owlapy.model.OWLRestriction

class owlapy.model.OWLRestriction

Bases: owlapy.model.OWLAnonymousClassExpression

Represents a Object Property Restriction or Data Property Restriction in the OWL 2 specification.

Methods

get_nnf	Gets the negation normal form of the complement of this expression.
get_object_complement_of	Gets the object complement of this class expression
get_property	returns: property being restricted
is_anonymous
is_data_restriction	Determines if this is a data restriction
is_object_restriction	Determines if this is an object restriction
is_owl_nothing	Determines if this expression is the built in class owl:Nothing.
is_owl_thing	Determines if this expression is the built in class owl:Thing.

get_nnf() → owlapy.model.OWLClassExpression

Gets the negation normal form of the complement of this expression.

Returns:

A expression that represents the NNF of the complement of this expression.

get_object_complement_of() → owlapy.model.OWLObjectComplementOf

Gets the object complement of this class expression

Returns:

A class expression that is the complement of this class expression.

abstract get_property() → owlapy.model.OWLPropertyExpression

Returns:

property being restricted

is_anonymous() → bool

is_data_restriction() → bool

Determines if this is a data restriction

Returns:

True if this is a data restriction

is_object_restriction() → bool

Determines if this is an object restriction

Returns:

True if this is an object restriction

is_owl_nothing() → bool

Determines if this expression is the built in class owl:Nothing. This method does not determine if the class is equivalent to owl:Nothing.

is_owl_thing() → bool

Determines if this expression is the built in class owl:Thing. This method does not determine if the class is equivalent to owl:Thing.

Returns:

True if this expression is owl:Thing