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Re: Your comments on Device Description Repository Simple API ( LC-1954)

From: <rotan.hanrahan@mobileaware.com>
Date: Sun, 25 May 2008 20:21:46 +0000
To: (wrong string) é Manuel Cantera <
Cc: public-ddwg-comments@w3.org
Message-Id: <E1K0Miw-0004Cn-W7@farnsworth.w3.org>


 Dear José Manuel Cantera ,

The Mobile Web Initiative Device Description Working Group has reviewed
the comments you sent [1] on the Last Call Working Draft [2] of the Device
Description Repository Simple API published on 4 Apr 2008. Thank you for
having taken the time to review the document and to send us comments!

The Working Group's response to your comment is included below, and has
been implemented in the new version of the document available at:
http://www.w3.org/2005/MWI/DDWG/drafts/api/080525.

Please review it carefully and let us know by email at
public-ddwg-comments@w3.org if you agree with it or not before 5 June
2008. In case of disagreement, you are requested to provide a specific
solution for or a path to a consensus with the Working Group. If such a
consensus cannot be achieved, you will be given the opportunity to raise a
formal objection which will then be reviewed by the Director during the
transition of this document to the next stage in the W3C Recommendation
Track.

Thanks,

For the Mobile Web Initiative Device Description Working Group,
Matt Womer
W3C Staff Contact

 1.
http://www.w3.org/mid/93AA9E47B82F684A868C217766F489050397FB9ECE@EXCLU2K7.hi.inet
 2. http://www.w3.org/TR/2008/WD-DDR-Simple-API-20080404/


=====

Your comment on 4.3.2 Query Methods:
> The PropertyValue interface publishes the method "getEnumeration()" to
> deal with property values that are an enumeration of several values,
> such as image formats. If a content adaptation solution needs to check
> if a Delivery Context supports "gif" it will need to do the following:
> 
> PropertyValue val =
> service.getPropertyValue(evidence,"supportedImageFormats");
> 
> String[] imageFormats = val.getEnumeration();
> 
> gifSupported = false;
> 
> for(int j = 0; j < imageFormats.length; j++) {
>     if(imageFormats[j].equals("gif")) {
>        gifSupported = true;
>     }
> }
> 
> As it is seen this is a very inconvenient way to do a more than common 
> operation. Also it will force develoeprs to copy & paste this code over
> all the applications
> 
> Proposed Amendment:
> 
> + Add a contains method on the PropertyValue interface that returns
> true or false depending on the values of the enumeration
> 
> boolean gifSupported =
>
service.getPropertyValue(evidence,"supportedImageFormats").contains("gif");
> 
> José Manuel Cantera
> Senior Technologist
> Telefónica I+D


Working Group Resolution (LC-1954):
The DDR Simple API has been designed to be a fair balance between
core/essential methods and common (convenience) methods, keeping in mind
the power of established programming languages and libraries in which the
implementations are expected to function.

In many expected implementation languages, including Java, there are
standard libraries to perform the contains() method as described, which
will suffice for the purpose of the Simple API. More complex (and
potentially more efficient) methods may be considered by individual
implementers but such features would be exposed as custom extensions,
which would be outside the scope of this specification.

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Received on Sunday, 25 May 2008 20:22:24 GMT

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