[news.eclipse.modeling.gmf] feature label mapping

[pns57@xxxxxxxxxxx (Pierre )]

Hello every body,

I have a feature label mapping with two features "MaxCardinality" and 
"MinCardinality". I want to display my cardinalities:
- On the diagram itself it should show "<MinCardinality..MaxCardinality>", 
so I set the view pattern to "<{0}..{1}>"
- An exception is, when the MaxCardinality is -1, I want to display on the 
diagram the character 'n'. For example: <0..n>

How can I do to express this rule? with EditorPattern, EditPattern or in 
the code?

It's my currently feature label mapping:

Diagram Label:   Diagram Label MyLabel
Edit Method:     MESSAGE_FORMAT
Editor Pattern: 
Edit Pattern:   
Features:        MinCardinality : EInt, MaxCardinality : EInt
Read Only:       true
View Method:     MESSAGE_FORMAT
View Pattern:    <{0}..{1}>

Somebody can help me?

Thank you in advance.

Best Regards

Pierre