it.unibz.inf.ontop.model.term.impl

Class RDFLiteralConstantImpl

java.lang.Object

it.unibz.inf.ontop.model.term.impl.AbstractNonFunctionalTerm

it.unibz.inf.ontop.model.term.impl.AbstractNonNullConstant

it.unibz.inf.ontop.model.term.impl.RDFLiteralConstantImpl

All Implemented Interfaces:

Constant, GroundTerm, ImmutableTerm, NonFunctionalTerm, NonNullConstant, NonVariableTerm, RDFConstant, RDFLiteralConstant, VariableOrGroundTerm

public class RDFLiteralConstantImpl
extends AbstractNonNullConstant
implements RDFLiteralConstant

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RDFLiteralConstantImpl(String value, RDFDatatype type) The default constructor.
protected	RDFLiteralConstantImpl(String value, String language, TypeFactory typeFactory)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
IncrementalEvaluation	evaluateStrictEq(ImmutableTerm otherTerm, VariableNullability variableNullability) Strict equality: require to have the same lexical value and the same datatype To be distinguished from https://www.w3.org/TR/sparql11-query/#func-RDFterm-equal (which returns NULL instead of FALSE for two different literals)
RDFDatatype	getType()
String	getValue() Returns the lexical string of this constant.
Stream<Variable>	getVariableStream()
int	hashCode()
boolean	isGround()
String	toString()

Methods inherited from class it.unibz.inf.ontop.model.term.impl.AbstractNonNullConstant

evaluateIsNotNull, isNullable

Methods inherited from class it.unibz.inf.ontop.model.term.impl.AbstractNonFunctionalTerm

simplify, simplify

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

getOptionalType, inferType, isNull

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

isDeterministic

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

evaluateIsNotNull, isNullable, simplify, simplify

Constructor Detail

RDFLiteralConstantImpl

protected RDFLiteralConstantImpl(@Nonnull
                                 String value,
                                 @Nonnull
                                 RDFDatatype type)

The default constructor.

Parameters:

value - the constant value.

type - the constant type.

RDFLiteralConstantImpl

protected RDFLiteralConstantImpl(@Nonnull
                                 String value,
                                 @Nonnull
                                 String language,
                                 TypeFactory typeFactory)

Method Detail

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isGround

public boolean isGround()

Specified by:

isGround in interface ImmutableTerm

getVariableStream

public Stream<Variable> getVariableStream()

Specified by:

getVariableStream in interface ImmutableTerm

evaluateStrictEq

public IncrementalEvaluation evaluateStrictEq(ImmutableTerm otherTerm,
                                              VariableNullability variableNullability)

Strict equality: require to have the same lexical value and the same datatype To be distinguished from https://www.w3.org/TR/sparql11-query/#func-RDFterm-equal (which returns NULL instead of FALSE for two different literals)

Specified by:

evaluateStrictEq in interface ImmutableTerm

getValue

public String getValue()

Description copied from interface: RDFLiteralConstant

Returns the lexical string of this constant.

Specified by:

getValue in interface Constant

Specified by:

getValue in interface RDFLiteralConstant

getType

public RDFDatatype getType()

Specified by:

getType in interface NonNullConstant

Specified by:

getType in interface RDFConstant

Specified by:

getType in interface RDFLiteralConstant

toString

public String toString()

Overrides:

toString in class Object