeAt(int columnIndex)
      deletes the attribute at the given col index. notifies the listeners.
      Parameters:
      columnIndex - the index of the attribute to delete

    • deleteAttributeAt

      public void deleteAttributeAt(int columnIndex, boolean notify)
      deletes the attribute at the given col index
      Parameters:
      columnIndex - the index of the attribute to delete
      notify - whether to notify the listeners

    • deleteAttributes

      public void deleteAttributes(int[] columnIndices)
      deletes the attributes at the given indices
      Parameters:
      columnIndices - the column indices

    • renameAttributeAt

      public void renameAttributeAt(int columnIndex, String newName)
      renames the attribute at the given col index
      Parameters:
      columnIndex - the index of the column
      newName - the new name of the attribute

    • setAttributeWeightAt

      public void setAttributeWeightAt(int columnIndex, double weight)
      set the attribute weight at the given col index
      Parameters:
      columnIndex - the index of the column
      weight - the new weight of the attribute

    • attributeAsClassAt

      public void attributeAsClassAt(int columnIndex)
      sets the attribute at the given col index as the new class attribute, i.e. it moves it to the end of the attributes
      Parameters:
      columnIndex - the index of the column

    • deleteInstanceAt

      public void deleteInstanceAt(int rowIndex)
      deletes the instance at the given index
      Parameters:
      rowIndex - the index of the row

    • deleteInstanceAt

      public void deleteInstanceAt(int rowIndex, boolean notify)
      deletes the instance at the given index
      Parameters:
      rowIndex - the index of the row
      notify - whether to notify the listeners

    • setInstanceWeight

      public void setInstanceWeight(int index, double weight)

    • setInstanceWeight

      public void setInstanceWeight(int index, double weight, boolean notify)

    • insertInstance

      public void insertInstance(int index)

    • insertInstance

      public void insertInstance(int index, boolean notify)

    • deleteInstances

      public void deleteInstances(int[] rowIndices)
      deletes the instances at the given positions
      Parameters:
      rowIndices - the indices to delete

    • sortInstances

      public void sortInstances(int columnIndex)
      sorts the instances via the given attribute (ascending)
      Parameters:
      columnIndex - the index of the column

    • sortInstances

      public void sortInstances(int columnIndex, boolean ascending)
      sorts the instances via the given attribute
      Parameters:
      columnIndex - the index of the column
      ascending - ascending if true, otherwise descending

    • getAttributeColumn

      public int getAttributeColumn(String name)
      returns the column of the given attribute name, -1 if not found
      Parameters:
      name - the name of the attribute
      Returns:
      the column index or -1 if not found

    • getColumnClass

      public Class<?> getColumnClass(int columnIndex)
      returns the most specific superclass for all the cell values in the column (always String)
      Specified by:
      getColumnClass in interface TableModel
      Overrides:
      getColumnClass in class AbstractTableModel
      Parameters:
      columnIndex - the column index
      Returns:
      the class of the column

    • getColumnCount

      public int getColumnCount()
      returns the number of columns in the model
      Specified by:
      getColumnCount in interface TableModel
      Overrides:
      getColumnCount in class DefaultTableModel
      Returns:
      the number of columns

    • getColumnName

      public String getColumnName(int columnIndex)
      returns the name of the column at columnIndex
      Specified by:
      getColumnName in interface TableModel
      Overrides:
      getColumnName in class DefaultTableModel
      Parameters:
      columnIndex - the index of the column
      Returns:
      the name of the column

    • getRowCount

      public int getRowCount()
      returns the number of rows in the model
      Specified by:
      getRowCount in interface TableModel
      Overrides:
      getRowCount in class DefaultTableModel
      Returns:
      the number of rows

    • isMissingAt

      public boolean isMissingAt(int rowIndex, int columnIndex)
      checks whether the value at the given position is missing
      Parameters:
      rowIndex - the row index
      columnIndex - the column index
      Returns:
      true if the value at the position is missing

    • getInstancesValueAt

      public double getInstancesValueAt(int rowIndex, int columnIndex)
      returns the double value of the underlying Instances object at the given position, -1 if out of bounds
      Parameters:
      rowIndex - the row index
      columnIndex - the column index
      Returns:
      the underlying value in the Instances object

    • getValueAt

      public Object getValueAt(int rowIndex, int columnIndex)
      returns the value for the cell at columnIndex and rowIndex
      Specified by:
      getValueAt in interface TableModel
      Overrides:
      getValueAt in class DefaultTableModel
      Parameters:
      rowIndex - the row index
      columnIndex - the column index
      Returns:
      the value at the position

    • isCellEditable

      public boolean isCellEditable(int rowIndex, int columnIndex)
      returns true if the cell at rowindex and columnindexis editable
      Specified by:
      isCellEditable in interface TableModel
      Overrides:
      isCellEditable in class DefaultTableModel
      Parameters:
      rowIndex - the index of the row
      columnIndex - the index of the column
      Returns:
      true if the cell is editable

    • setValueAt

      public void setValueAt(Object aValue, int rowIndex, int columnIndex)
      sets the value in the cell at columnIndex and rowIndex to aValue. but only the value and the value can be changed
      Specified by:
      setValueAt in interface TableModel
      Overrides:
      setValueAt in class DefaultTableModel
      Parameters:
      aValue - the new value
      rowIndex - the row index
      columnIndex - the column index

    • setValueAt

      public void setValueAt(Object aValue, int rowIndex, int columnIndex, boolean notify)
      sets the value in the cell at columnIndex and rowIndex to aValue. but only the value and the value can be changed
      Parameters:
      aValue - the new value
      rowIndex - the row index
      columnIndex - the column index
      notify - whether to notify the listeners

    • addTableModelListener

      public void addTableModelListener(TableModelListener l)
      adds a listener to the list that is notified each time a change to data model occurs
      Specified by:
      addTableModelListener in interface TableModel
      Overrides:
      addTableModelListener in class AbstractTableModel
      Parameters:
      l - the listener to add

    • removeTableModelListener

      public void removeTableModelListener(TableModelListener l)
      removes a listener from the list that is notified each time a change to the data model occurs
      Specified by:
      removeTableModelListener in interface TableModel
      Overrides:
      removeTableModelListener in class AbstractTableModel
      Parameters:
      l - the listener to remove

    • notifyListener

      public void notifyListener(TableModelEvent e)
      notfies all listener of the change of the model
      Parameters:
      e - the event to send to the listeners

    • clearUndo

      public void clearUndo()
      removes the undo history
      Specified by:
      clearUndo in interface Undoable

    • canUndo

      public boolean canUndo()
      returns whether an undo is possible, i.e. whether there are any undo points saved so far
      Specified by:
      canUndo in interface Undoable
      Returns:
      returns TRUE if there is an undo possible

    • undo

      public void undo()
      undoes the last action
      Specified by:
      undo in interface Undoable

    • addUndoPoint

      public void addUndoPoint()
      adds an undo point to the undo history, if the undo support is enabled
      Specified by:
      addUndoPoint in interface Undoable
      See Also:

    • setShowAttributeIndex

      public void setShowAttributeIndex(boolean value)
      Sets whether to display the attribute index in the header.
      Parameters:
      value - if true then the attribute indices are displayed in the table header

    • getShowAttributeIndex

      public boolean getShowAttributeIndex()
      Returns whether to display the attribute index in the header.
      Returns:
      true if the attribute indices are displayed in the table header