[Zope] Re: [NEWBIE] Where are application root objects documented?

[Tres Seaver]

d.j.potts at bcs.org.uk wrote:

> Ok I think I get it:  acquisition gets me up to an Application object who's
> ZopeTime is returned.  So by the same reasoning I can get title_and_id,
> ZopeAttributionButton etc.
> 
> Are there classes other than Application that are picked up by acquisition?

Acquisition hooks Python's '__getattr__', so *any* attribute lookup can 
potentially trigger acquisition, which looks "up" at each intervening 
object until it finds one which has the attribute assigned.  Zope's 
standard object types are all "implicit" acquirers, which means they are 
willing to acquire any attribute (nearly);  a few are "explicit", which 
means they only acquire a specific set of attributes.

Tres.
-- 
===============================================================
Tres Seaver                                tseaver at zope.com
Zope Corporation      "Zope Dealers"       http://www.zope.com