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Visible or Invisible Properties When model changed [message #1112833]

Fri, 20 September 2013 04:32

Eclipse User

Hi all,

my model;

Table
  columns : Column (0..*)
  type : SQLType

Column
  autoIncrement : Boolean

Enum SQLType
  int
  varChar
  numeric
  ..

i want to constraint property view when i change Table type to numeric or int i want to show autoIncrement boolean part on properties view to user.

But when i chande type to varChar, .. i don't want to show this property to user.

I can make constraint to user for can't edit this property;

@Override
public boolean canSetProperty(Object object) {
     Column element = (Column) object;
     return ColumnUtil.isAutoIncrementSettable(element); //bool			}

but i want when item type nvarchar, .. i dont show this property to user.

so how can i implement this behaviour to my edit project.

Regards.

Re: Visible or Invisible Properties When model changed [message #1113456 is a reply to message #1112833]

Sat, 21 September 2013 01:48

Eclipse User

Serhat,

You can specialize the generated getPropertyDescriptors(Object) of the
item provider to either include the property descriptor or not; note the
default generated code will compute the property descriptors just once
the first time that method is called, so you'd need to ensure that you
recompute it each time the method is called.

On 20/09/2013 10:32 AM, serhat gezgin wrote:
> Hi all,
>
> my model;
>
>
> Table
> columns : Column (0..*)
> type : SQLType
>
> Column
> autoIncrement : Boolean
>
> Enum SQLType
> int
> varChar
> numeric
> ..
>
>
> i want to constraint property view when i change Table type to numeric
> or int i want to show autoIncrement boolean part on properties view to
> user.
>
> But when i chande type to varChar, .. i don't want to show this
> property to user.
>
> I can make constraint to user for can't edit this property;
>
>
> @Override
> public boolean canSetProperty(Object object) {
> Column element = (Column) object;
> return ColumnUtil.isAutoIncrementSettable(element);
> //bool }
>
>
> but i want when item type nvarchar, .. i dont show this property to user.
>
> so how can i implement this behaviour to my edit project.
>
> Regards.

Re: Visible or Invisible Properties When model changed [message #1114453 is a reply to message #1113456]

Sun, 22 September 2013 15:24

Eclipse User

Thanks a lot i solve this like;

@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		itemPropertyDescriptors = null;
		super.getPropertyDescriptors(object);

		addTypePropertyDescriptor(object);
		addNullablePropertyDescriptor(object);
		addDefaultValuePropertyDescriptor(object);
		addPrimaryKeyPropertyDescriptor(object);
		if (ColumnUtil.isAutoIncrementSettable(((Column) object)))
			addAutoIncrementPropertyDescriptor(object);

		return itemPropertyDescriptors;
	}

and when model changed;

	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(Column.class)) {
		case ContentPackage.COLUMN__TYPE:
			getPropertyDescriptors(notification.getNotifier());
		case ContentPackage.COLUMN__NULLABLE:
		case ContentPackage.COLUMN__DEFAULT_VALUE:
		case ContentPackage.COLUMN__PRIMARY_KEY:
		case ContentPackage.COLUMN__AUTO_INCREMENT:
			fireNotifyChanged(new ViewerNotification(notification,
					notification.getNotifier(), false, true));
			return;
		}
		super.notifyChanged(notification);
	}

Regards

[Updated on: Sun, 22 September 2013 15:40] by Moderator

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