Package weka.gui.beans

Class MetaBean

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JPanel

weka.gui.beans.MetaBean

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, BeanCommon, EventConstraints, Startable, UserRequestAcceptor, Visible

public class MetaBean
extends JPanel
implements BeanCommon, Visible, EventConstraints, Serializable, UserRequestAcceptor, Startable

A meta bean that encapsulates several other regular beans, useful for grouping large KnowledgeFlows.

Version:

$Revision: 10221 $

Author:

Mark Hall (mhall at cs dot waikato dot ac dot nz)

See Also:

• Serialized Form

Nested Class Summary

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
MetaBean()

Method Summary

Modifier and Type	Method	Description
void	addPropertyChangeListenersSubFlow(PropertyChangeListener pcl)
boolean	canAcceptConnection(Class<?> listenerClass)	Checks to see if any of the inputs to this group implements the supplied listener class
boolean	connectionAllowed(EventSetDescriptor esd)	Returns true if, at this time, the object will accept a connection with respect to the supplied EventSetDescriptor
boolean	connectionAllowed(String eventName)	Returns true if, at this time, the object will accept a connection via the named event
void	connectionNotification(String eventName, Object source)	Notify this object that it has been registered as a listener with a source with respect to the named event.
void	disconnectionNotification(String eventName, Object source)	Notify this object that it has been deregistered as a listener with a source with respect to the supplied event name.
Enumeration<String>	enumerateRequests()	Return an enumeration of requests that can be made by the user
boolean	eventGeneratable(EventSetDescriptor esd)	Returns true, if at the current time, the event described by the supplied event descriptor could be generated.
boolean	eventGeneratable(String eventName)	Returns true, if at the current time, the named event could be generated.
Vector<BeanConnection>	getAssociatedConnections()
Vector<BeanInfo>	getBeanInfoInputs()
Vector<BeanInfo>	getBeanInfoOutputs()
Vector<BeanInfo>	getBeanInfoSubFlow()
Vector<Object>	getBeansInInputs()	Return all the beans in the inputs
Vector<Object>	getBeansInOutputs()	Return all the beans in the outputs
Vector<Object>	getBeansInSubFlow()	Return all the beans in the sub flow
String	getCustomName()	Get the custom (descriptive) name for this bean (if one has been set)
Vector<Object>	getInputs()
Vector<Point>	getOriginalCoords()	returns the vector containing the original coordinates (instances of class Point) for the inputs
Vector<Object>	getOutputs()
String	getStartMessage()	Gets a string that describes the start action.
Vector<Object>	getSubFlow()
Vector<BeanInstance>	getSuitableTargets(EventSetDescriptor esd)	Return a list of input beans capable of receiving the supplied event
BeanVisual	getVisual()	Gets the visual appearance of this wrapper bean
boolean	inputsContains(BeanInstance toCheck)
boolean	isBusy()	Returns true if.
boolean	outputsContains(BeanInstance toCheck)
void	performRequest(String request)	Perform a particular request
void	removePropertyChangeListenersSubFlow(PropertyChangeListener pcl)
void	restoreBeans(int x, int y)
void	setAssociatedConnections(Vector<BeanConnection> ac)
void	setCustomName(String name)	Set a custom (descriptive) name for this bean
void	setInputs(Vector<Object> inputs)
void	setLog(Logger logger)	Set a logger
void	setOriginalCoords(Vector<Point> value)	sets the vector containing the original coordinates (instances of class Point) for the inputs
void	setOutputs(Vector<Object> outputs)
void	setSubFlow(Vector<Object> sub)
void	setSubFlowPreview(ImageIcon sfp)
void	setVisual(BeanVisual newVisual)	Sets the visual appearance of this wrapper bean
void	shiftBeans(BeanInstance toShiftTo, boolean save)	Move coords of all inputs and outputs of this meta bean to the coords of the supplied BeanInstance.
void	start()	Start the flow running
void	stop()	Stop all encapsulated beans
boolean	subFlowContains(BeanInstance toCheck)
void	useDefaultVisual()	Use the default visual appearance for this bean

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, 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, 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, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Details

MetaBean

public MetaBean()

Method Details

setCustomName

public void setCustomName(String name)

Set a custom (descriptive) name for this bean

Specified by:

setCustomName in interface BeanCommon

Parameters:

name - the name to use

getCustomName

public String getCustomName()

Get the custom (descriptive) name for this bean (if one has been set)

Specified by:

getCustomName in interface BeanCommon

Returns:

the custom name (or the default name)

setAssociatedConnections

public void setAssociatedConnections(Vector<BeanConnection> ac)

getAssociatedConnections

public Vector<BeanConnection> getAssociatedConnections()

setSubFlow

public void setSubFlow(Vector<Object> sub)

getSubFlow

public Vector<Object> getSubFlow()

setInputs

public void setInputs(Vector<Object> inputs)

getInputs

public Vector<Object> getInputs()

setOutputs

public void setOutputs(Vector<Object> outputs)

getOutputs

public Vector<Object> getOutputs()

subFlowContains

public boolean subFlowContains(BeanInstance toCheck)

inputsContains

public boolean inputsContains(BeanInstance toCheck)

outputsContains

public boolean outputsContains(BeanInstance toCheck)

getBeansInSubFlow

public Vector<Object> getBeansInSubFlow()

Return all the beans in the sub flow

Returns:

a Vector of all the beans in the sub flow

getBeansInInputs

public Vector<Object> getBeansInInputs()

Return all the beans in the inputs

Returns:

a Vector of all the beans in the inputs

getBeansInOutputs

public Vector<Object> getBeansInOutputs()

Return all the beans in the outputs

Returns:

a Vector of all the beans in the outputs

getBeanInfoSubFlow

public Vector<BeanInfo> getBeanInfoSubFlow()

getBeanInfoInputs

public Vector<BeanInfo> getBeanInfoInputs()

getBeanInfoOutputs

public Vector<BeanInfo> getBeanInfoOutputs()

getOriginalCoords

public Vector<Point> getOriginalCoords()

returns the vector containing the original coordinates (instances of class Point) for the inputs

Returns:

the containing the coord Points of the original inputs

setOriginalCoords

public void setOriginalCoords(Vector<Point> value)

sets the vector containing the original coordinates (instances of class Point) for the inputs

Parameters:

value - the vector containing the points of the coords of the original inputs

shiftBeans

public void shiftBeans(BeanInstance toShiftTo,
 boolean save)

Move coords of all inputs and outputs of this meta bean to the coords of the supplied BeanInstance. Typically the supplied BeanInstance is the BeanInstance that encapsulates this meta bean; the result in this case is that all inputs and outputs are shifted so that their coords coincide with the meta bean and all connections to them appear (visually) to go to/from the meta bean.

Parameters:

toShiftTo - the BeanInstance whos coordinates will be used.

save - true if coordinates are to be saved.

restoreBeans

public void restoreBeans(int x,
 int y)

eventGeneratable

public boolean eventGeneratable(EventSetDescriptor esd)

Returns true, if at the current time, the event described by the supplied event descriptor could be generated.

Parameters:

esd - an EventSetDescriptor value

Returns:

a boolean value

eventGeneratable

public boolean eventGeneratable(String eventName)

Returns true, if at the current time, the named event could be generated. Assumes that the supplied event name is an event that could be generated by this bean

Specified by:

eventGeneratable in interface EventConstraints

Parameters:

eventName - the name of the event in question

Returns:

true if the named event could be generated at this point in time

connectionAllowed

public boolean connectionAllowed(EventSetDescriptor esd)

Returns true if, at this time, the object will accept a connection with respect to the supplied EventSetDescriptor

Specified by:

connectionAllowed in interface BeanCommon

Parameters:

esd - the EventSetDescriptor

Returns:

true if the object will accept a connection

connectionAllowed

public boolean connectionAllowed(String eventName)

Description copied from interface: BeanCommon

Returns true if, at this time, the object will accept a connection via the named event

Specified by:

connectionAllowed in interface BeanCommon

Parameters:

eventName - the name of the event

Returns:

true if the object will accept a connection

connectionNotification

public void connectionNotification(String eventName,
 Object source)

Notify this object that it has been registered as a listener with a source with respect to the named event. This is just a dummy method in this class to satisfy the interface. Specific code in BeanConnection takes care of this method for MetaBeans

Specified by:

connectionNotification in interface BeanCommon

Parameters:

eventName - the event

source - the source with which this object has been registered as a listener

disconnectionNotification

public void disconnectionNotification(String eventName,
 Object source)

Notify this object that it has been deregistered as a listener with a source with respect to the supplied event name. This is just a dummy method in this class to satisfy the interface. Specific code in BeanConnection takes care of this method for MetaBeans

Specified by:

disconnectionNotification in interface BeanCommon

Parameters:

eventName - the event

source - the source with which this object has been registered as a listener

stop

public void stop()

Stop all encapsulated beans

Specified by:

stop in interface BeanCommon

isBusy

public boolean isBusy()

Returns true if. at this time, the bean is busy with some (i.e. perhaps a worker thread is performing some calculation).

Specified by:

isBusy in interface BeanCommon

Returns:

true if the bean is busy.

setVisual

public void setVisual(BeanVisual newVisual)

Sets the visual appearance of this wrapper bean

Specified by:

setVisual in interface Visible

Parameters:

newVisual - a BeanVisual value

getVisual

public BeanVisual getVisual()

Gets the visual appearance of this wrapper bean

Specified by:

getVisual in interface Visible

Returns:

a BeanVisual value

useDefaultVisual

public void useDefaultVisual()

Use the default visual appearance for this bean

Specified by:

useDefaultVisual in interface Visible

getStartMessage

public String getStartMessage()

Description copied from interface: Startable

Gets a string that describes the start action. The KnowledgeFlow uses this in the popup contextual menu for the component. The string can be proceeded by a '$' character to indicate that the component can't be started at present.

Specified by:

getStartMessage in interface Startable

Returns:

a string describing the start action.

start

public void start()

Description copied from interface: Startable

Start the flow running

Specified by:

start in interface Startable

enumerateRequests

public Enumeration<String> enumerateRequests()

Return an enumeration of requests that can be made by the user

Specified by:

enumerateRequests in interface UserRequestAcceptor

Returns:

an Enumeration value

setSubFlowPreview

public void setSubFlowPreview(ImageIcon sfp)

performRequest

public void performRequest(String request)

Perform a particular request

Specified by:

performRequest in interface UserRequestAcceptor

Parameters:

request - the request to perform

Throws:

IllegalArgumentException - if an error occurs

setLog

public void setLog(Logger logger)

Set a logger

Specified by:

setLog in interface BeanCommon

Parameters:

logger - a Logger value

removePropertyChangeListenersSubFlow

public void removePropertyChangeListenersSubFlow(PropertyChangeListener pcl)

addPropertyChangeListenersSubFlow

public void addPropertyChangeListenersSubFlow(PropertyChangeListener pcl)

canAcceptConnection

public boolean canAcceptConnection(Class<?> listenerClass)

Checks to see if any of the inputs to this group implements the supplied listener class

Parameters:

listenerClass - the listener to check for

getSuitableTargets

public Vector<BeanInstance> getSuitableTargets(EventSetDescriptor esd)

Return a list of input beans capable of receiving the supplied event

Parameters:

esd - the event in question

Returns:

a vector of beans capable of handling the event