To support a unified "Projects:" query across all applications, a future diff is going to add a set of "Edge Logic" capabilities to PolicyAwareQuery which write the required SELECT, JOIN, WHERE, HAVING and GROUP clauses for you.
With the addition of "Edge Logic", we'll have three systems which may need to build components of query claues: ordering/paging, customfields/applicationsearch, and edge logic.
For most clauses, queries don't currently call into the parent explicitly to get default components. I want to move more query construction logic up the class tree so it can be shared.
For most methods, this isn't a problem, but many subclasses define a buildWhereClause(). Make all such definitions protected and consistent.
This causes no behavioral changes.