Package org.eclipse.rdf4j.query.resultio.sparqljson

Class SPARQLStarResultsJSONConstants

java.lang.Object

org.eclipse.rdf4j.query.resultio.sparqljson.SPARQLStarResultsJSONConstants

final class SPARQLStarResultsJSONConstants
extends Object

Constants for the SPARQL-star JSON format. The format handles TupleQueryResult only. For Boolean results, the SPARQL JSON format is used.

The format introduces a new type, triple, whose value is an object consisting of three elements:

• s - the triple's subject
• p - the triple's predicate
• o - the triple's object

Each of the three elements s, p and o is another object identical in structure to the value for each binding.

For example:

        "b" : {
                "type" : "triple",
                "value" : {
                        "s" : {
                                "type" : "uri",
                                "value" : "urn:a"
            },
                        "p" : {
                                "type" : "uri",
                                "value" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
        },
                        "o" : {
                                "type" : "uri",
                                "value" : "urn:b"
          }
        }
  }
 

See Also:

• RDF-star and SPARQL-star Draft Community Group Report

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final String	OBJECT	Key name of the JSON object for the triple's object.
(package private) static final String	OBJECT_JENA	Key name of the JSON object for the triple's object - Apache Jena dialect
(package private) static final String	PREDICATE	Key name of the JSON object for the triple's predicate.
(package private) static final String	PREDICATE_JENA	Key name of the JSON object for the triple's predicate - Apache Jena dialect
(package private) static TupleQueryResultFormat	QUERY_RESULT_FORMAT
(package private) static final String	SUBJECT	Key name of the JSON object for the triple's subject.
(package private) static final String	SUBJECT_JENA	Key name of the JSON object for the triple's subject - Apache Jena dialect
(package private) static final String	TRIPLE	Type string for serialized Triple value.
(package private) static final String	TRIPLE_STARDOG	Type string for serialized Triple value - Stardog dialect

Constructor Summary

Constructors

Constructor	Description
SPARQLStarResultsJSONConstants()

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

QUERY_RESULT_FORMAT

static TupleQueryResultFormat QUERY_RESULT_FORMAT

TRIPLE

static final String TRIPLE

Type string for serialized Triple value.

See Also:

• Constant Field Values

SUBJECT

static final String SUBJECT

Key name of the JSON object for the triple's subject.

See Also:

• Constant Field Values

PREDICATE

static final String PREDICATE

Key name of the JSON object for the triple's predicate.

See Also:

• Constant Field Values

OBJECT

static final String OBJECT

Key name of the JSON object for the triple's object.

See Also:

• Constant Field Values

TRIPLE_STARDOG

static final String TRIPLE_STARDOG

Type string for serialized Triple value - Stardog dialect

See Also:

• Constant Field Values

SUBJECT_JENA

static final String SUBJECT_JENA

Key name of the JSON object for the triple's subject - Apache Jena dialect

See Also:

• Constant Field Values

PREDICATE_JENA

static final String PREDICATE_JENA

Key name of the JSON object for the triple's predicate - Apache Jena dialect

See Also:

• Constant Field Values

OBJECT_JENA

static final String OBJECT_JENA

Key name of the JSON object for the triple's object - Apache Jena dialect

See Also:

• Constant Field Values

Constructor Details

SPARQLStarResultsJSONConstants

SPARQLStarResultsJSONConstants()