« Return to Thread: PropertyEditorManager.findEditor() and getPropertyEditorClass() disagree?!?!
PropertyEditorManager.findEdit
by Rhizomorph
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I am trying to register a property editor for a particular class type by using the PropertyEditorManager.registerEditor(...) function, but Netbeans doesn't seem to pay attention to it and never uses the editor. I should say two things right off the bat:
The Property Editor that I am trying to use DOES work - I know this for a fact, and I can successfully use this exact same editor class IF I specify it in the BeanInfo file.
The call to registerEditor() in the static block IS getting executed. And when I later call PropertyEditorManager.findEditor(MyEnum.class), it returns a property editor of the correct class.
However, despite the fact that MyEnum is obviously being linked to the correct editor, Netbeans doesn't actually use that editor. Moreover, when I try to ask Netbeans what the property editor is by referring to a particular property via the descriptor, it returns NULL. Here's an example...
Code:
import java.beans.*;
import java.io.Serializable;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import toolbox.swing.editors.EnumPropertyEditor;
public class BrokenBean2 implements Serializable {
public static enum MyEnum {
VALUE1,
VALUE2;
static {
PropertyEditorManager.registerEditor(MyEnum.class, Editor.class);
}
public static class Editor extends EnumPropertyEditor<MyEnum> {
public Editor() {
super(MyEnum.class);
}
}
}
public static final String PROP_EXAMPLE = "example";
private MyEnum example;
private PropertyChangeSupport pcs;
public BrokenBean2() {
pcs = new PropertyChangeSupport(this);
}
public MyEnum getExample() {
return example;
}
public void setExample(MyEnum value) {
MyEnum oldValue = example;
example = value;
pcs.firePropertyChange(PROP_EXAMPLE, oldValue, example);
try {
String summary = "<html>";
PropertyDescriptor property = new PropertyDescriptor("example", BrokenBean2.class);
PropertyEditor editor1 = PropertyEditorManager.findEditor(example.getClass());
PropertyEditor editor2 = PropertyEditorManager.findEditor(property.getPropertyType());
PropertyEditor editor3 = PropertyEditorManager.findEditor(MyEnum.class);
Class clazz = property.getPropertyEditorClass();
property.setPropertyEditorClass(MyEnum.Editor.class);
summary = summary + "editor1: " + (editor1 == null ? "null" : editor1.getClass().getName()) + "<br>";
summary = summary + "editor2: " + (editor2 == null ? "null" : editor2.getClass().getName()) + "<br>";
summary = summary + "editor3: " + (editor3 == null ? "null" : editor3.getClass().getName()) + "<br>";
summary = summary + "clazz: " + (clazz == null ? "null" : clazz.getName()) + "<br>";
summary = summary + "</html>";
JOptionPane.showMessageDialog(null, new JLabel(summary));
} catch (IntrospectionException ex) {
}
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
pcs.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
pcs.removePropertyChangeListener(listener);
}
}
With the above bean, Netbeans uses the default Enum editor, not mine, for the property "example". However, when you change the value of "example", the popup message indicates that "example" is of type MyEnum and that the editor for MyEnum is MyEnum.Editor.... but it doesn't use it?!?!?! Are these methods deprecated and they just forgot to document that, or am I doing something wrong?
My goal is to be able to specify the editor for any class WITHIN THAT CLASS, not in multiple BeanInfo files spread throughout a library.
The Property Editor that I am trying to use DOES work - I know this for a fact, and I can successfully use this exact same editor class IF I specify it in the BeanInfo file.
The call to registerEditor() in the static block IS getting executed. And when I later call PropertyEditorManager.findEditor(MyEnum.class), it returns a property editor of the correct class.
However, despite the fact that MyEnum is obviously being linked to the correct editor, Netbeans doesn't actually use that editor. Moreover, when I try to ask Netbeans what the property editor is by referring to a particular property via the descriptor, it returns NULL. Here's an example...
Code:
import java.beans.*;
import java.io.Serializable;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import toolbox.swing.editors.EnumPropertyEditor;
public class BrokenBean2 implements Serializable {
public static enum MyEnum {
VALUE1,
VALUE2;
static {
PropertyEditorManager.registerEditor(MyEnum.class, Editor.class);
}
public static class Editor extends EnumPropertyEditor<MyEnum> {
public Editor() {
super(MyEnum.class);
}
}
}
public static final String PROP_EXAMPLE = "example";
private MyEnum example;
private PropertyChangeSupport pcs;
public BrokenBean2() {
pcs = new PropertyChangeSupport(this);
}
public MyEnum getExample() {
return example;
}
public void setExample(MyEnum value) {
MyEnum oldValue = example;
example = value;
pcs.firePropertyChange(PROP_EXAMPLE, oldValue, example);
try {
String summary = "<html>";
PropertyDescriptor property = new PropertyDescriptor("example", BrokenBean2.class);
PropertyEditor editor1 = PropertyEditorManager.findEditor(example.getClass());
PropertyEditor editor2 = PropertyEditorManager.findEditor(property.getPropertyType());
PropertyEditor editor3 = PropertyEditorManager.findEditor(MyEnum.class);
Class clazz = property.getPropertyEditorClass();
property.setPropertyEditorClass(MyEnum.Editor.class);
summary = summary + "editor1: " + (editor1 == null ? "null" : editor1.getClass().getName()) + "<br>";
summary = summary + "editor2: " + (editor2 == null ? "null" : editor2.getClass().getName()) + "<br>";
summary = summary + "editor3: " + (editor3 == null ? "null" : editor3.getClass().getName()) + "<br>";
summary = summary + "clazz: " + (clazz == null ? "null" : clazz.getName()) + "<br>";
summary = summary + "</html>";
JOptionPane.showMessageDialog(null, new JLabel(summary));
} catch (IntrospectionException ex) {
}
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
pcs.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
pcs.removePropertyChangeListener(listener);
}
}
With the above bean, Netbeans uses the default Enum editor, not mine, for the property "example". However, when you change the value of "example", the popup message indicates that "example" is of type MyEnum and that the editor for MyEnum is MyEnum.Editor.... but it doesn't use it?!?!?! Are these methods deprecated and they just forgot to document that, or am I doing something wrong?
My goal is to be able to specify the editor for any class WITHIN THAT CLASS, not in multiple BeanInfo files spread throughout a library.
« Return to Thread: PropertyEditorManager.findEditor() and getPropertyEditorClass() disagree?!?!
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