Package org.apache.jena.sparql.function.scripting

Class NV

java.lang.Object

org.apache.jena.sparql.function.scripting.NV

All Implemented Interfaces:

RDFJS

public class NV
extends java.lang.Object
implements RDFJS

General representation of an NodeValue for JavaScript and other scripting languages used to write SPARQL custom functions. Class NV provides access to all the details of a NodeValue for cases where translation to native types isn't enough.

Conversion is to native types where possible, otherwise NV. NV.toString of a URI returns the uri as a string so NV works naturally in Java/JavaScript.

See Also:

fromNodeValue(org.apache.jena.sparql.expr.NodeValue), toNodeValue(java.lang.Object), RDFTerm2Json, for one way conversion JSON.

Constructor Summary

Constructors

Constructor	Description
NV(NodeValue nv)

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object obj)
static java.lang.Object	fromNodeValue(NodeValue nv)	Map an ARQ NodeValue to java/GraalVM representation of a JavaScript object.
java.lang.String	getDatatype()
java.lang.String	getDT()
java.lang.String	getLabel()
java.lang.String	getLang()
java.lang.String	getLanguage()
java.lang.String	getLex()
java.lang.String	getTermType()
java.lang.String	getUri()
java.lang.String	getValue()
int	hashCode()
boolean	isBlank()
boolean	isLiteral()
boolean	isNumber()
boolean	isTripleTerm()
boolean	isURI()
NodeValue	nv()
static NodeValue	toNodeValue(java.lang.Object r)	Map a java/GraalVM representation of a JavaScript object to an ARQ NodeValue.
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NV

public NV(NodeValue nv)

Method Detail

fromNodeValue

public static java.lang.Object fromNodeValue(NodeValue nv)

Map an ARQ NodeValue to java/GraalVM representation of a JavaScript object. Native JavaScript types supported are null, string, number and boolean. Otherwise a NV is returned.

toNodeValue

public static NodeValue toNodeValue(java.lang.Object r)

Map a java/GraalVM representation of a JavaScript object to an ARQ NodeValue. Identified types are null, string, number and boolean and also NV returned by the JavaScript code.

isURI

public boolean isURI()

isBlank

public boolean isBlank()

isNumber

public boolean isNumber()

isLiteral

public boolean isLiteral()

isTripleTerm

public boolean isTripleTerm()

getTermType

public java.lang.String getTermType()

Specified by:

getTermType in interface RDFJS

getValue

public java.lang.String getValue()

Specified by:

getValue in interface RDFJS

getLabel

public java.lang.String getLabel()

getDT

public java.lang.String getDT()

getDatatype

public java.lang.String getDatatype()

getLanguage

public java.lang.String getLanguage()

getLang

public java.lang.String getLang()

getLex

public java.lang.String getLex()

getUri

public java.lang.String getUri()

nv

public NodeValue nv()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object