Good morning,
If you need some help in testing or development process, I could help
with some hours per month.
I was using the first version.
Juan Antonio
El 2015-12-09 10:15, Ate Douma escribió:
Since early this year the progress and development of Commons SCXML 2.0
has
severely declined because of two major technical hurdles, and
thereafter of
both motivation and lack of time:
- The SCXML XML/XPath datamodel support has been dropped from the final
W3C SCXML 1.0 specification [1], because of too many functional and
semantic
complications and limitation, as well as lack of interest for
implementing it.
The implementation of the XML/XPath datamodel in Commons SCXML has been
problematic for precisely the same reasons.
And not being able to provide such implementation properly by us
(Commons
SCXML) actually has been one (final) argument for dropping it from the
specification...
- The implementation of the Javascript datamodel support based on the
old/outdated Rhino Javascript engine in Java 7 and below, turned out to
be
quite difficult. While it turns out to be much easier and reliable, but
different, with the new Nashorn Javascript engine in Java 8+.
After bringing this first up on the user@ list earlier this week, I now
want to
propose the following major changes to revive the further development
towards
Commons SCXML 2.0:
- drop the support for XML/XPath based datamodel, and instead introduce
a much
easier to implement and support JSON datamodel as alternative, for
all current
Commons SCXML support 'languages': JEXL, Groovy and Javascript.
- bump the minimum Java version to 8 so we can leverage and only need
to support
the Nashorn Javascript engine
The only user response so far on user@ is fully in favor of these
changes,
and both myself and Woonsan Ko are motivated to continue developing and
completing the goals for Commons SCXML 2.0 based on these changes.
If nobody here has strong arguments against the above proposal (and
assuming
lazy consensus otherwise), we would like to start on these changes
shortly,
before the end of the year.
Kind regards,
Ate Douma
Woonsan Ko
[1] http://www.w3.org/TR/2015/REC-scxml-20150901/
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