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Description

Details

Decisions

1Assume flat attributes (no complex data types) but data could be stored as json object in SPI impl. for convenience/PoC

2SPI Implementation NOT using Model (service) current ENM SPI does!

3Are we going to have XPath/query builder?
  • We should decide based on what the users want to use/is easy to use
  • We don't want a query builder that eventually mimics XPaths functionality, use what is defined already XPATH sa a based but maybe supplement with a xpath-builder

4

Having a fluent interface in my opinion would be way more intuitive and practical. E.g.

//AND of two restrictions

Restriction and(Restriction firstRestriction,  Restriction secondRestriction)

//OR of two restrictions

Restriction or(Restriction firstRestriction,  Restriction secondRestriction)

//NOT of a restriction

Restriction not(Restriction restriction)

This will give any user of the API an intuitive way to build a complex query and the developer of the API a tree to navigate and translate to SQL (or any other query language). A developer could do something the likes of myQuery.setRestriction(restriction1.and(restrcition2).and(restriction3))



5When do we get attributes?Maybe we dont need this because we dont have complex data attributes
6Should we use the name node or fragment?

7Do we want to split the interface? 

Maybe we could just have a 

3 Alternatives 

  1. all in one interface
  2. Limited number of interfaces e.g Data Objects/ Data Persistence/Query
  3. Very fine grained (see below)

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