[Zope] question about searching on subobjects

[Junk]

hi,

i have objects and subobjects (in classes) that i want to index.

let's say i have this structure :

folderA
	itemA
		sub
	itemB
		sub
	itemC
		sub
	itemD
		sub

i want to get some propertie from "itemX" if some propertie of "sub" equals
something.

to make it more clear (propertis are enclosed in parenthesis)

books
	bookname1 (description)
		review (author)
	bookname2 (description)
		review (author)
	bookname3 (description)
		review (author)
	bookname4 (description)
		review (author)

i want to get the "description" of the book whose reviews's author is
"author" ? hu... clear ?

thanx,

JUNK