question: removes all registered databases , even built in ones . useful for forcing a particular database implementation concode_field_sep DatabaseFactory instance concode_elem_sep Logger log concode_elem_sep Map<String,SortedSet<Database>> internalDatabases concode_elem_sep Map<String,SortedSet<Database>> implementedDatabases concode_field_sep Database findCorrectDatabaseImplementation concode_elem_sep int compare concode_elem_sep List<Database> getInternalDatabases concode_elem_sep Database getDatabase concode_elem_sep List<Database> getImplementedDatabases concode_elem_sep DatabaseConnection openConnection concode_elem_sep DatabaseConnection openConnection concode_elem_sep void reset concode_elem_sep DatabaseFactory getInstance concode_elem_sep Database openDatabase concode_elem_sep Database openDatabase concode_elem_sep String findDefaultDriver concode_elem_sep void setInstance concode_elem_sep void register
target: void function ( ) { implementedDatabases . clear ( ) ; }