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swing/awt threading question [message #440009]

Tue, 20 July 2004 16:04

David Scott

Messages: 19
Registered: July 2009

Junior Member

i am writing a ViewPart for the eclipse Workbench using a simple JList
swing component inside swt. the ViewPart registers itself as an
ISelectionProvider using an adapter for the ListSelectionModel in the
JList. The ViewPart is providing IAdaptable(s) for the Property view and
the Outline view which are both still swt components. When the
ListSelectionModel fires the Property view is notified by the adapter
and it got an SWTException indicating a threading error - so in the
ISelectionProvider adapter i put the notification inside a
Display.getDefault().asyncExec(). ok, so this left me wondering when i
get calls coming from swt components - do i need to wrap them in
EventQueue.invokeLater()?

thanks-

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Re: swing/awt threading question [message #440039 is a reply to message #440009]

Wed, 21 July 2004 16:38

Steve Northover

Messages: 1636
Registered: July 2009

Senior Member

Yes. Swing widgets are single threaded and should only be called from the
event dispatch thread.

"David Scott" <user@example.net> wrote in message
news:cdjfnp$rc8$1@eclipse.org...
> i am writing a ViewPart for the eclipse Workbench using a simple JList
> swing component inside swt. the ViewPart registers itself as an
> ISelectionProvider using an adapter for the ListSelectionModel in the
> JList. The ViewPart is providing IAdaptable(s) for the Property view and
> the Outline view which are both still swt components. When the
> ListSelectionModel fires the Property view is notified by the adapter
> and it got an SWTException indicating a threading error - so in the
> ISelectionProvider adapter i put the notification inside a
> Display.getDefault().asyncExec(). ok, so this left me wondering when i
> get calls coming from swt components - do i need to wrap them in
> EventQueue.invokeLater()?
>
> thanks-
>

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