It would certainly be easier to leave this "1-N" and let the application sort this out. I also don't mind the regular expression, but would need to hear from others about the potential development time to fix this in existing toolkits.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John R. Hogerhuis Sent: Friday, August 24, 2007 4:50 PM To: LLRP Toolkit Development List Subject: Re: [ltk-d] proposed change in llrpdef.xml [heur] On 8/24/07, Paul Dietrich <[EMAIL PROTECTED]> wrote: > > > > > I was mistaken. This will require changes to the llrpdef.xsd file. The > llrpdef.xsd file defines repeat as an enumeration with options like, 0-1, 1, > 0-N, 1-N. There is no definition for 1-2. To change the implementation of > tagPattern as I recommend below, we will need to add a "1-2" enumeration to > the llrpdef.xsd schema file. Hmm... first thought is, no. 1-2 is not special (1-3, 1-4, 2-7, 2-N...). My actual preference would not be to model 1-2 at all and use 1-N, but to cleave to the LLRP spec, I guess you need to permit it. My argument would be that it is not necessary to encode this in the llrpdef.xml, since there are lots of "lists" of things in LLRP that have natural limits, yet the model for everything else is "0|1-N" for lists. If you use an enumeration, we need to do it in such a way that it is precluded from use in Structured Extensions. I don't think we want to rev the .xsd every time someone wants to add 1-3, 1-4, ... restrictions. Better just only allow 0|1-1|N cardinality for SE's. That said, if we really need 1-2, I would really prefer a regular expression restricted string rather than a enumeration. Then you can restrict it with something like [01]+-([0-9]+|N) or even [0-9]+-([0-9]+|N) Then we need never rev .xsd again for this. -- John. ------------------------------------------------------------------------ - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ llrp-toolkit-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/llrp-toolkit-devel ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ llrp-toolkit-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/llrp-toolkit-devel
