it.unibz.inf.ontop.model.term

Interface Constant

All Superinterfaces:

GroundTerm, ImmutableTerm, NonFunctionalTerm, NonVariableTerm, VariableOrGroundTerm

All Known Subinterfaces:

BNode, DBConstant, IRIConstant, NonNullConstant, ObjectConstant, RDFConstant, RDFLiteralConstant, RDFTermTypeConstant

All Known Implementing Classes:

BNodeConstantImpl, DBConstantImpl, IRIConstantImpl, NullConstantImpl, RDFLiteralConstantImpl, RDFTermTypeConstantImpl

public interface Constant
extends NonFunctionalTerm, GroundTerm

This class defines a type of ImmutableTerm in which it has a constant value.

Method Summary

Modifier and Type	Method and Description
Optional<TermType>	getOptionalType() Empty if and only if is null.
String	getValue()
default boolean	isDeterministic()

Methods inherited from interface it.unibz.inf.ontop.model.term.ImmutableTerm

evaluateIsNotNull, evaluateStrictEq, getVariableStream, inferType, isGround, isNull, isNullable, simplify, simplify

Method Detail

getValue

String getValue()

getOptionalType

Optional<TermType> getOptionalType()

Empty if and only if is null.

isDeterministic

default boolean isDeterministic()

Specified by:

isDeterministic in interface GroundTerm