If you mean these classes defined in class editor defined in .../xwiki/bin/view/XWiki/XWikiClasses AFAIK these doesn't support extension.
So, you need to use composition instead. Add object with type of the common class, and for few other documents add another object with type of "extended" class. You will need to adjust class sheet object to display fields of other tyepe of objects also (look at http://extensions.xwiki.org/xwiki/bin/view/Extension/Sheet+Module ) Valdis > hi, > > the Class I mean is XClass, which is used in Wiki pages. > > thanks, > B.R./ZZH > > > 2014/1/5 Zhihua Zheng <zhihu...@gmail.com> > > > hi all, > > > > I have couple of classes they are similar, most of them are the same, but > > some small parts are different. So that I want to use a arch that there is > > a common class holds all the common properties, and the real classes are > > inherited from the common. > > But how to achieve that? > > > > thanks! > > > _______________________________________________ > users mailing list > users@xwiki.org > http://lists.xwiki.org/mailman/listinfo/users _______________________________________________ users mailing list users@xwiki.org http://lists.xwiki.org/mailman/listinfo/users