hi,
Thanks for your answer.
Currently I am using a set of classes to represent my data, for display
part they just need to directly show the properties. If I use composit, for
the common part I need to identify if it's common, and there will be some
"if-else" in each of the subclasses.
I just wandering if we can have some auto-load, so that I don't need to use
"if-else" everywhere, and it will be easy to maintain, just like the
inherited class.
2014/1/5 Valdis Vītoliņš <valdis.vitolins(a)odo.lv>
  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 <zhihua25(a)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!
 
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