#11 Add an extension to indicate the max. length of strings in an AbstractSetStateOperationDescriptor

[Stefan Schlichting]

Currently, there is no possibility to indicate for a Service Provider the maximum allowed string length for attributes or elements that are modified by an "SetStateOperation" (AbstractSetStateOperationDescriptor).

Proposal: Add an extension to indicate the maximum length for a modifiable Data element.

[Stefan Schlichting]

Allow to constraint character sets allowed for strings.

[David]

Some points to consider:

• Modifiable data is a broken concept in BICEPS as it relies on XPath processing (see [#157])
• Provider should be able to accept any UTF-8 input no matter what characters are supported by legacy systems

[David]

We agreed on adding this attribute in a revision of BICEPS.

[David]

Re-evaluate if this concept is still feasible. Modifiable Data is conceptually brittle as it requires internal APIs to reveal the use of XML under the hood.

[Björn Andersen]

Ticket moved from /p/opensdc/ieee11073-10207/121/