how to reset a layer properly ?

isoman · 11-24-2011, 09:33 PM

Hello,
I'm using wwj to load dynamiclly WWicon from a databse every seconds , insert them in a renderbale layer and display them .
It's working but if I let my application work for a long time (2 hours) I get an out of memory exception .
I'm clearing the content of the layer with this piece of code but I thinks that it's not enough to free the memory :

Code:

  layerVol.removeAllIcons();
        layerVol.resetListeVol();
        layerVol.dispose();

Thanks for the help .

trojan_chick · 12-06-2011, 07:36 PM

Sounds like a memory leak of some sort.

Not sure if you're just reusing layerVol as a container, or making a new layerVol every time you regenerate the layer, but check to see if layerVol.dispose() sets layerVol to null. If not you might want to try this before calling
System.gc().

heidtmare · 12-07-2011, 06:03 PM

removeAllIcons(); // clears the collection
resetListeVol(); // doesn't exist as far as i can tell
dispose(); // does nothing in an IconLayer

your issue is probably with the renderables and tc's proably spot on with a garbage collection issue. make sure your not holding a reference to the images anywhere but in the renderable.

11-24-2011, 09:33 PM	#1
isoman Junior Member Join Date: Feb 2009 Posts: 17	how to reset a layer properly ? Hello, I'm using wwj to load dynamiclly WWicon from a databse every seconds , insert them in a renderbale layer and display them . It's working but if I let my application work for a long time (2 hours) I get an out of memory exception . I'm clearing the content of the layer with this piece of code but I thinks that it's not enough to free the memory : Code: layerVol.removeAllIcons(); layerVol.resetListeVol(); layerVol.dispose(); Thanks for the help .

12-07-2011, 06:03 PM	#3
heidtmare Senior Member Join Date: Feb 2008 Location: Melbourne, FL, USA Posts: 678	removeAllIcons(); // clears the collection resetListeVol(); // doesn't exist as far as i can tell dispose(); // does nothing in an IconLayer your issue is probably with the renderables and tc's proably spot on with a garbage collection issue. make sure your not holding a reference to the images anywhere but in the renderable. __________________

12-06-2011, 07:36 PM	#2
trojan_chick Junior Member Join Date: Jul 2011 Posts: 5	Sounds like a memory leak of some sort. Not sure if you're just reusing layerVol as a container, or making a new layerVol every time you regenerate the layer, but check to see if layerVol.dispose() sets layerVol to null. If not you might want to try this before calling System.gc().