WissDB . since Jun 15 . Index . DOCs TOP TOC
This document is to specify the
WissDB Data Layer API
but may later on also contain implementation documentation.
All parts of the Data Layer API that have a name starting with S_ are to be implemented as self-contained methods that, if called, have to have atomic effect on the systemss physical database.
The document contains essentially two parts:
§ Section Data Views is a description of all necessary data views, especially of those that represent business objects.
Each view is described and discussed only in as far as it is not already discussed in D_( WissDB / Design / Data Model ) .
Objects to be stored are metadata, i.e. they are instances of one of these types:
Each of these metadata objects may, or may not, have associated to it a value of type FILE (the so-called NodeValue). NodeValues are to be stored in the knowledge base itself.
§ Section Services describes functionality available as a high level data storage interface on top of which at least the services described in D_( WissDB / Design / The Business Layer ) can easily be implemented.
WissDB . Index . DOCs . TOC