Re: [Springframework-rcp-dev] Tiger and Enums

[Benoit X. <bx...@ob...>]

Hi Lieven,

Thank you for your reply.  I agree with you that sometimes not having =
all the enum messages will generate a rather nasty exception...
My issue is slightly different in the sense that user X could see A,B,C =
but user Y could only see A,B. This is determined by the application.
So the list of Enums that can be put in the combo varies.

Unfortunately, TigerEnumComboBoxBinder.createEnumSelectableItems is =
private and cannot be overridden.
I ended up have to overwrite the createListBinding.

    @Override
    protected AbstractListBinding createListBinding(final JComponent =
control, final FormModel formModel, final String formPropertyPath) {
        final ComboBoxBinding binding =3D (ComboBoxBinding) =
super.createListBinding(control, formModel, formPropertyPath);
        binding.setSelectableItems(createEnumSelectableItems(formModel, =
formPropertyPath));
        return binding;
    }

    private Enum[] createEnumSelectableItems(final FormModel formModel, =
final String formPropertyPath) {
... return my list of selectable items
  }

I think it would be better if createEnumSelectableItems was protected.=20


Thanks

Regards

Benoit.

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-----Original Message-----
From: spr...@li... =
[mailto:spr...@li...] On Behalf =
Of Lieven Doclo
Sent: 23 January 2008 07:31
To: spr...@li...
Subject: Re: [Springframework-rcp-dev] Tiger and Enums

Hi Benoit,

I've also come across this problem. If the enum value that you don't=20
want to show are consistent throughout your application, you could=20
modify the enumcomboboxbinder to only show values for which you have=20
provided a message. Then in your messages you omit the messages for the=20
values you don't want to show.

Something like this:

@SuppressWarnings("unchecked")
     private List<Enum> createEnumSelectableItems(FormModel formModel,=20
String formPropertyPath)
     {
         Class propertyType =3D getPropertyType(formModel, =
formPropertyPath);
         Class<Enum> enumPropertyType =3D propertyType;
         List<Enum> out =3D new ArrayList<Enum>();

         for (Enum e : enumPropertyType.getEnumConstants())
         {
             String desc =3D getMessage(enumPropertyType.getName() + "." =
+=20
e.name());
             if (!StringUtils.isEmpty(desc))
             {
                 out.add(e);
             }
         }

         // return enumPropertyType.getEnumConstants();
         return out;
     }

and in your createListBinding of your ...Binder you use

binding.setSelectableItems(createEnumSelectableItems(formModel,=20
formPropertyPath));

That's how I solved it. I had to rewrite TigerEnumComboboxBinder since=20
message handling over here is a bit different than standard RCP.

Grtz,

Lieven

Benoit Xhenseval schreef:
> Hi,
>=20
> =20
>=20
> I love the TigerEnumComboBoxBinder and the automatic name formatting.
>=20
> =20
>=20
> I have however a case where the application must fill the combo box =
with=20
> a SUB-SELECTION of the values of an enum=E2=80=A6
>=20
> How could we do this?  Please note that the sub-selection should be=20
> dynamic and not specified in any xml,etc.
>=20
> =20
>=20
> I think that If the following method was overridable/protected, it =
would=20
> be easier to achieve what I need:
>=20
>     *private* Enum[] createEnumSelectableItems(FormModel formModel,=20
> String formPropertyPath)
>=20
> =20
>=20
> Has anyone done this?
>=20
> =20
>=20
> Thanks & best regards
>=20
> =20
>=20
> Benoit
>=20
> =20
>=20
> ------------------------------
>=20
> IMPORTANT NOTICE
>=20
> This communication contains information that is considered =
confidential=20
> and may also be privileged . It is for the exclusive use of the =
intended=20
> recipient(s). If you are not the intended recipient(s) please note =
that=20
> any form of distribution, copying or use of this communication or the=20
> information in it is strictly prohibited and may be unlawful. If you=20
> have received this communication in error please return it to the =
sender=20
> and delete the original.
>=20
> =20
>=20
>=20
> =
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>=20
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