org.semanticweb.kaon2.api.rules
Interface Predicate

All Known Subinterfaces:

AnnotationProperty, DataAll, DataCardinality, DataHasValue, DataNot, DataOneOf, DataProperty, DataRange, DataSome, Datatype, Description, NonOWLPredicate, ObjectAll, ObjectAnd, ObjectCardinality, ObjectHasValue, ObjectNot, ObjectOneOf, ObjectOr, ObjectProperty, ObjectSome, OWLClass

All Known Implementing Classes:

Query.UntypedPredicate

public interface Predicate

Represents a predicate in the program.

Method Summary

java.lang.Object	accept(KAON2Visitor visitor) Accepts a visitor for this object.
int	getArity() Returns the arity of the predicate.
void	toString(java.lang.StringBuffer buffer, Namespaces namespaces) Writes this entity to the supplied string buffer.

Method Detail

getArity

int getArity()

Returns the arity of the predicate.

Returns:

the arity of the predicate

toString

void toString(java.lang.StringBuffer buffer,
              Namespaces namespaces)

Writes this entity to the supplied string buffer.

Parameters:

buffer - the buffer

namespaces - the namespaces object

accept

java.lang.Object accept(KAON2Visitor visitor)

Accepts a visitor for this object.

Parameters:

visitor - the visitor for this object

Returns:

the return value of the visitor (can be null)