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## 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:
  java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, BeanCommon, EventConstraints, UserRequestAcceptor, Visible

    public class MetaBean

extends javax.swing.JPanel
implements BeanCommon, Visible, EventConstraints, java.io.Serializable, UserRequestAcceptor

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

Version:
  $Revision: 1.4.2.4 $
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
`javax.swing.JComponent.AccessibleJComponent`

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
`MetaBean()`

Method Summary
`void` | `addPropertyChangeListenersSubFlow(java.beans.PropertyChangeListener pcl)`
`boolean` | `canAcceptConnection(java.lang.Class listenerClass)` Checks to see if any of the inputs to this group implements the supplied listener class
`boolean` | `connectionAllowed(java.beans.EventSetDescriptor esd)` Returns true if, at this time, the object will accept a connection with respect to the supplied EventSetDescriptor
`boolean` | `connectionAllowed(java.lang.String eventName)` Returns true if, at this time, the object will accept a connection via the named event
`void` | `connectionNotification(java.lang.String eventName, java.lang.Object source)` Notify this object that it has been registered as a listener with a source with respect to the named event.
`void` | `disconnectionNotification(java.lang.String eventName, java.lang.Object source)` Notify this object that it has been deregistered as a listener with a source with respect to the supplied event name.
`java.util.Enumeration` | `enumerateRequests()` Return an enumeration of requests that can be made by the user
`boolean` | `eventGeneratable(java.beans.EventSetDescriptor esd)` Returns true, if at the current time, the event described by the supplied event descriptor could be generated.
`boolean` | `eventGeneratable(java.lang.String eventName)` Returns true, if at the current time, the named event could be generated.
`java.util.Vector` | `getAssociatedConnections()`
`java.util.Vector` | `getBeanInfoInputs()`
`java.util.Vector` | `getBeanInfoOutputs()`
`java.util.Vector` | `getBeanInfoSubFlow()`
`java.util.Vector` | `getBeansInInputs()` Return all the beans in the inputs
`java.util.Vector` | `getBeansInOutputs()` Return all the beans in the outputs
`java.util.Vector` | `getBeansInSubFlow()` Return all the beans in the sub flow
`java.util.Vector` | `getInputs()`
`java.util.Vector` | `getOriginalCoords()` returns the vector containing the original coordinates (instances of class Point) for the inputs
`java.util.Vector` | `getOutputs()`
`java.util.Vector` | `getSubFlow()`
`java.util.Vector` | `getSuitableTargets(java.beans.EventSetDescriptor esd)` Return a list of input beans capable of receiving the supplied event
`BeanVisual` | `getVisual()` Gets the visual appearance of this wrapper bean
`void` | `performRequest(java.lang.String request)` Perform a particular request
`void` | `removePropertyChangeListenersSubFlow(java.beans.PropertyChangeListener pcl)`
`void` | `restoreBeans()`
`void` | `setAssociatedConnections(java.util.Vector ac)`
`void` | `setInputs(java.util.Vector inputs)`
`void` | `setLog(Logger logger)` Set a logger
`void` | `setOriginalCoords(java.util.Vector value)` sets the vector containing the original coordinates (instances of class Point) for the inputs
`void` | `setOutputs(java.util.Vector outputs)`
`void` | `setSubFlow(java.util.Vector sub)`
`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` | `stop()` Stop all encapsulated beans
`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, 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, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, 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, transferFocusBackward, 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, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, 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, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### MetaBean

    public MetaBean()

Method Detail

### setAssociatedConnections

    public void setAssociatedConnections(java.util.Vector ac)

### getAssociatedConnections

    public java.util.Vector getAssociatedConnections()

### setSubFlow

    public void setSubFlow(java.util.Vector sub)

### getSubFlow

    public java.util.Vector getSubFlow()

### setInputs

    public void setInputs(java.util.Vector inputs)

### getInputs

    public java.util.Vector getInputs()

### setOutputs

    public void setOutputs(java.util.Vector outputs)

### getOutputs

    public java.util.Vector getOutputs()

### getBeansInSubFlow

    public java.util.Vector getBeansInSubFlow()

  Return all the beans in the sub flow

  Returns:
    a Vector of all the beans in the sub flow

### getBeansInInputs

    public java.util.Vector getBeansInInputs()

  Return all the beans in the inputs

  Returns:
    a Vector of all the beans in the inputs

### getBeansInOutputs

    public java.util.Vector getBeansInOutputs()

  Return all the beans in the outputs

  Returns:
    a Vector of all the beans in the outputs

### getBeanInfoSubFlow

    public java.util.Vector getBeanInfoSubFlow()

### getBeanInfoInputs

    public java.util.Vector getBeanInfoInputs()

### getBeanInfoOutputs

    public java.util.Vector getBeanInfoOutputs()

### getOriginalCoords

    public java.util.Vector 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(java.util.Vector 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()

### eventGeneratable

    public boolean eventGeneratable(java.beans.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(java.lang.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(java.beans.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(java.lang.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(java.lang.String eventName,
                                       java.lang.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(java.lang.String eventName,
                                          java.lang.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`

### 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`

### enumerateRequests

    public java.util.Enumeration enumerateRequests()

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

  Specified by:
    `enumerateRequests` in interface `UserRequestAcceptor`
  Returns:
    an `Enumeration` value

### performRequest

    public void performRequest(java.lang.String request)

  Perform a particular request

  Specified by:
    `performRequest` in interface `UserRequestAcceptor`
  Parameters:
    `request` - the request to perform
  Throws:
    `java.lang.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(java.beans.PropertyChangeListener pcl)

### addPropertyChangeListenersSubFlow

    public void addPropertyChangeListenersSubFlow(java.beans.PropertyChangeListener pcl)

### canAcceptConnection

    public boolean canAcceptConnection(java.lang.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 java.util.Vector getSuitableTargets(java.beans.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

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