def davComplianceClasses(self):
"""
This implementation raises L{NotImplementedError}.
@return: a sequence of strings denoting WebDAV compliance classes. For
example, a DAV level 2 server might return ("1", "2").
"""
unimplemented(self)
def isCollection(self):
"""
See L{IDAVResource.isCollection}.
This implementation raises L{NotImplementedError}; a subclass must
override this method.
"""
unimplemented(self)
def groupMemberships(self):
"""
See L{IDAVPrincipalResource.groupMemberships}.
This implementation raises L{NotImplementedError}. Subclasses must
override this method to provide the group URLs for this resource.
"""
unimplemented(self)
def principalURL(self):
"""
See L{IDAVPrincipalResource.principalURL}.
This implementation raises L{NotImplementedError}. Subclasses must
override this method to provide the principal URL for this resource.
"""
unimplemented(self)
def findChildren(self, depth):
"""
See L{IDAVResource.findChildren}.
This implementation raises returns C{()} if C{depth} is C{0} and this
resource is a collection. Otherwise, it raises L{NotImplementedError};
a subclass must override this method.
"""
assert depth in ("0", "1", "infinity"), "Invalid depth: %s" % (depth,)
if depth == "0" or not self.isCollection():
return ()
else:
unimplemented(self)
