[news.eclipse.platform.rcp] orge.eclipse.ui.handlers enabledWhen using a

[Julien <jdenet@xxxxxxxxxxxxx>]

Hello,

I'm using eclipse 3.3 commands and I handlers. I want that a command can 
be enabled or disabled according to the user credentials on the selected 
element. In the enabledWhen details, I don't find any way to call 
another class to know if the command can be enabled or not. Maybe I'm 
missing something or it is the wrong way to do this.
Please let me know if I'm wrong,

Best regards,
Julien