finalize()

[Harold Comere]

Hi all,

I can not find the info on the web but :

Does finalize() method works properly after gwt compilation ?

Regards,

Haroldli

[Thomas Broyer]

On Friday, August 24, 2012 12:28:27 PM UTC+2, Harold wrote:

Hi all,

I can not find the info on the web but :

Does finalize() method works properly after gwt compilation ?

No. There's no such thing in JavaScript so it cannot be emulated.

[Joseph Lust]

Generally speaking, there is no reason you should need finalize either as it is a anti-pattern in all but a very few cases. However, for items like widgets, you can do cleanup in the OnDetach and OnUnload methods.

Sincerely,

Joseph

[Harold Comere]

Hi,

Thank you for answers !

I am using GWT for 3D purpose with WebGL.

When i am destroying an object from the 3D scene, i have to free associated webgl objects to manage GPU memory.

Some webgl objects are shared between many objects, so i need to destroy the gl objects only when they are not used by any other object.

In JAVA, the finalize() method done the trick as the garbage collector checks references to destroy unused objects.

If JavaScript do not do that, i think i have to do a kind of smart pointer by myself.

Regards,

Harold

2012/8/24 Joseph Lust <lifeo...@gmail.com>

Generally speaking, there is no reason you should need finalize either as it is a anti-pattern in all but a very few cases. However, for items like widgets, you can do cleanup in the OnDetach and OnUnload methods.

Sincerely,

Joseph

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Small WebGL 3D engine for GWT

http://code.google.com/p/ethereal-engine/

[Alain Ekambi]

I think even in Java there are few cases where you should rely on finalize.

Actualy you should not rely on it at all ....

2012/8/24 Harold Comere <harold...@gmail.com>

[Joseph Lust]

The commonly accepted two use cases are (1) for safety-net finalizers in older code (ensure resource is closed, but not preferred means), and (2) for native peers for finalizer chaining into native JNI calls that must have their finalizers called.

Sincerely,

Joseph