How to use

getClassesFromProperties

method

in

weka.gui.GenericObjectEditor

/**
 * Sets the class of values that can be edited.
 * 
 * @param type a value of type 'Class'
 */
public void setClassType(Class<?> type) {
 m_ClassType = type;
 m_ObjectNames = getClassesFromProperties();
}

/**
 * Sets the class of values that can be edited.
 * 
 * @param type a value of type 'Class'
 */
public void setClassType(Class<?> type) {
 m_ClassType = type;
 m_ObjectNames = getClassesFromProperties();
}

/**
 * Called when the class of object being edited changes.
 *
 * @return the hashtable containing the HierarchyPropertyParsers for the root
 *         elements
 */
protected Hashtable<String, HierarchyPropertyParser> getClassesFromProperties() {
  String className = m_ClassType.getName();
  if (className.startsWith("meka.")) {
    Hashtable<String, HierarchyPropertyParser> hpps = new Hashtable<String, HierarchyPropertyParser>();
    Hashtable<String,String> typeOptions = sortClassesByRoot(EDITOR_PROPERTIES.getProperty(className));
    try {
      Enumeration<String> enm = typeOptions.keys();
      while (enm.hasMoreElements()) {
        String root = enm.nextElement();
        String typeOption = typeOptions.get(root);
        HierarchyPropertyParser hpp = new HierarchyPropertyParser();
        hpp.build(typeOption, ", ");
        hpps.put(root, hpp);
      }
    } catch (Exception ex) {
      Logger.log(weka.core.logging.Logger.Level.WARNING, "Invalid property: "
          + typeOptions);
    }
    if (DEBUG)
      System.out.println("Meka classes: " + hpps);
    return hpps;
  }
  return super.getClassesFromProperties();
}

/**
 * Called when the class of object being edited changes.
 *
 * @return the hashtable containing the HierarchyPropertyParsers for the root
 *         elements
 */
protected Hashtable<String, HierarchyPropertyParser> getClassesFromProperties() {
  String className = m_ClassType.getName();
  if (className.startsWith("meka.")) {
    Hashtable<String, HierarchyPropertyParser> hpps = new Hashtable<String, HierarchyPropertyParser>();
    Hashtable<String,String> typeOptions = sortClassesByRoot(EDITOR_PROPERTIES.getProperty(className));
    try {
      Enumeration<String> enm = typeOptions.keys();
      while (enm.hasMoreElements()) {
        String root = enm.nextElement();
        String typeOption = typeOptions.get(root);
        HierarchyPropertyParser hpp = new HierarchyPropertyParser();
        hpp.build(typeOption, ", ");
        hpps.put(root, hpp);
      }
    } catch (Exception ex) {
      Logger.log(weka.core.logging.Logger.Level.WARNING, "Invalid property: "
          + typeOptions);
    }
    if (DEBUG)
      System.out.println("Meka classes: " + hpps);
    return hpps;
  }
  return super.getClassesFromProperties();
}

/**
 * Updates the list of selectable object names, adding any new names to the
 * list.
 */
protected void updateObjectNames() {
 if (m_ObjectNames == null) {
  m_ObjectNames = getClassesFromProperties();
 }
 if (m_Object != null) {
  String className = m_Object.getClass().getName();
  String root = getRootFromClass(className,
   new HierarchyPropertyParser().getSeperator());
  HierarchyPropertyParser hpp = m_ObjectNames.get(root);
  if (hpp != null) {
   if (!hpp.contains(className)) {
    hpp.add(className);
   }
  }
 }
}

/**
 * Updates the list of selectable object names, adding any new names to the
 * list.
 */
protected void updateObjectNames() {
 if (m_ObjectNames == null) {
  m_ObjectNames = getClassesFromProperties();
 }
 if (m_Object != null) {
  String className = m_Object.getClass().getName();
  String root = getRootFromClass(className,
   new HierarchyPropertyParser().getSeperator());
  HierarchyPropertyParser hpp = m_ObjectNames.get(root);
  if (hpp != null) {
   if (!hpp.contains(className)) {
    hpp.add(className);
   }
  }
 }
}

m_ObjectNames = getClassesFromProperties();
if (m_Object != null) {
 updateObjectNames();

m_ObjectNames = getClassesFromProperties();
if (m_Object != null) {
 updateObjectNames();

Hashtable<String, HierarchyPropertyParser> hpps = getClassesFromProperties();
HierarchyPropertyParser hpp = null;
Enumeration<HierarchyPropertyParser> enm = hpps.elements();

Hashtable<String, HierarchyPropertyParser> hpps = getClassesFromProperties();
HierarchyPropertyParser hpp = null;
Enumeration<HierarchyPropertyParser> enm = hpps.elements();

 @Override
 public void actionPerformed(ActionEvent e) {
  m_ChildPropertySheet.closingCancel();
  m_CancelWasPressed = true;
  if (m_Backup != null) {
   m_Object = copyObject(m_Backup);
   // To fire property change
   m_Support.firePropertyChange("", null, null);
   m_ObjectNames = getClassesFromProperties();
   updateObjectNames();
   updateChildPropertySheet();
  }
  if ((getTopLevelAncestor() != null)
   && (getTopLevelAncestor() instanceof Window)) {
   Window w = (Window) getTopLevelAncestor();
   w.dispose();
  }
 }
});

 @Override
 public void actionPerformed(ActionEvent e) {
  m_ChildPropertySheet.closingCancel();
  m_CancelWasPressed = true;
  if (m_Backup != null) {
   m_Object = copyObject(m_Backup);
   // To fire property change
   m_Support.firePropertyChange("", null, null);
   m_ObjectNames = getClassesFromProperties();
   updateObjectNames();
   updateChildPropertySheet();
  }
  if ((getTopLevelAncestor() != null)
   && (getTopLevelAncestor() instanceof Window)) {
   Window w = (Window) getTopLevelAncestor();
   w.dispose();
  }
 }
});