NQuadsCodec class final

Format definition for the N-Quads RDF serialization format.

N-Quads is a line-based, plain text RDF serialization format defined by the W3C. It is a simplified subset of Turtle, where each line represents exactly one triple statement. N-Quads is designed to be simple to parse and generate.

The format is specified in the RDF 1.1 N-Quads W3C Recommendation.

N-Quads characteristics:

• Each line contains exactly one triple statement
• No abbreviations or prefixes are supported
• Everything is written out explicitly, making it verbose but simple
• All IRIs are enclosed in angle brackets
• The format is line-based, making it easy to process with standard text tools

Example N-Quads document:

<http://example.org/subject> <http://example.org/predicate> <http://example.org/object> .
<http://example.org/subject> <http://example.org/predicate> "Literal value" .
<http://example.org/subject> <http://example.org/predicate> "Value"@en .

Inheritance

• Object
• Codec<RdfDataset, String>
• RdfCodec<RdfDataset>
• RdfDatasetCodec
• NQuadsCodec

Constructors

NQuadsCodec({NQuadsEncoderOptions encoderOptions = const NQuadsEncoderOptions(), NQuadsDecoderOptions decoderOptions = const NQuadsDecoderOptions(), IriTermFactory iriTermFactory = IriTerm.validated})

Creates a new N-Quads format definition

const

Properties

decoder → RdfDatasetDecoder

Returns a decoder configured with the current decoder options

no setter, override

encoder → RdfDatasetEncoder

Returns an encoder configured with the current encoder options

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

inverted → Codec<String, RdfDataset>

Inverts this.

no setter, inherited

primaryMimeType → String

Returns the primary MIME type for N-Quads: 'application/n-quads'

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

supportedMimeTypes → Set<String>

Returns the set of all supported MIME types for N-Quads

no setter, override

Methods

canParse(String content) → bool

Determines if the given content is likely in N-Quads format.

override

decode(String input, {String? documentUrl, RdfGraphDecoderOptions? options}) → RdfDataset

Decodes a string containing RDF data into an RDF graph

inherited

encode(RdfDataset input, {String? baseUri, RdfGraphEncoderOptions? options}) → String

Encodes an RDF graph to a string representation in this codec

inherited

fuse<R>(Codec<String, R> other) → Codec<RdfDataset, R>

Fuses this with other.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

Returns a string representation of this codec

override

withOptions({RdfGraphEncoderOptions? encoder, RdfGraphDecoderOptions? decoder, IriTermFactory? iriTermFactory}) → NQuadsCodec

Creates a new codec instance with the specified options

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

alternativeMimeTypes → const List<String>

The additional MIME types that should be recognized as N-Quads

fileExtensions → const List<String>

The file extensions associated with N-Quads files