Class ArffTableModel

  • All Implemented Interfaces:
    javax.swing.table.TableModel, Undoable

    public class ArffTableModel
    extends java.lang.Object
    implements javax.swing.table.TableModel, Undoable
    The model for the Arff-Viewer.
    Version:
    $Revision: 9014 $
    Author:
    FracPete (fracpete at waikato dot ac dot nz)
    • Constructor Summary

      Constructors 
      Constructor Description
      ArffTableModel​(java.lang.String filename)
      initializes the object and loads the given file
      ArffTableModel​(Instances data)
      initializes the model with the given data
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addTableModelListener​(javax.swing.event.TableModelListener l)
      adds a listener to the list that is notified each time a change to data model occurs
      void addUndoPoint()
      adds an undo point to the undo history, if the undo support is enabled
      void attributeAsClassAt​(int columnIndex)
      sets the attribute at the given col index as the new class attribute, i.e.
      boolean canUndo()
      returns whether an undo is possible, i.e.
      void clearUndo()
      removes the undo history
      void deleteAttributeAt​(int columnIndex)
      deletes the attribute at the given col index.
      void deleteAttributeAt​(int columnIndex, boolean notify)
      deletes the attribute at the given col index
      void deleteAttributes​(int[] columnIndices)
      deletes the attributes at the given indices
      void deleteInstanceAt​(int rowIndex)
      deletes the instance at the given index
      void deleteInstanceAt​(int rowIndex, boolean notify)
      deletes the instance at the given index
      void deleteInstances​(int[] rowIndices)
      deletes the instances at the given positions
      Attribute getAttributeAt​(int columnIndex)
      returns the attribute at the given index, can be NULL if not an attribute column
      int getAttributeColumn​(java.lang.String name)
      returns the column of the given attribute name, -1 if not found
      java.lang.Class getColumnClass​(int columnIndex)
      returns the most specific superclass for all the cell values in the column (always String)
      int getColumnCount()
      returns the number of columns in the model
      java.lang.String getColumnName​(int columnIndex)
      returns the name of the column at columnIndex
      Instances getInstances()
      returns the data
      double getInstancesValueAt​(int rowIndex, int columnIndex)
      returns the double value of the underlying Instances object at the given position, -1 if out of bounds
      int getRowCount()
      returns the number of rows in the model
      int getType​(int columnIndex)
      returns the TYPE of the attribute at the given position
      int getType​(int rowIndex, int columnIndex)
      returns the TYPE of the attribute at the given position
      java.lang.Object getValueAt​(int rowIndex, int columnIndex)
      returns the value for the cell at columnindex and rowIndex
      boolean isCellEditable​(int rowIndex, int columnIndex)
      returns true if the cell at rowindex and columnindexis editable
      boolean isMissingAt​(int rowIndex, int columnIndex)
      checks whether the value at the given position is missing
      boolean isNotificationEnabled()
      returns whether the notification of changes is enabled
      boolean isReadOnly()
      returns whether the model is read-only
      boolean isUndoEnabled()
      returns whether undo support is enabled
      void notifyListener​(javax.swing.event.TableModelEvent e)
      notfies all listener of the change of the model
      void removeTableModelListener​(javax.swing.event.TableModelListener l)
      removes a listener from the list that is notified each time a change to the data model occurs
      void renameAttributeAt​(int columnIndex, java.lang.String newName)
      renames the attribute at the given col index
      void setInstances​(Instances data)
      sets the data
      void setNotificationEnabled​(boolean enabled)
      sets whether the notification of changes is enabled
      void setReadOnly​(boolean value)
      sets whether the model is read-only
      void setUndoEnabled​(boolean enabled)
      sets whether undo support is enabled
      void setValueAt​(java.lang.Object aValue, int rowIndex, int columnIndex)
      sets the value in the cell at columnIndex and rowIndex to aValue.
      void setValueAt​(java.lang.Object aValue, int rowIndex, int columnIndex, boolean notify)
      sets the value in the cell at columnIndex and rowIndex to aValue.
      void sortInstances​(int columnIndex)
      sorts the instances via the given attribute
      void undo()
      undoes the last action
      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • ArffTableModel

        public ArffTableModel​(java.lang.String filename)
        initializes the object and loads the given file
        Parameters:
        filename - the file to load
      • ArffTableModel

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

      • 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
      • 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,
                                      java.lang.String newName)
        renames the attribute at the given col index
        Parameters:
        columnIndex - the index of the column
        newName - the new name 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
      • 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
        Parameters:
        columnIndex - the index of the column
      • getAttributeColumn

        public int getAttributeColumn​(java.lang.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 java.lang.Class getColumnClass​(int columnIndex)
        returns the most specific superclass for all the cell values in the column (always String)
        Specified by:
        getColumnClass in interface javax.swing.table.TableModel
        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 javax.swing.table.TableModel
        Returns:
        the number of columns
      • getColumnName

        public java.lang.String getColumnName​(int columnIndex)
        returns the name of the column at columnIndex
        Specified by:
        getColumnName in interface javax.swing.table.TableModel
        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 javax.swing.table.TableModel
        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 java.lang.Object getValueAt​(int rowIndex,
                                           int columnIndex)
        returns the value for the cell at columnindex and rowIndex
        Specified by:
        getValueAt in interface javax.swing.table.TableModel
        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 javax.swing.table.TableModel
        Parameters:
        rowIndex - the index of the row
        columnIndex - the index of the column
        Returns:
        true if the cell is editable
      • setValueAt

        public void setValueAt​(java.lang.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 javax.swing.table.TableModel
        Parameters:
        aValue - the new value
        rowIndex - the row index
        columnIndex - the column index
      • setValueAt

        public void setValueAt​(java.lang.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​(javax.swing.event.TableModelListener l)
        adds a listener to the list that is notified each time a change to data model occurs
        Specified by:
        addTableModelListener in interface javax.swing.table.TableModel
        Parameters:
        l - the listener to add
      • removeTableModelListener

        public void removeTableModelListener​(javax.swing.event.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 javax.swing.table.TableModel
        Parameters:
        l - the listener to remove
      • notifyListener

        public void notifyListener​(javax.swing.event.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