#: Jukka Zitting changed the world a bit at a time by saying on 11/11/2005
8:12 PM :#
Hi,
Alexandru Popescu wrote:
Isn't JCR-247 (chid axis support for XPATH predicates) a requirement of
JSR170?
I don't think so, even if the XPath grammar in JSR 170 defines
predicates quite generally as "[" Expr "]". The wording of JSR 170
indicates that XPath predicates need only be allowed for the last
location step and seems to indicate that only properties and the few
XPath functions are required. See the sections 6.6.3.3 and 6.6.4.7 of
the JSR 170 specification for details.
Same unsure thoughts here. I've read those a few times before posting ;-), but couldn't figure out
the correct answer.
I also believe that implementing JCR-247 is by no means a trivial task.
(Marcel, what do you think?) Thus even if JCR-247 was required by JSR
170, I think it would make sense to release 1.0 (or 0.9) without full
XPath support to make the release happen. There aren't that many (if
any!) RDBMs that support the full SQL standard...
Sure, but this doesn't mean that you should take them as good examples :-).
cheers,
./alex
--
.w( the_mindstorm )p.
BR,
Jukka Zitting
