org.cyberborean.rdfbeans.datatype

Class DefaultDatatypeMapper

java.lang.Object

org.cyberborean.rdfbeans.datatype.DefaultDatatypeMapper

All Implemented Interfaces:

DatatypeMapper

public class DefaultDatatypeMapper
extends Object
implements DatatypeMapper

Default DatatypeMapper implementation based on XML-Schema data types for representation of Java primitive wrapper classes and dates as typed RDF literals.

• Instances of String are represented as plain (untyped) RDF literals.
• Instances of Boolean, Integer, Float, Double, Byte, Long and Short are represented as RDF literals with corresponding XML-Schema datatypes.
• Instances of Date are represented as RDF literals of xsd:dateTime type, serialized into ISO8601 date/time format.

Constructor Summary

Constructors

Constructor and Description
DefaultDatatypeMapper()

Method Summary

Modifier and Type	Method and Description
static org.eclipse.rdf4j.model.IRI	getDatatypeURI(Class<?> c)
Object	getJavaObject(org.eclipse.rdf4j.model.Literal l) Returns a Java object reconstructed from the given RDF literal value.
org.eclipse.rdf4j.model.Literal	getRDFValue(Object value, org.eclipse.rdf4j.model.ValueFactory vf) Returns an RDF literal representation of the given Java object.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultDatatypeMapper

public DefaultDatatypeMapper()

Method Detail

getDatatypeURI

public static org.eclipse.rdf4j.model.IRI getDatatypeURI(Class<?> c)

getJavaObject

public Object getJavaObject(org.eclipse.rdf4j.model.Literal l)

Description copied from interface: DatatypeMapper

Returns a Java object reconstructed from the given RDF literal value.

Specified by:

getJavaObject in interface DatatypeMapper

Parameters:

l - RDF plain or typed literal

Returns:

Java object or null if the literal datatype is not supported.

getRDFValue

public org.eclipse.rdf4j.model.Literal getRDFValue(Object value,
                                                   org.eclipse.rdf4j.model.ValueFactory vf)

Description copied from interface: DatatypeMapper

Returns an RDF literal representation of the given Java object.

Specified by:

getRDFValue in interface DatatypeMapper

Parameters:

value - Java object

Returns:

RDF plain or typed literal, or null if the object class is not supported