org.deri.iris.builtins.datatype
Class ToPlainLiteralBuiltin

java.lang.Object
  org.deri.iris.builtins.AbstractBuiltin
      org.deri.iris.builtins.FunctionalBuiltin
          org.deri.iris.builtins.datatype.ConversionBuiltin
              org.deri.iris.builtins.datatype.ToPlainLiteralBuiltin

All Implemented Interfaces:

Comparable<IAtom>, IAtom, IBuiltinAtom

public class ToPlainLiteralBuiltin
extends ConversionBuiltin

Represents a data type conversion function, which converts supported data type instances to PlainLiteral instances. The following data types are supported:

• String
• All data types for which casting to string is supported

Field Summary

Fields inherited from class org.deri.iris.builtins.AbstractBuiltin

EMPTY_TERM

Constructor Summary

ToPlainLiteralBuiltin(ITerm... terms)
Creates a new instance of this builtin.

Method Summary

protected ITerm	convert(ITerm term) Converts the given supported data type instance to the specific data type
static IPlainLiteral	toPlainLiteral(IStringTerm term) Converts a String term to a PlainLiteral term.
static IPlainLiteral	toPlainLiteral(ITerm term) Converts a constant term to a PlainLiteral term.
static IPlainLiteral	toPlainLiteral(IXMLLiteral term) Converts a XMLLiteral term to a PlainLiteral term.

Methods inherited from class org.deri.iris.builtins.datatype.ConversionBuiltin

computeResult

Methods inherited from class org.deri.iris.builtins.FunctionalBuiltin

evaluateTerms, maxUnknownVariables, testForEquality

Methods inherited from class org.deri.iris.builtins.AbstractBuiltin

compareTo, equals, evaluate, getPredicate, getTuple, hashCode, isBuiltin, isGround, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ToPlainLiteralBuiltin

public ToPlainLiteralBuiltin(ITerm... terms)

Creates a new instance of this builtin.

Parameters:

terms - The term representing the data type instance to be converted.

Method Detail

convert

protected ITerm convert(ITerm term)

Description copied from class: ConversionBuiltin

Converts the given supported data type instance to the specific data type

Specified by:

convert in class ConversionBuiltin

Returns:

The result of the conversion or null if the specified data type is not compatible.

toPlainLiteral

public static IPlainLiteral toPlainLiteral(IXMLLiteral term)

Converts a XMLLiteral term to a PlainLiteral term.

Parameters:

term - The XMLLiteral term to be converted.

Returns:

A new PlainLiteral term representing the result of the conversion.

toPlainLiteral

public static IPlainLiteral toPlainLiteral(IStringTerm term)

Converts a String term to a PlainLiteral term.

Parameters:

term - The String term to be converted.

Returns:

A new PlainLiteral term representing the result of the conversion.

toPlainLiteral

public static IPlainLiteral toPlainLiteral(ITerm term)

Converts a constant term to a PlainLiteral term. For data types other than Text and XMLLiteral, the toCanonicalString method of the given term is used to convert to first convert to a String term and then to a PlainLiteral term.

Parameters:

term - The term to be converted.

Returns:

A new PlainLiteral term representing the result of the conversion, or null if the data type represented by the given term is not supported.