Examples of org.apache.wicket.markup.repeater.data.DataView

Package org.apache.wicket.markup.repeater.data

Examples of org.apache.wicket.markup.repeater.data.DataView

org.apache.wicket.markup.repeater.data.DataView
DataView is a basic implementation of AbstractDataView. Data views aim to make it very simple to populate your repeating view from a database by utilizing {@link IDataProvider} to act as an interface between the database and the dataview.
Example:
```
 <tbody> <tr wicket:id="rows"> <td><span wicket:id="id">Test ID</span></td> ... 
```
Though this example is about a HTML table, DataView is not at all limited to HTML tables. Any kind of list can be rendered using DataView.
And the related Java code:
```
 add(new DataView<UserDetails>("rows", dataProvider) { public void populateItem(final Item<UserDetails> item) { final UserDetails user = item.getModelObject(); item.add(new Label("id", user.getId())); } }); 
```
@see IDataProvider @see IPageable @author Igor Vaynberg (ivaynberg) @param < T> The Model type.

        
        final WebMarkupContainer table = new WebMarkupContainer("fileTable");
        table.setOutputMarkupId(true);
        add(table);
        
        DataView fileTable = new DataView("files", fileProvider) {


            @Override
            protected void populateItem(final Item item) {
                File file = (File) item.getModelObject();

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      }
    });


    add(new Label("selectedLabel", new PropertyModel(this, "selectedContactLabel")));


    add(new DataView("simple", new ContactDataProvider()) {
      protected void populateItem(final Item item) {
        Contact contact = (Contact) item.getModelObject();
        item.add(new ActionPanel("actions", item.getModel()));
        item.add(new Label("contactid", String.valueOf(contact.getId())));
        item.add(new Label("firstname", contact.getFirstName()));

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        final WebMarkupContainer table = new WebMarkupContainer("fileTable");
        table.setOutputMarkupId(true);
        add(table);
        
        DataView fileTable = new DataView("files", fileProvider) {


            @Override
            protected void populateItem(final Item item) {
                File file = (File) item.getModelObject();

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        tester.startPage(StylePage.class);
        tester.assertRenderedPage(StylePage.class);
        tester.debugComponentTrees();
        Catalog cat = getCatalog();
    
        DataView view = 
            (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
        assertEquals(cat.getStyles().size(), view.getItemCount());
    }

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        tester.startPage(StylePage.class);
        tester.assertRenderedPage(StylePage.class);
        
        Catalog cat = getCatalog();
    
        DataView view = 
            (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
    
        int expected = cat.getStyles().size() - cat.getStylesByWorkspace("sf").size();
    
        AdminRequest.start(new Object());
        assertEquals(expected, view.getItemCount());
    
        for (Iterator<Item> it = view.getItems(); it.hasNext();) {
            String name = it.next().get("itemProperties:0:component:link:label")
                .getDefaultModelObjectAsString();
            assertFalse("sf_style".equals(name));
        }
    }

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        tester.startPage(WorkspacePage.class);
        tester.assertRenderedPage(WorkspacePage.class);
        tester.assertNoErrorMessage();


        //assert only cite workspace visible
        DataView dv = (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
        assertEquals(1, dv.size());


        //the actual web request is finished, so we need to fake another one
        AdminRequest.start(new Object());
        assertEquals(1, dv.getDataProvider().size());
        
        WorkspaceInfo ws = (WorkspaceInfo) dv.getDataProvider().iterator(0, 1).next();
        assertEquals("cite", ws.getName());
    }

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    public void testLayerAllPage() throws Exception {
        loginAsCite();
        tester.startPage(LayerPage.class);
        tester.assertRenderedPage(LayerPage.class);


        DataView dv = 
            (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
        assertEquals(getCatalog().getResourcesByNamespace("cite", ResourceInfo.class).size(), dv.size());
    }

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        tester.startPage(StorePage.class);
        tester.assertRenderedPage(StorePage.class);
        tester.assertNoErrorMessage();
        
        DataView dv = (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
        assertEquals(getCatalog().getStoresByWorkspace("cite", StoreInfo.class).size(), dv.size());
    }

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        tester.startPage(LayerGroupPage.class);
        tester.assertRenderedPage(LayerGroupPage.class);


        Catalog cat = getCatalog();


        DataView view = 
            (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");
        assertEquals(cat.getLayerGroups().size(), view.getItemCount());
    }

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        tester.startPage(LayerGroupPage.class);
        tester.assertRenderedPage(LayerGroupPage.class);
        
        Catalog cat = getCatalog();


        DataView view = 
            (DataView) tester.getComponentFromLastRenderedPage("table:listContainer:items");


        AdminRequest.start(new Object());
        assertEquals(cat.getLayerGroups().size(), view.getItemCount());


        for (Iterator<Item> it = view.getItems(); it.hasNext();) {
            String name = it.next().get("itemProperties:0:component:link:label")
                .getDefaultModelObjectAsString();
            assertFalse("sf_local".equals(name));
        }
    }

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