quickstart attached to a jira ticket will help
-igor
On Fri, Dec 9, 2011 at 12:15 PM, Jablow, Eric R <eric.jab...@mantech.com> wrote:
> In my project, for business reasons, we have classes with SortedSet members.
> The classes and their elements are all Serializable. I'm having trouble
> working with a SortedSet<MantechControl> object; when I try creating a
> ListMultipleChoice<MantechControl> object for it (and putting it into a
> FormComponentPanel<SortedSet<MantechControl>>), I get all sorts of
> compilation problems. The MantechControlPanel has constructor:
>
> public MantechControlPanel(String id,
> IModel<SortedSet<MantechControl>> model) {
> super(id, model);
> control = new ListMultipleChoice<MantechControl>(
> "choices", new SetModel<NonICDisseminationControl>(choices),
> choiceList, new ChoiceRenderer<MantechControl>(
> "banner"));
> add(control);
> onModelChanged();
> }
>
> The onModelChanged() method has (after I extracted some local objects in a
> futile attempt to fix things):
>
> @Override
> protected void onModelChanged() {
> super.onModelChanged();
> if (getModelObject()!= null) {
> control.setModel(getModel());
> }
>
> The problem is that the control.setModel() expects a Model of a Collection,
> while getModel() returns a Model of a SortedSet:
>
> The method setModel(IModel<Collection< MantechControl >>) in the type
> FormComponent<Collection< MantechControl >> is not applicable for the
> arguments (IModel<SortedSet< MantechControl >>). I have good business reasons
> to use a sorted set, and what I think are good reasons to use a
> FormComponentPanel and a ListMultipleChoice. But should I do something
> different?
>
> Meanwhile, I've created a wicket/metagen quickstart project and am running
> into a similar problem there. I can upload the project somewhere if you
> want more info. Here I wrote a class ColorfulPerson that has a String name
> and a SortedSet<Color> colors. In trying to write a FormComponentPanel for
> this, I have an obvious error at the indicated line:
>
> public class ColorfulPersonPanel extends FormComponentPanel<ColorfulPerson> {
> private static final long serialVersionUID = -457616015428125432L;
> private final FormComponent<String> name;
> private final FormComponent<Collection<Color>> colors;
> private List<Color> colorChoices = Arrays.asList(Color.values());
> public ColorfulPersonPanel(String id, IModel<ColorfulPerson> model) {
> super(id, model);
> name = new TextField<String>("name", new Model<String>());
> add(name);
> colors = new ListMultipleChoice<Color>("colors", new
> SetModel<Color>(), colorChoices);
> add(colors);
> onModelChanged();
> }
> @Override
> protected void onModelChanged() {
> super.onModelChanged();
> ColorfulPerson colorfulPerson = getModelObject();
> if (colorfulPerson != null) {
>
> name.setModel(MetaModel.of(colorfulPerson).get(ColorfulPersonMeta.name));
>
> colors.setModel(MetaModel.of(colorfulPerson).get(ColorfulPersonMeta.colors));
> // Error as the model is one of
> SortedSet<Color> while the ListMultipleChioice expects a model of
> Collection<Color>.
>
> } else {
> name.setModelObject(null);
> colors.setModelObject(null);
> }
> }
>
> Could there be a MetaModel.as(Class<?> castingClass) method?
>
> Respectfully,
> Eric Jablow
>
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