One more idea on relationships

["Vambenepe, William N" <vbp@hp.com>]

Here is a potential problem:

I have an EPR to a resource foo. I ask resource foo to send me the
"containment" relationships it's involved in. It returns one
relationship to me. This relationship contains an EPR pointing to the
container and an EPR pointing to the containee. The trouble is, neither
of these EPR matches the EPR I used to contact foo. Since there could be
more than one EPR per resource, this is perfectly possible. How do I
know whether foo is the container or the containee?

Retrieving the ResourceId may help, but even this is not guaranteed to
succeed. And it might require more round trips.

I suggest that we create an optional "self" attribute of type boolean
that can be placed on a participant in a relationship. By placing it on
a participant, a resource that sends the relationship indicates that it
is the participant in question. Obviously, if the relationship is
retrieved from someone who is not a participant in the relationship, the
"self" attribute would not appear.

Regards,

William