15 messages in net.java.dev.jna.usersRe: [jna-users] Override Pointer.fina...
FromSent OnAttachments
bb...@cox.netJun 26, 2007 9:11 am 
Timothy WallJun 26, 2007 12:52 pm 
Wayne MeissnerJun 26, 2007 7:43 pm 
Ben ChaseJun 26, 2007 8:39 pm 
Wayne MeissnerJun 26, 2007 10:33 pm 
Timothy WallJun 27, 2007 5:08 am 
Timothy WallJun 27, 2007 5:20 am 
Rick GoldsteinJun 27, 2007 8:50 am 
Timothy WallJun 27, 2007 9:59 am 
Ben ChaseJun 27, 2007 7:26 pm 
Timothy WallJun 28, 2007 3:56 am 
bb...@cox.netJun 28, 2007 4:43 am 
bb...@cox.netJun 28, 2007 5:37 am 
bb...@cox.netJun 28, 2007 6:18 am 
Wayne MeissnerJun 28, 2007 7:41 am 
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Subject:Re: [jna-users] Override Pointer.finalize to reclaim Native resources?Actions...
From:Ben Chase (bb@cox.net)
Date:Jun 27, 2007 7:26:51 pm
List:net.java.dev.jna.users

On Jun 27, 2007, at 8:21 AM, Timothy Wall wrote:

The current state of member/class access is not written in stone, but mostly as restrictive as possible to communicate to the user which classes they really need to be looking at. We're trying to drive the API by actual usage, which unfortunately is limited right now to Wayne's gstreamer work and my various experiments with various w32 and X11 APIs.

Uhhhh, I'm actually using JNA, mostly starting within the past week. Mistake? Hope not. So far it looks good. I've already got Interfaces to three .dlls, containing in total 90 methods. I'll have at least two more .dlls thrown into the mix within the month.

I went ahead with the solution sketched by Wayne ("delegate").

I skipped the type mapping, at least for now, as I see no real benefit from it in my case. (It would have been just as hard to get all the type mapping correct as it was to get all the method arguments correct. The code I ended up with is more direct and obvious to any strangers who might wander in and look at my code. Plus, I'm in a hurry...)

I still think the subclassing would have been okay for some (but not all) of my usages (assuming the necessary JNA methods had been changed from "package private" to "protected"). I understand now what Wayne meant about the inheritance of all the spurious JNA- specific methods, and am sympathetic. But not all of the handles returned from .dll methods wander too far through my code.

In spite of all the chin-scratching and tinkering with this or that usage of JNA you may have seen from me, I'm generally pleased with the ease-of-use of JNA, and the resulting appearance of that part of the project.

- Ben