Package weka.gui.explorer

Class PreprocessPanel

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JPanel

weka.gui.AbstractPerspective

weka.gui.explorer.PreprocessPanel

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, EventListener, Accessible, Explorer.CapabilitiesFilterChangeListener, Explorer.ExplorerPanel, Explorer.LogHandler, Perspective

@PerspectiveInfo(ID="weka.gui.explorer.preprocesspanel",
                 title="Preprocess",
                 toolTipText="Preprocess data",
                 iconPath="weka/gui/weka_icon_new_small.png")
public class PreprocessPanel
extends AbstractPerspective
implements Explorer.CapabilitiesFilterChangeListener, Explorer.ExplorerPanel, Explorer.LogHandler

This panel controls simple preprocessing of instances. Summary information on instances and attributes is shown. Filters may be configured to alter the set of instances. Altered instances may also be saved.

Version:

$Revision: 15682 $

Author:

Richard Kirkby (rkirkby@cs.waikato.ac.nz), Len Trigg (trigg@cs.waikato.ac.nz)

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PreprocessPanel.PreprocessDefaults

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Component

Component.BaselineResizeBehavior

Field Summary

Fields inherited from class javax.swing.JComponent

TOOL_TIP_TEXT_KEY, 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

Constructors

Constructor	Description
PreprocessPanel()	Creates the instances panel with no initial instances.

Method Summary

Modifier and Type	Method	Description
boolean	acceptsInstances()	We can accept instances
void	addPropertyChangeListener(PropertyChangeListener l)	Adds a PropertyChangeListener who will be notified of value changes.
void	addUndoPoint()	Backs up the current state of the dataset, so the changes can be undone.
void	capabilitiesFilterChanged(Explorer.CapabilitiesFilterChangeEvent e)	method gets called in case of a change event
void	edit()	edits the current instances object in the viewer
void	generateInstances()	sets Instances generated via DataGenerators (pops up a Dialog)
Defaults	getDefaultSettings()	Get the default settings for this perspective (or null if there are none)
Explorer	getExplorer()	returns the parent Explorer frame
Instances	getInstances()	Gets the working set of instances.
List<JMenu>	getMenus()	Get an ordered list of menus to appear in the main menu bar.
String	getTabTitle()	Returns the title for the tab in the Explorer
String	getTabTitleToolTip()	Returns the tooltip for the tab in the Explorer
void	instantiationComplete()	We've been instantiated and now have access to the main application and PerspectiveManager
static void	main(String[] args)	Tests out the instance-preprocessing panel from the command line.
void	removePropertyChangeListener(PropertyChangeListener l)	Removes a PropertyChangeListener.
boolean	requiresLog()	Whether this perspective requires a graphical log to write to
void	saveInstancesToFile(AbstractFileSaver saver, Instances inst)	saves the data with the specified saver
void	saveWorkingInstancesToFileQ()	Queries the user for a file to save instances as, then saves the instances in a background process.
void	setActive(boolean active)	Set active status of this perspective.
void	setExplorer(Explorer parent)	Sets the Explorer to use as parent frame (used for sending notifications about changes in the data)
void	setInstances(Instances inst)	Tells the panel to use a new base set of instances.
void	setInstancesFromDB(InstanceQuery iq)	Loads instances from a database
void	setInstancesFromDBQ(String url, String user, String pw, String query)	Loads (non-sparse) instances from an SQL query the user provided with the SqlViewerDialog, then loads the instances in a background process.
void	setInstancesFromDBQ(String url, String user, String pw, String query, boolean sparse)	Loads instances from an SQL query the user provided with the SqlViewerDialog, then loads the instances in a background process.
void	setInstancesFromFile(AbstractFileLoader loader)	Loads results from a set of instances retrieved with the supplied loader.
void	setInstancesFromFileQ()	Queries the user for a file to load instances from, then loads the instances in a background process.
void	setInstancesFromURL(URL u)	Loads instances from a URL.
void	setInstancesFromURLQ()	Queries the user for a URL to load instances from, then loads the instances in a background process.
void	setLog(Logger newLog)	Sets the Logger to receive informational messages
void	settingsChanged()	Called when the user alters settings.
void	undo()	Reverts to the last backed up version of the dataset.

Methods inherited from class weka.gui.AbstractPerspective

getMainApplication, getPerspectiveIcon, getPerspectiveID, getPerspectiveTipText, getPerspectiveTitle, okToBeActive, setLoaded, setMainApplication, terminate, toString

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, setUI, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintImmediately, paintImmediately, print, printAll, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, contains, createImage, createImage, createVolatileImage, createVolatileImage, dispatchEvent, enable, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

PreprocessPanel

public PreprocessPanel()

Creates the instances panel with no initial instances.

Method Details

acceptsInstances

public boolean acceptsInstances()

We can accept instances

Specified by:

acceptsInstances in interface Perspective

Overrides:

acceptsInstances in class AbstractPerspective

Returns:

true

instantiationComplete

public void instantiationComplete()

We've been instantiated and now have access to the main application and PerspectiveManager

Specified by:

instantiationComplete in interface Perspective

Overrides:

instantiationComplete in class AbstractPerspective

setLog

public void setLog(Logger newLog)

Sets the Logger to receive informational messages

Specified by:

setLog in interface Explorer.LogHandler

Specified by:

setLog in interface Perspective

Overrides:

setLog in class AbstractPerspective

Parameters:

newLog - the Logger that will now get info messages

requiresLog

public boolean requiresLog()

Description copied from class: AbstractPerspective

Whether this perspective requires a graphical log to write to

Specified by:

requiresLog in interface Perspective

Overrides:

requiresLog in class AbstractPerspective

Returns:

true if a log is needed by this perspective

setInstances

public void setInstances(Instances inst)

Tells the panel to use a new base set of instances.

Specified by:

setInstances in interface Explorer.ExplorerPanel

Specified by:

setInstances in interface Perspective

Overrides:

setInstances in class AbstractPerspective

Parameters:

inst - a set of Instances

getInstances

public Instances getInstances()

Gets the working set of instances.

Returns:

the working instances

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener l)

Adds a PropertyChangeListener who will be notified of value changes.

Overrides:

addPropertyChangeListener in class Container

Parameters:

l - a value of type 'PropertyChangeListener'

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener l)

Removes a PropertyChangeListener.

Overrides:

removePropertyChangeListener in class Component

Parameters:

l - a value of type 'PropertyChangeListener'

saveWorkingInstancesToFileQ

public void saveWorkingInstancesToFileQ()

Queries the user for a file to save instances as, then saves the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

saveInstancesToFile

public void saveInstancesToFile(AbstractFileSaver saver,
 Instances inst)

saves the data with the specified saver

Parameters:

saver - the saver to use for storing the data

inst - the data to save

setInstancesFromFileQ

public void setInstancesFromFileQ()

Queries the user for a file to load instances from, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

setInstancesFromDBQ

public void setInstancesFromDBQ(String url,
 String user,
 String pw,
 String query)

Loads (non-sparse) instances from an SQL query the user provided with the SqlViewerDialog, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

Parameters:

url - the database URL

user - the user to connect as

pw - the password of the user

query - the query for retrieving instances from

setInstancesFromDBQ

public void setInstancesFromDBQ(String url,
 String user,
 String pw,
 String query,
 boolean sparse)

Loads instances from an SQL query the user provided with the SqlViewerDialog, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

Parameters:

url - the database URL

user - the user to connect as

pw - the password of the user

query - the query for retrieving instances from

sparse - whether to create sparse or non-sparse instances

setInstancesFromURLQ

public void setInstancesFromURLQ()

Queries the user for a URL to load instances from, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

generateInstances

public void generateInstances()

sets Instances generated via DataGenerators (pops up a Dialog)

setInstancesFromFile

public void setInstancesFromFile(AbstractFileLoader loader)

Loads results from a set of instances retrieved with the supplied loader. This is started in the IO thread, and a dialog is popped up if there's a problem.

Parameters:

loader - the loader to use

setInstancesFromDB

public void setInstancesFromDB(InstanceQuery iq)

Loads instances from a database

Parameters:

iq - the InstanceQuery object to load from (this is assumed to have been already connected to a valid database).

setInstancesFromURL

public void setInstancesFromURL(URL u)

Loads instances from a URL.

Parameters:

u - the URL to load from.

addUndoPoint

public void addUndoPoint()
                  throws Exception

Backs up the current state of the dataset, so the changes can be undone.

Throws:

Exception - if an error occurs

undo

public void undo()

Reverts to the last backed up version of the dataset.

edit

public void edit()

edits the current instances object in the viewer

setExplorer

public void setExplorer(Explorer parent)

Sets the Explorer to use as parent frame (used for sending notifications about changes in the data)

Specified by:

setExplorer in interface Explorer.ExplorerPanel

Parameters:

parent - the parent frame

getExplorer

public Explorer getExplorer()

returns the parent Explorer frame

Specified by:

getExplorer in interface Explorer.ExplorerPanel

Returns:

the parent

capabilitiesFilterChanged

public void capabilitiesFilterChanged(Explorer.CapabilitiesFilterChangeEvent e)

method gets called in case of a change event

Specified by:

capabilitiesFilterChanged in interface Explorer.CapabilitiesFilterChangeListener

Parameters:

e - the associated change event

getTabTitle

public String getTabTitle()

Returns the title for the tab in the Explorer

Specified by:

getTabTitle in interface Explorer.ExplorerPanel

Returns:

the title of this tab

getTabTitleToolTip

public String getTabTitleToolTip()

Returns the tooltip for the tab in the Explorer

Specified by:

getTabTitleToolTip in interface Explorer.ExplorerPanel

Returns:

the tooltip of this tab

getDefaultSettings

public Defaults getDefaultSettings()

Description copied from class: AbstractPerspective

Get the default settings for this perspective (or null if there are none)

Specified by:

getDefaultSettings in interface Perspective

Overrides:

getDefaultSettings in class AbstractPerspective

Returns:

the default settings for this perspective, or null if the perspective does not have any settings

setActive

public void setActive(boolean active)

Description copied from class: AbstractPerspective

Set active status of this perspective. True indicates that this perspective is the visible active perspective in the application

Specified by:

setActive in interface Perspective

Overrides:

setActive in class AbstractPerspective

Parameters:

active - true if this perspective is the active one

settingsChanged

public void settingsChanged()

Description copied from class: AbstractPerspective

Called when the user alters settings. The settings altered by the user are not necessarily ones related to this perspective

Specified by:

settingsChanged in interface Perspective

Overrides:

settingsChanged in class AbstractPerspective

getMenus

public List<JMenu> getMenus()

Description copied from class: AbstractPerspective

Get an ordered list of menus to appear in the main menu bar. Return null for no menus

Specified by:

getMenus in interface Perspective

Overrides:

getMenus in class AbstractPerspective

Returns:

a list of menus to appear in the main menu bar or null for no menus

main

public static void main(String[] args)

Tests out the instance-preprocessing panel from the command line.

Parameters:

args - ignored