No idea? Anybody?
On Tue, 3 Jul 2012 22:50:04 +0200
Andre Schütz <[email protected]> wrote:
> Hello,
>
> here is an abstract code example of my problem with my application.
>
> ####################
> # StartPage
> ####################
> class StartPage extends WebPage {
> public StartPage(PageParameters parameters) {
> add(new SearchForm("searchForm", parameters));
> }
>
> private class SearchForm extends StatelessForm {
> public SearchForm(String id, final PageParameters params) {
> super(id);
> init();
> }
>
> private void init() {
> Button startButton = new Button("button_search") {
> @Override
> public void onSubmit() {
> PageParamerters p = new PageParameters();
> // some additional checks with the parameters
> ....
> setResponsePage(MyFormPage.class, p);
> }
> }
> }
> }
> }
>
> #################
> # MyFormPage
> #################
> class MyFormPage extends WebPage {
> public MyFormPage(PageParameters parameters) {
> super(parameters);
> Model<MySearchModel> model = new Model<MySearchModel>() {
> MySearchModel msm = new MySearchModel();
>
> @Override
> public MySearchModel getObject() {
> return msm;
> }
>
> @Override
> public void setObject(MySearchModel newModel) {
> this.msm = newModel;
> }
> }
>
> CompundPropertyModel<MySearchModel> cpm = new
> CompoundPropertyModel<MySearchModel>(model);
> add(new AdvancedSearchForm("asForm", cpm));
> }
>
> private class AdvancedSearchForm extends StatelessForm<MySearchModel> {
> private String name = null;
>
> public AdvancedSearchForm (String id, IModel<MySearchModel> model) {
> super(id, model);
> init(model);
> }
>
> private void init(IModel<MySearchModel> model) {
> IModel<List<String>> classes = new
> LoadableDetachableModel<List<String>>() {
> @Override
> public List<String> load() {
> List<String> classes = HelperClass.getClasses();
> Collections.sort(classes);
> return classes;
> }
> }
>
> IChoiceRenderer<Object> rendererClasses = new IChoiceRenderer<Object>()
> {
> public Object getDisplayValue(Object obj) {
> return obj;
> }
>
> public String getIdValue(Object obj, int index) {
> return obj.toString();
> }
> };
> CheckBoxMultipleChoice<String> classesChoice =
> new CheckBoxMultipleChoice<String>("classes",
> classes,
> rendererClasses);
> add(classesChoice);
>
> TextField<String> tf = new TextField<String>("name", new
> PropertyModel<String>(this, "name"));
> add(tf);
>
> add(new Button("searchbutton_search") {
> @Override
> public void onSubmit() {
> makeSubmit();
> }
> });
> }
>
> /**
> * Do the submit and got to the response page
> */
> private void makeSubmit() {
> MySession s = (MySession)getSession();
> MySearchModel modelObject = this.getModelObject();
>
> if (!s.mySearchModelExists(modelObject.hashCode())) {
> s.setMySearchModel(modelObject);
> }
>
> PageParameters p = new PageParameters();
> // following method creates parameters from the model
> p = MyParameterHelper.preparePageParameters(p, modelObject);
> setResponsePage(MyFinalPage.class, p);
> }
> }
> }
>
> ####################
> # MySearchModel
> ####################
>
> public class SearchModel implements Serializable {
> private String name = null;
> private List<String> classes = null;
>
> public void setName(String newName) {
> name = newName;
> }
>
> public void setClasses(List<String> newClasses) {
> classes = newClasses;
> }
>
> public String getName() {
> return name;
> }
>
> public List<String> getClasses() {
> return classes;
> }
> }
>
> The process:
>
> (0) I open the Opera Browser.
> (1) I click on the button of the StatelessForm (SearchForm) in the StartPage
> class.
> (2) The MyFormPage site is displayed.
> (3) I select some classes and click the button in the AdvancedSearchForm.
> (4) The MyFinalPage site is displayed.
> (5) I open the Firefox Browser.
> (6) I see the StartPage and click the button in the SearchForm.
> (7) The MyFormPage is displayed and the classes from step (3) are selected.
> (8) Additionally, I added a System.out.println(model.toString) before the
> line:
> CompundPropertyModel<MySearchModel> cpm = new
> CompoundPropertyModel<MySearchModel>(model);
> and looked into the Catalino.out logs. You can see that this is directly
> after the
> initilization of the: Model<MySearchModel> model = new Model<MySearchModel>()
> -> the logs tell me that the classes from step (3) are in the model
> => You can see in the model above that the classes are initialized with null.
>
> Puh.
> This is my problem. I hope that this code example gives a good imagination
> of my problem.
> I do not know why the classes from step 3 are in the model after a new
> initialization.
>
> I would be very thankful for a solution.
>
> Thanks,
> Andre
>
>
>
>
>
> On Tue, 3 Jul 2012 20:16:13 +0200
> Andre Schütz <[email protected]> wrote:
>
> > There is one important information that I had forgotten to
> > mention. The link on my start page is not a link. It is a button
> > from within a form.
> >
> > Andre
> >
> > On Tue, 3 Jul 2012 11:41:36 +0200 (CEST)
> > [email protected] wrote:
> >
> > > Hello,
> > >
> > > thanks for the answers. At the moment I am not able to access my code but
> > > let
> > > me explain the code in detail and give you some additional examples. I
> > > think
> > > the idea with the stateful behavior could be right but I do not
> > > understand the
> > > reason.
> > >
> > > In detail.
> > >
> > > - I have a starting page where a Link is constructed that depending on
> > > the available
> > > PageParameters links to the second page with or without PageParameters:
> > >
> > > p.. PageParameters
> > >
> > > setResponsePage(MyPage2.class, p) or setResponsePage(MyPage2.class) or
> > >
> > > - After clicking the link on the starting page, the MyPage2 will be
> > > opened and
> > > the constructor adds the elements to the page. A Form will be added and
> > > gets
> > > a Model that is created in the constructor:
> > >
> > > MyModel model = new MyModel();
> > >
> > > The MyModel has two fields.
> > > class MyModel {
> > > private String text;
> > > private List<String> classes;
> > > public void setText ..
> > > public void setClasses...
> > > public String getText ...
> > > public List<String> getClasses...
> > > }
> > >
> > > The "classes" field is pre-filled with 3 entries in the MyModel class.
> > >
> > > Before the end of the constructor, my Form is added with:
> > > add(new MyForm("id", new CompoundPropertyModel(model)));
> > >
> > > When I submit the form, the MyPage3 is opened and the values from
> > > the MyForm are used.
> > >
> > > When I click back to my starting page and click on the link to MyPage2,
> > > the selected values from the first click to this page are filled in the
> > > MyModel. I printed the values of MyModel directly after the line:
> > > MyModel model = new MyModel()
> > > Normally, the pre-filled values should be in the classes variable. BUT
> > > ...
> > > I have the selected values from the first call of the MyPage2.
> > > That's my miracle :)
> > >
> > > Thanks for any additional help
> > > Andre
> > >
> > > ----- Original Message -----
> > > From: [email protected]
> > > To: [email protected]
> > > Date: 03.07.2012 07:44:54
> > > Subject: Re: Model is not created
> > >
> > >
> > > > On Mon, Jul 2, 2012 at 11:45 PM, Andre Schütz <[email protected]> wrote:
> > > >> Hello,
> > > >>
> > > >> I have a problem with the creation of a model in one of my pages.
> > > >> It works as follows:
> > > >>
> > > >> I have a link that uses setResponsePage(new MyPage(parameters)) on the
> > > >> click
> > > >
> > > > I'd recommend to use setResponsePage(MyPage.class, parameters) instead
> > > > in this case. This way you will have a nice looking url and the page
> > > > may stay stateless if there are no stateful components/behaviors in
> > > > it.
> > > > If you know the parameters earlier then you can even use
> > > > BookmarkablePageLink("id", MyPage.class, parameters) - this will save
> > > > you a http redirect.
> > > >
> > > >> with parameters as PageParameters.
> > > >> At the MyPage site, the constructor creates a:
> > > >> IModel<MyModel> model = new IModel<MyModel>() {
> > > >> public void setObject ..
> > > >> public MyModel getObject..
> > > >> }
> > > >>
> > > >> This variable is used to create a CompoundPropertyModel for a Form.
> > > >>
> > > >> The first time when I click on my link to the MyPage site, everything
> > > >> is fine. At the second time, the MyModel variable is not empty. The
> > > >> variable is filled with the selected values from the first time when
> > > >> I clicked on the link to the MyPage site.
> > > >>
> > > >> I do not understand this behavior. Normally, the MyModel variable
> > > >> should be empty and not filled with the last selection.
> > > >>
> > > >> Has someone an idea?
> > > >>
> > > >> Thanks,
> > > >> Andre
> > > >>
> > > >> --
> > > >> Andre Schütz <[email protected]>
> > > >>
> > > >> ---------------------------------------------------------------------
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> > > >> For additional commands, e-mail: [email protected]
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > Martin Grigorov
> > > > jWeekend
> > > > Training, Consulting, Development
> > > > http://jWeekend.com
> > > >
> > > > ---------------------------------------------------------------------
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> > > > For additional commands, e-mail: [email protected]
> > >
> > >
> > > ---------------------------------------------------------------------
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> > > For additional commands, e-mail: [email protected]
> >
> >
> > --
> > Andre Schütz <[email protected]>
> >
> > ---------------------------------------------------------------------
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> > For additional commands, e-mail: [email protected]
>
>
> --
> Andre Schütz <[email protected]>
>
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--
Andre Schütz <[email protected]>
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