Class IntegerCastFunction
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.evaluation.function.xsd.CastFunction
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- org.eclipse.rdf4j.query.algebra.evaluation.function.xsd.IntegerCastFunction
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- All Implemented Interfaces:
Function
- Direct Known Subclasses:
ByteCast,IntCast,IntegerCast,LongCast,NegativeIntegerCast,NonNegativeIntegerCast,NonPositiveIntegerCast,PositiveIntegerCast,ShortCast,UnsignedByteCast,UnsignedIntCast,UnsignedLongCast,UnsignedShortCast
public abstract class IntegerCastFunction extends CastFunction
Abstract superclass forCastFunctions that cast their arguments to an xsd:integer or one of its derived types.- Author:
- Jeen Broekstra
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Constructor Summary
Constructors Constructor Description IntegerCastFunction()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected Literalconvert(ValueFactory valueFactory, Value value)Convert the supplied value to a literal of the function output datatype.protected Optional<Literal>createTypedLiteral(ValueFactory vf, boolean booleanValue)create aLiteralwith the specific datatype for the supplied boolean value.protected abstract Optional<Literal>createTypedLiteral(ValueFactory vf, BigInteger integerValue)create aLiteralwith the specific datatype for the suppliedBigIntegervalue.-
Methods inherited from class org.eclipse.rdf4j.query.algebra.evaluation.function.xsd.CastFunction
evaluate, getURI, getXsdDatatype, getXsdName, isValidForDatatype, typeError
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Method Detail
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convert
protected Literal convert(ValueFactory valueFactory, Value value) throws ValueExprEvaluationException
Description copied from class:CastFunctionConvert the supplied value to a literal of the function output datatype.- Specified by:
convertin classCastFunction- Parameters:
valueFactory- the valueFactory to usevalue- a value that is not a string-typed literal, and not a literal of the same datatype as the function output datatype.- Returns:
- a literal value of the function output datatype
- Throws:
ValueExprEvaluationException- if an error occurs in conversion.
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createTypedLiteral
protected abstract Optional<Literal> createTypedLiteral(ValueFactory vf, BigInteger integerValue) throws ArithmeticException
create aLiteralwith the specific datatype for the suppliedBigIntegervalue.- Parameters:
vf- theValueFactoryto use for creating theLiteralintegerValue- the integer value to use for creating theLiteral- Returns:
- an
Optionalliteral value, which may be empty if the supplied integerValue can not be successfully converted to the specific datatype. - Throws:
ArithmeticException- if an error occurs when attempting to convert the supplied value to a value of the specific datatype.
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createTypedLiteral
protected Optional<Literal> createTypedLiteral(ValueFactory vf, boolean booleanValue)
create aLiteralwith the specific datatype for the supplied boolean value.- Parameters:
vf- theValueFactoryto use for creating theLiteralbooleanValue- the boolean value to use for creating theLiteral- Returns:
- an
Optionalliteral value, which may be empty if the supplied boolean value can not be successfully converted to the specific datatype.
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