Class IntegerCastFunction

java.lang.Object
org.eclipse.rdf4j.query.algebra.evaluation.function.xsd.CastFunction
org.eclipse.rdf4j.query.algebra.evaluation.function.xsd.IntegerCastFunction
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 for CastFunctions that cast their arguments to an xsd:integer or one of its derived types.
Author:
Jeen Broekstra
  • Constructor Details

    • IntegerCastFunction

      public IntegerCastFunction()
  • Method Details

    • convert

      protected Literal convert(ValueFactory valueFactory, Value value) throws ValueExprEvaluationException
      Description copied from class: CastFunction
      Convert the supplied value to a literal of the function output datatype.
      Specified by:
      convert in class CastFunction
      Parameters:
      valueFactory - the valueFactory to use
      value - 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.
    • createTypedLiteral

      protected abstract Optional<Literal> createTypedLiteral(ValueFactory vf, BigInteger integerValue) throws ArithmeticException
      create a Literal with the specific datatype for the supplied BigInteger value.
      Parameters:
      vf - the ValueFactory to use for creating the Literal
      integerValue - the integer value to use for creating the Literal
      Returns:
      an Optional literal 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.
    • createTypedLiteral

      protected Optional<Literal> createTypedLiteral(ValueFactory vf, boolean booleanValue)
      create a Literal with the specific datatype for the supplied boolean value.
      Parameters:
      vf - the ValueFactory to use for creating the Literal
      booleanValue - the boolean value to use for creating the Literal
      Returns:
      an Optional literal value, which may be empty if the supplied boolean value can not be successfully converted to the specific datatype.