/**
* Nullified everything that was initialized.
*
* @throws Exception
*/
protected void tearDown() throws Exception {
selectionHolder.setValue(null);
nodeHolder.setValue(null);
nodeHolder = null;
selectionHolder = null;
windowX = windowW = windowH = 0;
super.tearDown();
}
/**
* Prompts the user for a type from the specified class repository. Set the value of the specified
* selection holder to the type selected by the user. This method will not "clear" the selection;
* i.e. it will not set the value of the selectionHolder to null. The assumption is that once you
* get here, you require a type to be selected.
*
* @param context The context ...
* @param classRepository The repository used to retrieve the list of classes
* @param selectionHolder The holder of the selected item if set, otherwise the value will remain
* <code>null</code>
*/
public static void promptForType(
WorkbenchContext context,
ClassDescriptionRepository repository,
PropertyValueModel selectionHolder) {
try {
context.getCurrentWindow().setCursor(CursorConstants.WAIT_CURSOR);
// If the selection holder is not a SimplePropertyValueModel but a
// PropertyAspectAdapter, we make sure it has a listener to it so that
// the subject has been engaged and setValueFromSubject() is called
PropertyChangeListener fakeListener =
new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent e) {}
};
selectionHolder.addPropertyChangeListener(PropertyValueModel.VALUE, fakeListener);
ClassChooserDialog dialog = ClassChooserDialog.createDialog(repository, context);
dialog.setVisible(true);
if (dialog.wasConfirmed()) {
selectionHolder.setValue(dialog.selection());
}
selectionHolder.removePropertyChangeListener(PropertyValueModel.VALUE, fakeListener);
} finally {
context.getCurrentWindow().setCursor(CursorConstants.DEFAULT_CURSOR);
}
}
