Module org.apache.jena.arq

Package org.apache.jena.sparql.expr.nodevalue

Class NodeValueOps

java.lang.Object

org.apache.jena.sparql.expr.nodevalue.NodeValueOps

public class NodeValueOps
extends Object

Operations relating to NodeValues.

• The code parts of arithmetic operations on NodeValues.
• Library code such as Argument testing

This class is not considered to be part of the ARQ API.

Constructor Summary

Constructors

Constructor	Description
NodeValueOps()

Method Summary

Modifier and Type	Method	Description
static NodeValue	additionNV(NodeValue nv1, NodeValue nv2)	Add two NodeValues, with all the extra datatypes and extensions supported.
static org.apache.jena.graph.Node	checkAndGetStringLiteral(String label, NodeValue nv)	check and get a string (may be a simple literal, literal with language tag or an XSD string).
static void	checkTwoArgumentStringLiterals(String label, NodeValue arg1, NodeValue arg2)	Check for string operations with primary first arg and second arg (e.g.
static NodeValue	divisionNV(NodeValue nv1, NodeValue nv2)	Divide two NodeValues, with all the extra datatypes and extensions supported.
static NodeValue	multiplicationNV(NodeValue nv1, NodeValue nv2)	Multiple two NodeValues, with all the extra datatypes and extensions supported.
static NodeValue	subtractionNV(NodeValue nv1, NodeValue nv2)	Subtract two NodeValues, with all the extra datatypes and extensions supported.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NodeValueOps

public NodeValueOps()

Method Details

additionNV

public static NodeValue additionNV(NodeValue nv1,
 NodeValue nv2)

Add two NodeValues, with all the extra datatypes and extensions supported.

subtractionNV

public static NodeValue subtractionNV(NodeValue nv1,
 NodeValue nv2)

Subtract two NodeValues, with all the extra datatypes and extensions supported.

multiplicationNV

public static NodeValue multiplicationNV(NodeValue nv1,
 NodeValue nv2)

Multiple two NodeValues, with all the extra datatypes and extensions supported.

divisionNV

public static NodeValue divisionNV(NodeValue nv1,
 NodeValue nv2)

Divide two NodeValues, with all the extra datatypes and extensions supported.

checkAndGetStringLiteral

public static org.apache.jena.graph.Node checkAndGetStringLiteral(String label,
 NodeValue nv)

check and get a string (may be a simple literal, literal with language tag or an XSD string).

checkTwoArgumentStringLiterals

public static void checkTwoArgumentStringLiterals(String label,
 NodeValue arg1,
 NodeValue arg2)

Check for string operations with primary first arg and second arg (e.g. CONTAINS). The arguments are not used in the same way and the check operation is not symmetric.

• "abc"@en is compatible with "abc"
• "abc" is NOT compatible with "abc"@en