Hi, iapilgrim wrote: > I want to use jcr:deref. In JSR spec, > For example, suppose there is a property of type REFERENCE called > myapp:author which refers to a node representing the author of this > document. A query expression to find the person’s last name property would > be: > /jcr:root/myapp:myDoc/ jcr:deref(@myapp:author, 'myapp:person')/address > The dereference expression above evaluates to one or more nodes which has > the name myapp:person. Subsequently a child node of each, representing the > person’s address, is selected. > My questions: > + I don't see where to query person's last name?
I guess that's an error in the spec. to get the last name you'd have to run through the result nodes and get the last name property manually. > + It is not clear what will be return Doc or User? the query returns address nodes. > + Do I need to have strong reference ( oppose to weak reference that is > referred by path) jackrabbit currently only supports strong references, though it will eventually support also weak references as specified in JSR 283. > In my application: > my entry have a property "author" that refer to a user node (similar to spec > example) but when query like this > //blogsystem/posts/entry_2/jcr:deref(@author,'*') > --> no error and no results make sure the user nodes are referenceable and @author is a reference property. > and one more question: > Which JR version support predicate with jcr:deref? none, this is not yet implemented. regards marcel > I have searched the mailling list but found no answers so I need your help > Thanks and regards, > Van >
