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From: David Jencks <david_jencks@yahoo.com>
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Subject: Re: Schema version number update ?
Date: Wed, 18 Aug 2010 19:52:30 -0700
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IIUC xml schema versioning best practice is to make sure the changes are =
backward compatible, keep the schema namespace the same, and have =
something like a version attribute you bump up.

We are going to have some non-backward compatible changes in the =
environment element for some 3.x version since how we specify =
classloaders has completely changed.  I wonder if this would be a good =
time to carefully reexamine out schemas and use a more recommended =
approach?

cf =
http://www.pluralsight-training.net/community/blogs/tewald/archive/2006/04=
/14/21733.aspx

thanks
david jencks
=20
On Aug 18, 2010, at 6:12 PM, Ivan wrote:

> Comments ?
>=20
> 2010/8/17 chi runhua <chirunhua@gmail.com>
> Agree.  Doc will need updates as well and users might be interested in =
such changes if they plan to migrate from 2.x to 3.0.
>=20
> Jeff=20
>=20
>=20
> On Tue, Aug 17, 2010 at 4:00 PM, Ivan <xhhsld@gmail.com> wrote:
> Hi,
>     We might need to update some schemas, like openejb-jar, tomcat =
might also needed. IMO, we need to update the version number in each =
release when we did changes to the schema files, right ? However, I find =
that geronimo-openejb-2.0.xsd has been existed there for a long time, =
and many changes are done to it, but we never update the schema version =
number.=20
>     Any comment? Thanks !
>=20
> --=20
> Ivan
>=20
>=20
>=20
>=20
> --=20
> Ivan


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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">IIUC =
xml schema versioning best practice is to make sure the changes are =
backward compatible, keep the schema namespace the same, and have =
something like a version attribute you bump up.<div><br></div><div>We =
are going to have some non-backward compatible changes in the =
environment element for some 3.x version since how we specify =
classloaders has completely changed. &nbsp;I wonder if this would be a =
good time to carefully reexamine out schemas and use a more recommended =
approach?</div><div><br></div><div>cf <a =
href=3D"http://www.pluralsight-training.net/community/blogs/tewald/archive=
/2006/04/14/21733.aspx">http://www.pluralsight-training.net/community/blog=
s/tewald/archive/2006/04/14/21733.aspx</a></div><div><br></div><div>thanks=
</div><div>david jencks</div><div>&nbsp;<br><div><div>On Aug 18, 2010, =
at 6:12 PM, Ivan wrote:</div><br =
class=3D"Apple-interchange-newline"><blockquote type=3D"cite">Comments =
?<br><br><div class=3D"gmail_quote">2010/8/17 chi runhua <span =
dir=3D"ltr">&lt;<a =
href=3D"mailto:chirunhua@gmail.com">chirunhua@gmail.com</a>&gt;</span><br>=
<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; =
border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Agree. &nbsp;Doc will need updates as well and users might be interested =
in such changes if they plan to migrate from 2.x to =
3.0.<div><br></div><div>Jeff&nbsp;<div><div></div><div =
class=3D"h5"><br><br><div class=3D"gmail_quote">On Tue, Aug 17, 2010 at =
4:00 PM, Ivan <span dir=3D"ltr">&lt;<a href=3D"mailto:xhhsld@gmail.com" =
target=3D"_blank">xhhsld@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; =
border-left: 1px solid rgb(204, 204, 204); padding-left: =
1ex;">Hi,<br>&nbsp;&nbsp;&nbsp; We might need to update some schemas, =
like openejb-jar, tomcat might also needed. IMO, we need to update the =
version number in each release when we did changes to the schema files, =
right ? However, I find that geronimo-openejb-2.0.xsd has been existed =
there for a long time, and many changes are done to it, but we never =
update the schema version number. <br>


&nbsp;&nbsp;&nbsp; Any comment? Thanks !<br clear=3D"all"><br>-- =
<br><font color=3D"#888888">Ivan<br>
</font></blockquote></div><br></div></div></div>
</blockquote></div><br><br clear=3D"all"><br>-- <br>Ivan<br>
</blockquote></div><br></div></body></html>=

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