Package org.apache.juneau.marshall.jena

Class NQuadsSerializer

java.lang.Object

org.apache.juneau.marshall.Context

org.apache.juneau.marshall.MarshallingContextable

org.apache.juneau.marshall.MarshallingTraverseContext

org.apache.juneau.marshall.serializer.Serializer

org.apache.juneau.marshall.serializer.WriterSerializer

org.apache.juneau.marshall.jena.RdfSerializer

org.apache.juneau.marshall.jena.NQuadsSerializer

All Implemented Interfaces:

Function<Object,String>, ThrowingFunction<Object,String>, RdfMetaProvider, XmlMetaProvider

public class NQuadsSerializer
extends RdfSerializer

Subclass of RdfSerializer for serializing POJOs to N-Quads format.

Produces RDF quads (subject, predicate, object, graph) in N-Quads notation. Like N-Triples but with an optional fourth element for the named graph. Useful for RDF datasets.

Examples:

// Serialize a bean to N-Quads string. Person person = new Person("Alice", 30); String nQuads = NQuadsSerializer.DEFAULT.write(person);

// Or use the NQuads marshaller for convenience. String nQuads = NQuads.of(person);

// Custom serializer with swaps. NQuadsSerializer s = NQuadsSerializer.create().swaps(DateSwap.class).build(); String nQuads = s.write(bean);

Example output (bean with name/age):

<...> <.../name> "Alice" <...> . <...> <.../age> "30"^^<http://www.w3.org/2001/XMLSchema#int> <...> .

Complex (nested address + array):

<...> <.../name> "Alice" <graph> . <...> <.../address> <.../address> <graph> . <.../address> <.../street> "123 Main St" <graph> . <.../address> <.../city> "Boston" <graph> . <.../address> <.../state> "MA" <graph> .

Notes:

• This class is thread safe and reusable.

See Also:

• {doc jmr.RdfDetails}

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.juneau.marshall.jena.RdfSerializer

RdfSerializer.Builder<SELF extends RdfSerializer.Builder<SELF>>, RdfSerializer.DefaultBuilder

Nested classes/interfaces inherited from class org.apache.juneau.marshall.serializer.Serializer

Serializer.Null

Field Summary

Fields

Modifier and Type	Field	Description
static final NQuadsSerializer	DEFAULT	Default N-Quads serializer, all default settings.

Fields inherited from class org.apache.juneau.marshall.jena.RdfSerializer

addBeanTypesRdf, addLiteralTypes, addRootProperty, autoDetectNamespaces, collectionFormat, juneauBpNs, juneauNs, language, looseCollections, useXmlNamespaces

Fields inherited from class org.apache.juneau.marshall.serializer.WriterSerializer

maxIndent, quoteChar, quoteCharOverride, useWhitespace

Fields inherited from class org.apache.juneau.marshall.serializer.Serializer

accept, addBeanTypes, addRootType, keepNullProperties, listener, nonDefault, produces, sortCollections, sortMaps, trimEmptyCollections, trimEmptyMaps, trimStrings

Fields inherited from class org.apache.juneau.marshall.MarshallingContextable

marshallingContext

Fields inherited from class org.apache.juneau.marshall.Context

CONTEXT_APPLY_FILTER

Constructor Summary

Constructors

Constructor	Description
NQuadsSerializer(RdfSerializer.Builder<?> builder)	Constructor.

Method Summary

Modifier and Type	Method	Description
static RdfSerializer.Builder<?>	create()	Creates a new builder for this object.

Methods inherited from class org.apache.juneau.marshall.jena.RdfSerializer

copy, createSession, getCollectionFormat, getJenaSettings, getJuneauBpNs, getJuneauNs, getLanguage, getNamespaces, getRdfBeanMeta, getRdfBeanPropertyMeta, getRdfClassMeta, getSession, getXmlBeanMeta, getXmlBeanPropertyMeta, getXmlClassMeta, isAddBeanTypes, isAddLiteralTypes, isAddRootProp, isAutoDetectNamespaces, isLooseCollections, isUseXmlNamespaces, properties

Methods inherited from class org.apache.juneau.marshall.serializer.WriterSerializer

applyThrows, getMaxIndent, getQuoteChar, getStreamCharset, isUseWhitespace, isWriterSerializer, println, quoteChar, toString, write

Methods inherited from class org.apache.juneau.marshall.serializer.Serializer

createSerializerBuilder, doWrite, forEachAcceptMediaType, getListener, getMediaTypeRanges, getPrimaryMediaType, getResponseContentType, getResponseHeaders, getUriContext, getUriRelativity, getUriResolution, isAddRootType, isKeepNullProperties, isNonDefault, isSortCollections, isSortMaps, isTrimEmptyCollections, isTrimEmptyMaps, isTrimStrings, write, writeToString

Methods inherited from class org.apache.juneau.marshall.MarshallingTraverseContext

getDetectRecursions, getIgnoreRecursions, getInitialDepth, getMaxDepth, isDetectRecursions, isIgnoreRecursions, shouldDetectRecursions

Methods inherited from class org.apache.juneau.marshall.MarshallingContextable

getDurationFormat, getMarshallingContext, getPeriodFormat

Methods inherited from class org.apache.juneau.marshall.Context

createBuilder, getAnnotationProvider, init, isDebug, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface org.apache.juneau.commons.function.ThrowingFunction

apply

Field Details

DEFAULT

public static final NQuadsSerializer DEFAULT

Default N-Quads serializer, all default settings.

Constructor Details

NQuadsSerializer

public NQuadsSerializer(RdfSerializer.Builder<?> builder)

Constructor.

Parameters:

builder - The builder for this object.
Cannot be null.

Method Details

create

public static RdfSerializer.Builder<?> create()

Creates a new builder for this object.

Returns:

A new builder.