[platform-dev] Question about non-singleton TopComponent

[Hermann Matthes]

Hello,
I have a non-singleton TopComponent which displays items in an outline
view. The users enters query criteria in a query dialog and when the
result is received from the server, a fresh TopComponent is created and
opened.

The OutlineView is filled using the following statement:
explorerManager.setRootContext(new AbstractNode(Children.create(new
ItemChildFactory(items), true)));

I create a child factory (ItemChildFactory), which automatically
registers itself at an EventNotifier (The EventNotifier uses
WeakReferences for the listenerList).

When the user closes the TopComponent,
explorerManager.setRootContext(Node.EMPTY);
is called in TopComponent.componentClosed()

I thought, that this causes the garbage collector to remove the child
factory. But a trace shows, that the EventNotifier still informs the
child factory about new events.

Can anybody tell me what to do to destroy the child factory ?

Thanks in advance
Hermann

[Jockey10]

Could you just recreate the ExplorerManager instance instead of emptying the children? ie;