GenericObjectEditor

java.lang.Object
- weka.gui.GenericObjectEditor

All Implemented Interfaces:

java.beans.PropertyEditor, CustomPanelSupplier
```
public class GenericObjectEditor
extends java.lang.Object
implements java.beans.PropertyEditor, CustomPanelSupplier
```
A PropertyEditor for objects. It can be used either in a static or a dynamic way.

In the static way (USE_DYNAMIC is false) the objects have been defined as editable in the GenericObjectEditor configuration file, which lists possible values that can be selected from, and themselves configured. The configuration file is called "GenericObjectEditor.props" and may live in either the location given by "user.home" or the current directory (this last will take precedence), and a default properties file is read from the Weka distribution. For speed, the properties file is read only once when the class is first loaded -- this may need to be changed if we ever end up running in a Java OS ;-).

If it is used in a dynamic way (the UseDynamic property of the GenericPropertiesCreator props file is set to true) then the classes to list are discovered by the GenericPropertiesCreator class (it checks the complete classpath).

Version:

$Revision: 15236 $

Author:

Len Trigg (trigg@cs.waikato.ac.nz), Xin Xu (xx5@cs.waikato.ac.nz), Richard Kirkby (rkirkby@cs.waikato.ac.nz), FracPete (fracpete at waikato dot ac dot nz)

See Also:

GenericPropertiesCreator, GenericPropertiesCreator.useDynamic(), GenericPropertiesCreator.CREATOR_FILE, ClassDiscovery

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`class`	`GenericObjectEditor.CapabilitiesFilterDialog` A dialog for selecting Capabilities to look for in the GOE tree.
`class`	`GenericObjectEditor.GOEPanel` Handles the GUI side of editing values.
`class`	`GenericObjectEditor.GOETreeNode` A specialized TreeNode for supporting filtering via Capabilities.
`class`	`GenericObjectEditor.JTreePopupMenu` Creates a popup menu containing a tree that is aware of the screen dimensions.

Field Summary

Fields
Modifier and Type Field and Description

static java.lang.String GUIEDITORS_PROPERTY_FILE
the properties files containing the class/editor mappings.

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`GUIEDITORS_PROPERTY_FILE` the properties files containing the class/editor mappings.

Constructor Summary

Constructors
Constructor and Description
`GenericObjectEditor()` Default constructor.
`GenericObjectEditor(boolean canChangeClassInDialog)` Constructor that allows specifying whether it is possible to change the class within the editor dialog.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addPropertyChangeListener(java.beans.PropertyChangeListener l)` Adds a PropertyChangeListener who will be notified of value changes.
`static void`	`determineClasses()`
`java.lang.String`	`getAsText()` Returns null as we don't support getting/setting values as text.
`java.lang.Object`	`getBackup()` Returns the backup object (may be null if there is no backup.
`boolean`	`getCanChangeClassInDialog()` Returns whether the user can change the class in the dialog.
`Capabilities`	`getCapabilitiesFilter()` Returns the current Capabilities filter, can be null.
`javax.swing.JPopupMenu`	`getChooseClassPopupMenu()` Returns a popup menu that allows the user to change the class of object.
`java.awt.Component`	`getCustomEditor()` Returns the array editing component.
`javax.swing.JPanel`	`getCustomPanel()` Gets the custom panel used for editing the object.
`GenericObjectEditorHistory`	`getHistory()` Returns the history of the used setups.
`java.lang.String`	`getJavaInitializationString()` Supposedly returns an initialization string to create a Object identical to the current one, including it's state, but this doesn't appear possible given that the initialization string isn't supposed to contain multiple statements.
`boolean`	`getShowGlobalInfoToolTips()`
`java.lang.String[]`	`getTags()` Returns null as we don't support getting values as tags.
`java.lang.Object`	`getValue()` Gets the current, configured object.
`boolean`	`isPaintable()` Returns true to indicate that we can paint a representation of the Object.
`static void`	`main(java.lang.String[] args)` Tests out the Object editor from the command line.
`static java.lang.Object`	`makeCopy(java.lang.Object source)` Makes a copy of an object using serialization if the given object is not an option handler.
`void`	`paintValue(java.awt.Graphics gfx, java.awt.Rectangle box)` Paints a representation of the current Object.
`static void`	`registerEditor(java.lang.String name, java.lang.String value)`
`static void`	`registerEditors()` registers all the editors in Weka.
`void`	`removeCapabilitiesFilter()` Removes the current Capabilities filter.
`void`	`removePropertyChangeListener(java.beans.PropertyChangeListener l)` Removes a PropertyChangeListener.
`void`	`setAsText(java.lang.String text)` Returns null as we don't support getting/setting values as text.
`void`	`setCanChangeClassInDialog(boolean value)` Sets whether the user can change the class in the dialog.
`void`	`setCapabilitiesFilter(Capabilities value)` Sets the capabilities to use for filtering.
`void`	`setClassType(java.lang.Class<?> type)` Sets the class of values that can be edited.
`void`	`setDefaultValue()` Sets the current object to be the default, taken as the first item in the chooser.
`void`	`setEnabled(boolean newVal)` Sets whether the editor is "enabled", meaning that the current values will be painted.
`static void`	`setShowGlobalInfoToolTips(boolean show)`
`void`	`setValue(java.lang.Object o)` Sets the current Object.
`static java.util.Hashtable<java.lang.String,java.lang.String>`	`sortClassesByRoot(java.lang.String classes)` parses the given string of classes separated by ", " and returns the a hashtable with as many entries as there are different root elements in the class names (the key is the root element).
`boolean`	`supportsCustomEditor()` Returns true because we do support a custom editor.
`boolean`	`wasCancelPressed()` True if the cancel button was used to close the editor.

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

- Field Detail
  - GUIEDITORS_PROPERTY_FILE
```
public static final java.lang.String GUIEDITORS_PROPERTY_FILE
```
    the properties files containing the class/editor mappings.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - GenericObjectEditor
```
public GenericObjectEditor()
```
    Default constructor.
  - GenericObjectEditor
```
public GenericObjectEditor(boolean canChangeClassInDialog)
```
    Constructor that allows specifying whether it is possible to change the class within the editor dialog.
    
    Parameters:
    
    canChangeClassInDialog - whether the user can change the class
- Method Detail
  - setShowGlobalInfoToolTips
```
public static void setShowGlobalInfoToolTips(boolean show)
```
  - getShowGlobalInfoToolTips
```
public boolean getShowGlobalInfoToolTips()
```
  - determineClasses
```
public static void determineClasses()
```
  - registerEditors
```
public static void registerEditors()
```
    registers all the editors in Weka.
  - registerEditor
```
public static void registerEditor(java.lang.String name,
                                  java.lang.String value)
```
  - setCanChangeClassInDialog
```
public void setCanChangeClassInDialog(boolean value)
```
    Sets whether the user can change the class in the dialog.
    
    Parameters:
    
    value - if true then the user can change the class
  - getCanChangeClassInDialog
```
public boolean getCanChangeClassInDialog()
```
    Returns whether the user can change the class in the dialog.
    
    Returns:
    
    true if the user can change the class
  - getBackup
```
public java.lang.Object getBackup()
```
    Returns the backup object (may be null if there is no backup.
    
    Returns:
    
    the backup object
  - sortClassesByRoot
```
public static java.util.Hashtable<java.lang.String,java.lang.String> sortClassesByRoot(java.lang.String classes)
```
    parses the given string of classes separated by ", " and returns the a hashtable with as many entries as there are different root elements in the class names (the key is the root element). E.g. if there's only "weka." as the prefix for all classes the a hashtable of size 1 is returned. if NULL is the input, then NULL is also returned.
    
    Parameters:
    
    classes - the classnames to work on
    
    Returns:
    
    for each distinct root element in the classnames, one entry in the hashtable (with the root element as key)
  - setEnabled
```
public void setEnabled(boolean newVal)
```
    Sets whether the editor is "enabled", meaning that the current values will be painted.
    
    Parameters:
    
    newVal - a value of type 'boolean'
  - setClassType
```
public void setClassType(java.lang.Class<?> type)
```
    Sets the class of values that can be edited.
    
    Parameters:
    
    type - a value of type 'Class'
  - setDefaultValue
```
public void setDefaultValue()
```
    Sets the current object to be the default, taken as the first item in the chooser.
  - wasCancelPressed
```
public boolean wasCancelPressed()
```
    True if the cancel button was used to close the editor.
    
    Returns:
    
    true if the cancel button was pressed the last time the editor was closed
  - setValue
```
public void setValue(java.lang.Object o)
```
    Sets the current Object. If the Object is in the Object chooser, this becomes the selected item (and added to the chooser if necessary). Makes a completely independent copy of the incoming object for further use. If the incoming object is not an option handler, this is done by creating a deep copy using serialization.
    
    Specified by:
    
    setValue in interface java.beans.PropertyEditor
    
    Parameters:
    
    o - the object to be edited
  - getValue
```
public java.lang.Object getValue()
```
    Gets the current, configured object. Returns a completely independent copy of the configured object for further use.
    
    Specified by:
    
    getValue in interface java.beans.PropertyEditor
    
    Returns:
    
    the current, configured object
  - getJavaInitializationString
```
public java.lang.String getJavaInitializationString()
```
    Supposedly returns an initialization string to create a Object identical to the current one, including it's state, but this doesn't appear possible given that the initialization string isn't supposed to contain multiple statements.
    
    Specified by:
    
    getJavaInitializationString in interface java.beans.PropertyEditor
    
    Returns:
    
    the java source code initialisation string
  - isPaintable
```
public boolean isPaintable()
```
    Returns true to indicate that we can paint a representation of the Object.
    
    Specified by:
    
    isPaintable in interface java.beans.PropertyEditor
    
    Returns:
    
    true
  - paintValue
```
public void paintValue(java.awt.Graphics gfx,
                       java.awt.Rectangle box)
```
    Paints a representation of the current Object.
    
    Specified by:
    
    paintValue in interface java.beans.PropertyEditor
    
    Parameters:
    
    gfx - the graphics context to use
    
    box - the area we are allowed to paint into
  - getAsText
```
public java.lang.String getAsText()
```
    Returns null as we don't support getting/setting values as text.
    
    Specified by:
    
    getAsText in interface java.beans.PropertyEditor
    
    Returns:
    
    null
  - setAsText
```
public void setAsText(java.lang.String text)
```
    Returns null as we don't support getting/setting values as text.
    
    Specified by:
    
    setAsText in interface java.beans.PropertyEditor
    
    Parameters:
    
    text - the text value
    
    Throws:
    
    java.lang.IllegalArgumentException - as we don't support getting/setting values as text.
  - getTags
```
public java.lang.String[] getTags()
```
    Returns null as we don't support getting values as tags.
    
    Specified by:
    
    getTags in interface java.beans.PropertyEditor
    
    Returns:
    
    null
  - supportsCustomEditor
```
public boolean supportsCustomEditor()
```
    Returns true because we do support a custom editor.
    
    Specified by:
    
    supportsCustomEditor in interface java.beans.PropertyEditor
    
    Returns:
    
    true
  - getCustomEditor
```
public java.awt.Component getCustomEditor()
```
    Returns the array editing component.
    
    Specified by:
    
    getCustomEditor in interface java.beans.PropertyEditor
    
    Returns:
    
    a value of type 'java.awt.Component'
  - addPropertyChangeListener
```
public void addPropertyChangeListener(java.beans.PropertyChangeListener l)
```
    Adds a PropertyChangeListener who will be notified of value changes.
    
    Specified by:
    
    addPropertyChangeListener in interface java.beans.PropertyEditor
    
    Parameters:
    
    l - a value of type 'PropertyChangeListener'
  - removePropertyChangeListener
```
public void removePropertyChangeListener(java.beans.PropertyChangeListener l)
```
    Removes a PropertyChangeListener.
    
    Specified by:
    
    removePropertyChangeListener in interface java.beans.PropertyEditor
    
    Parameters:
    
    l - a value of type 'PropertyChangeListener'
  - getCustomPanel
```
public javax.swing.JPanel getCustomPanel()
```
    Gets the custom panel used for editing the object.
    
    Specified by:
    
    getCustomPanel in interface CustomPanelSupplier
    
    Returns:
    
    the panel
  - getChooseClassPopupMenu
```
public javax.swing.JPopupMenu getChooseClassPopupMenu()
```
    Returns a popup menu that allows the user to change the class of object.
    
    Returns:
    
    a JPopupMenu that when shown will let the user choose the class
  - setCapabilitiesFilter
```
public void setCapabilitiesFilter(Capabilities value)
```
    Sets the capabilities to use for filtering.
    
    Parameters:
    
    value - the object to get the filter capabilities from
  - getCapabilitiesFilter
```
public Capabilities getCapabilitiesFilter()
```
    Returns the current Capabilities filter, can be null.
    
    Returns:
    
    the current Capabiliities used for filtering
  - removeCapabilitiesFilter
```
public void removeCapabilitiesFilter()
```
    Removes the current Capabilities filter.
  - makeCopy
```
public static java.lang.Object makeCopy(java.lang.Object source)
                                 throws java.lang.Exception
```
    Makes a copy of an object using serialization if the given object is not an option handler. Otherwise, it will use the makeCopy() method in OptionHandler.
    
    Parameters:
    
    source - the object to copy
    
    Returns:
    
    a copy of the source object
    
    Throws:
    
    java.lang.Exception - if the copy fails
  - getHistory
```
public GenericObjectEditorHistory getHistory()
```
    Returns the history of the used setups.
    
    Returns:
    
    the history
  - main
```
public static void main(java.lang.String[] args)
```
    Tests out the Object editor from the command line.
    
    Parameters:
    
    args - may contain the class name of a Object to edit

Class GenericObjectEditor

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GUIEDITORS_PROPERTY_FILE

Constructor Detail

GenericObjectEditor

GenericObjectEditor

Method Detail

setShowGlobalInfoToolTips

getShowGlobalInfoToolTips

determineClasses

registerEditors

registerEditor

setCanChangeClassInDialog

getCanChangeClassInDialog

getBackup

sortClassesByRoot

setEnabled

setClassType

setDefaultValue

wasCancelPressed

setValue

getValue

getJavaInitializationString

isPaintable

paintValue

getAsText

setAsText

getTags

supportsCustomEditor

getCustomEditor

addPropertyChangeListener

removePropertyChangeListener

getCustomPanel

getChooseClassPopupMenu

setCapabilitiesFilter

getCapabilitiesFilter

removeCapabilitiesFilter

makeCopy

getHistory

main