def getStatements(self, subject = None, predicate = None, object = None,
objecttype=None,context=None, asQuad=True, hints=None):
if not self.findCompatibleStatements:
return super(RDFSSchema, self).getStatements(subject,
predicate,object,objecttype,context, asQuad, hints)
if predicate in self.typePreds:
submap = self.currentSubTypes
test = object
pos = 3
ranges = set()
domains = set()
else:
submap = self.currentSubProperties
test = predicate
pos = 2
ranges = domains = ()
statements = []
changed = 0
#note: if `test` is None we will retrieve non-entailed statements
#to get all supertypes or superproperties, you need to explicitly query
for compatible in submap.get(test, [test]):
if pos == 2:
predicate = compatible
elif pos == 3:
object = compatible
#handle subprops
#ranges += self.rangeProps.get(object, [])
#domains += self.domainsProps.get(object, [])
#XXX handle hints intelligently, see super() implementation
moreStatements = super(RDFSSchema, self).getStatements(subject,
predicate,object,objecttype,context, asQuad)
if moreStatements:
changed += 1
statements.extend(moreStatements)
#XXX not yet implemented:
#all props and subprops that have a domain of requested type or subtype
if subject is not None:
drhints={'exist':1}
else:
drhints=None
for prop in domains:
moreStatements = super(RDFSSchema, self).getStatements(subject,
prop,scope=context, hints=drhints)
if moreStatements:
changed += 1
#reconstruct rdf:type statement
statements.extend( set(Statement(s[0],predicate, object,
OBJECT_TYPE_RESOURCE, s[4]) for s in moreStatements) )
#all props and subprops that have a range of requested type or subtype
for prop in ranges:
moreStatements = super(RDFSSchema, self).getStatements(predicate=prop,
object=subject, objecttype=OBJECT_TYPE_RESOURCE,
scope=context, hint=drhints)
if moreStatements:
changed += 1
#reconstruct rdf:type statement
statements.extend( set(Statement(s[2],predicate, object,
OBJECT_TYPE_RESOURCE, s[4]) for s in moreStatements) )
if changed > 1 or hints:
statements.sort()
return base.removeDupStatementsFromSortedList(statements, asQuad, **(hints or {}))
else:
return statements
