Who/what creates the identifier of an entity instance?

[bic-org-uk]

Who/what creates the identifier of an entity instance?

[franciscave]

An alternative would be to explain in the note that entity identifiers are always mandatory, but that when they are included in requests to create a new entity they may be ignored by the server.

[colinparkeruk]

Conversely, for the recent sample application for the PlugFest, the identifier was optional when creating a patron. The idea was that this would cater for the situation where new barcoded borrower cards were available at the kiosk and also for when they were not (and the kiosk could then print a receipt containing a barcode to be used temporarily).

[anthonywhitford]

I think the patron and item entities are exceptional cases. Things like
loans and reservations have identifier elements, but I don't think there is
the perception that anything other than the LMS would allocate these. They
are therefore internal unique identifiers defined by the lms. For
consistency we could state this is the case for all identifier elements,
and if there is something like a barcode needed, this could go in a
different element perhaps with a type qualifier since academic libraries
sometimes use the student number as a logical identifier instead of a
barcode. Eg institutional-identifier.
On 14 Jan 2016 21:40, "colinparkeruk" [email protected] wrote:

Conversely, for the recent sample application for the PlugFest, the
identifier was optional when creating a patron. The idea was that this
would cater for the situation where new barcoded borrower cards were
available at the kiosk and also for when they were not (and the kiosk could
then print a receipt containing a barcode to be used temporarily).

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[franciscave]

Have we resolved this by my addition of Note [4] in the LCF v1.0.1 spec? If so, I shall add this Note to the XML entity binding spec and we can modify the schemas to make the identifier element non-mandatory (so that it can be used to validate the payload when creating a new entity).

[franciscave]

At the Technical Panel meeting on 28 June it was agreed that the changes are satisfactory. The XML schema should be changed to allow the identifier to be omitted when creating a new instance of the entity.

[anthonywhitford]

The above amendment to the entities with the "identifier" element has been made under issue 20.