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Listeners Firing In the W

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  Listeners Firing In the W "Jason Cavett" <jason.cavett@THRWHITE.remove-dii-this> - 2011-04-27 15:31 +0000
    Re: Listeners Firing In t "Michael Rauscher" <michael.rauscher@THRWHITE.remove-dii-this> - 2011-04-27 15:31 +0000
    Re: Listeners Firing In t "Daniel Pitts" <daniel.pitts@THRWHITE.remove-dii-this> - 2011-04-27 15:31 +0000

#1087 — Listeners Firing In the W

  To: comp.lang.java.gui
As far as I know, listeners fire in the order that they're added to an
object.

With that in mind, I am creating a JTree (extend JTree).  Here is my
setup process...

1. I first set the tree's model (class/es that implement
MutableTreeNode).

2. Set the tree's cell editor.  The cell editor extends
DefaultTreeCellEditor and implements the CellEditorListener
interface.  When I set the tree's cell editor, the constructor of my
cell editor sets itself as its own listener.

3. I then have the tree's model items add themselves as
TreeModelListeners of the tree (they implement the TreeModelListener
interface).  This way they can react to changes made directly to the
tree.


So, if I rename a node on the tree, I want the CellEditorListener to
fire first (to update the model item that was changed) and I want the
TreeModelListener to fire second.  However, the reverse is happening.
I'm very confused why this is.  Can anybody explain how listeners fire
or why these listeners are not firing in the (seemingly appropriate
order).

Sorry I don't have any code to paste.  Thanks for any help.

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#1088 — Re: Listeners Firing In t

  To: comp.lang.java.gui
Jason Cavett wrote:
> As far as I know, listeners fire in the order that they're added to an
> object.

No. Apart from that you're talking about different types of listeners.

> When I set the tree's cell editor, the constructor of my
> cell editor sets itself as its own listener.

Why?

> 
> 3. I then have the tree's model items add themselves as
> TreeModelListeners of the tree (they implement the TreeModelListener
> interface).  This way they can react to changes made directly to the
> tree.

Without knowing the details: wrong way. Let the TreeModel update it's items.

Bye
Michael

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#1095 — Re: Listeners Firing In t

  To: comp.lang.java.gui
On Mar 2, 10:21 am, "Jason Cavett" <jason.cav...@gmail.com> wrote:
> As far as I know, listeners fire in the order that they're added to an
> object.
*bzzt* wrong.
There isn't any guaranty about the order events are processed, other
than they are generally processed in the event dispatch thread
(assuming you're using Swing).

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