Hi,
I have serveral classes that extend from a baseclass. I display them in a
CellTree.
Now, if a specific class (Cat) is displayed, I want this class to have
subentries. Similar to:
Dog1
Dog2
Cat1
- Age Cat1
Dog3
Dog4
How can I achieve this??
class Animal {
//every animal gets a name
String name;
}
class Dog extends Animal {}
class cat extends Animal {
//only cat shall have an age
int age;
}
//data provider will be set in onLoadModule()
private final ListDataProvider<Animal> animals = new
ListDataProvider<Animal>();
//the view model
class AnimalModel implements TreeViewModel {
@Override
public <T> NodeInfo<?> getNodeInfo(T value) {
List<HasCell<Animal, ?>> hasCells = new ArrayList<HasCell<Animal,
?>>();
hasCells.add(new HasCell<Animal, Animal>() {
private AnimalCell cell = new AnimalCell();
}
if (value instanceOf Cat) {
//what do I have to do in order to display subentries only for
cats??
}
return new DefaultNodeInfo<Animal>(animals, new
CompositeCell<Animal>(hasCells));
}
}
//renderer for parent items like "Dog1", "Cat1"...
class AnimalCell extends AbstractCell<Port> {
@Override
public void render(Context context, Animal animal, SafeHtmlBuilder sb) {
sb.appendEscaped(animal.getName());
}
}
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-web-toolkit/-/QG468QIvJpQJ.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
