This document attempts to summerize discussion on gnucash-devel about
generic objects in the engine.  This discussion took place between
2001-11-17 and ... (in case you want to find the archives) and the
subject was "GncBusiness v. GNCSession".

One part of the problem, explained:

> > That is the whole point.  The problem is that there is no generic
> > hooks into the GNCSession to store the GNCEntityTable for each
> > object-type; there is no hook in the GNCBook to store the object
> > tables (list of existing Customers, Vendors, Invoices, etc); there
> > is no hook in the Backend structure to load or save these objects;
> > there is no hook in the Query structure to search these objects.