Necessary Maintenance #17008
FindOneP: document what happens when asking for the "B" pointer to an unassociated "A"
Description
The documentation at Inter-Product References seems not to mention what is the result of the query:
art::FindOneP<B> query(As, event, label);
art::Ptr<B> result = query.at(i);As[i] is not associated with any B.
It might be that result will be an invalid pointer... if so, it needs to be documented.
History
#1 Updated by Gianluca Petrillo over 3 years ago
... aaand I forgot a fundamental letter
art::FindOneP<B> query(As, event, label);
art::Ptr<B> result = query.at(i);
(people who can may fix the issue description)
#2 Updated by Kyle Knoepfel over 3 years ago
- Description updated (diff)
#3 Updated by Kyle Knoepfel over 3 years ago
- Status changed from New to Accepted
- Assignee set to Christopher Green
- Estimated time set to 1.00 h
#4 Updated by Christopher Green over 3 years ago
- Status changed from Accepted to Resolved
The Inter-Product_References documentation has been clarified slightly: specifically at Inter-Product_References and Inter-Product_References. The document may be found from the main Wiki page under the heading, Data products and ROOT dictionaries, labelled, "Inter-Product References (Assns, FindOne{,P}, FindMany{,P})." Please let us know if the documentation remains insufficient to answer any questions.
#5 Updated by Gianluca Petrillo over 3 years ago
It seems to miss the information about art::Ptr<B> from art::FindManyP, when the former is not resolvable.
I suppose the description would be the same as for art::FindOneP.
#6 Updated by Kyle Knoepfel almost 3 years ago
- Status changed from Resolved to Closed