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List:       opensim-dev
Subject:    [Opensim-dev] Proposal: Introduce key:value pair dictionaries into SOP and PrimitiveBaseShape
From:       dahliatrimble () gmail ! com (Dahlia Trimble)
Date:       2010-07-29 19:31:13
Message-ID: AANLkTimrD2VdW120vxWKAqfdNgx+i2Lnbr8WPFjv5M76 () mail ! gmail ! com
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I've used Dictionary<string, System.Object> in other projects, only problem
is a cast is needed to use the object on retrieval. That can be inferred
from the name or using the "is" keyword in C#.

On Thu, Jul 29, 2010 at 8:54 AM, Justin Clark-Casey <
jjustincc at googlemail.com> wrote:

> On 29/07/10 01:40, Dahlia Trimble wrote:
>
>> Similar to the OSDMap in libomv?
>>
>
> Not dissimilar, though the in-memory maps in OpenSim would need to hold
> arbitrary data types.  We couldn't use OSDMap directly unless we were happy
> to serialize objects to and from OSD for every get and set (or change the
> values directly in the OSD representation, which might be an idea).
>
>
>>
>> On Wed, Jul 28, 2010 at 2:39 PM, Justin Clark-Casey
>> <jjustincc at googlemail.com <mailto:jjustincc at googlemail.com>> wrote:
>>
>>    Hi there.  Whilst implementing media-on-a-prim, I've been keeping as
>>    much code in the MOAP region module as possible.
>>
>>    I'm quite impressed with how feasible this is.  However, there
>>    remain three major structures where the core of OpenSim has to
>>    understand something about media on a prim.
>>
>>    1)  Database plugins - to get/put values to named database columns
>>    (e.g. prims.MediaURL).
>>    2)  Script functions (e.g. llGetPrimMediaParams()).
>>    3)  Scene objects (PrimitiveBaseShape.Media and
>>    SceneObjectPart.MediaURL).
>>
>>    It's difficult to do anything right now about (1) and (2), but I
>>    believe there is an opportunity to address (3).
>>
>>    What I would like to do is introduce dictionaries into
>>    PrimitiveBaseShape and SceneObjectPart that would supplement
>>    existing fields by storing arbitrary key/value pairs.  So instead of
>>    having to hardcode a new MediaURL property on SceneObjectPart I
>>    could instead get/put the data as something like
>>    SceneObjectPart.Values["MediaURL"].
>>
>>    Thus, the dictionaries can act as blackboards for communication
>>    between plugins and modules without the core of OpenSim having to
>>    get involved.  I think that this would move us a tiny way towards
>>    our vision of being a generic virtual environment platform and away
>>    from hardcoded Second Life specifics, and make it easier to write
>>    more ambitious region modules without additions to core.
>>
>>    Thoughts?
>>
>>    --
>>    Justin Clark-Casey (justincc)
>>    http://justincc.org
>>    http://twitter.com/justincc
>>    _______________________________________________
>>    Opensim-dev mailing list
>>    Opensim-dev at lists.berlios.de <mailto:Opensim-dev at lists.berlios.de>
>>
>>    https://lists.berlios.de/mailman/listinfo/opensim-dev
>>
>>
>>
>>
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>
>
> --
> Justin Clark-Casey (justincc)
> http://justincc.org
> http://twitter.com/justincc
> _______________________________________________
> Opensim-dev mailing list
> Opensim-dev at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-dev
>
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