Proposal: create a query mechanism which specifies templates for the response
Revision as of 03:15, 9 January 2011 by Lmckenzi
- If the receiver of a query is some sort of archive (e.g. an EHR, or a Datamart) which could potentially respond to a query using a response structure that is extremely rich in detail: how does one [the party that sends the query] "limit" the response to a certain more minimalistic subset?
- The use-case was raised in a SOA environment using Query-By-Example
- This proposal seeks to add a new attribute (see discussion section for the class in which it should be added) of type SET<II> to allow the query placer to specify a list of templateIds the response model should be compliant with.
- Different interaction for each response-template: The current dynamic model requires that each and every Trigger Event (and hence: Interaction) have exactly one static response model. Thus, if we had 7 level-of-richness templates for a response model, we'd have to define 7 query interactions [all with the exact same static model] and 7 response interactions.
- Query parameter to specify templates:
- See Nature of ParameterItem - it clashes with the nature of PatremeterItem
- It doesn't offer a solution for Query-By-Example (QBE) scenarios, where the query model is comprised of Acts with isCriterionInd set to true. QBE doesn't have query paremeters.
- See Harmonization: add QuerySpec.responseTemplateId attribute, this effectively reopens that old discussion.