12 messages in org.oasis-open.lists.cgmo-webcgmRe: [cgmo-webcgm] ISSUE: what does '...| From | Sent On | Attachments |
|---|---|---|
| Lofton Henderson | Apr 27, 2005 7:10 am | |
| Benoit Bezaire | Apr 27, 2005 8:53 am | |
| Lofton Henderson | Apr 27, 2005 9:29 am | |
| Dieter Weidenbruck | Apr 27, 2005 9:49 am | |
| Lofton Henderson | Apr 27, 2005 11:13 am | |
| Benoit Bezaire | Apr 27, 2005 12:02 pm | |
| Benoit Bezaire | Apr 27, 2005 12:36 pm | |
| Dieter Weidenbruck | Apr 27, 2005 1:09 pm | |
| Benoit Bezaire | Apr 27, 2005 1:59 pm | |
| Dieter Weidenbruck | Apr 27, 2005 2:10 pm | |
| Lofton Henderson | Apr 27, 2005 2:59 pm | |
| Benoit Bezaire | Apr 28, 2005 6:09 am |
| Subject: | Re: [cgmo-webcgm] ISSUE: what does 'get..' return? | |
|---|---|---|
| From: | Lofton Henderson (lof...@rockynet.com) | |
| Date: | Apr 27, 2005 9:29:39 am | |
| List: | org.oasis-open.lists.cgmo-webcgm | |
At 11:54 AM 4/27/2005 -0400, Benoit Bezaire wrote:
Wednesday, April 27, 2005, 10:09:58 AM, Lofton wrote:
LH> Hi WebCGM TC,
LH> I'm working on the DOM test case for ApsAttr 'viewcontext', and think that LH> we ought to clarify something about the 'get...' methods. Specifically I'm LH> working with getAppStructureAttr, section 5.7.6 (but this probably applies LH> somewhere else as well).
LH> Let's consider the case of 'viewcontext' first. Section 3.2.2.2 says LH> "Initial value: none", which is reasonable. If I getAppStructureAttr on an LH> APS where there is no explicit 'viewcontext' ApsAttr, then the answer LH> should be "undefined" (see side-issue about "undefined" below). This is LH> the way DOM2 works, so we should stick with that unless we have a LH> compelling reason to deviate. I've been doing a bit more research on this... All DOM Level 1, 2 and 3 are very clear about the getAttribute() method (similar to getAppStructureAttr), they all state that the return value is a DOMString or an empty string if the attribute is not specified or doesn't have a default (i.e., DTD) value.
Right. The only issue is whether or not the WebCGM-specific "Initial value" concept is equivalent to "default (i.e., DTD)" value. We agree that it is NOT.
Could you send us a pointer to the DOM 'undefined' concept?
Sorry, I was sloppy and synthesized the "undefined" from here, the conceptual description of Interface Attr in DOM2 Core (p.51). What it actually says is "does not exist" (see 3rd pgph): [1] http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/DOM2-Core.pdf
Indeed, if I had looked further on p.54, getAttribute method, return value should be empty string as you said: "...value as a string, or the empty string if that attribute does not have a specified or default value." So my side-issue goes away, thanks.
-Lofton.