HQLPARSER-28 Simplifying IS (NOT) NULL queries by letting the DSL implementation retrieve null tokens
HQLPARSER-28 Making MapBasedEntityNamesResolver more convenient to use
HQLPARSER-28 Deferring resolution of actual classes in order to support Lucene queries on non-class based entities
HQLPARSER-28 Preparing creation of parser delegates for queries on non-class entities
HQLPARSER-28 Providing delegate for queries on non-class based entities; Establishing and using FieldBridgeProvider contract to obtain field bridges for non-class based entities