com.marklogic.client.semantics

Interface SPARQLBindings

All Superinterfaces:

Map<String,List<SPARQLBinding>>

public interface SPARQLBindings
extends Map<String,List<SPARQLBinding>>

Represents binding names and values to be sent with a SPARQL Query. Available for situations where SPARQLQueryDefinition.withBinding methods are not enough.

Example matching an iri:

    graphMgr.setDefaultMimetype(RDFMimeTypes.NTRIPLES);
    graphMgr.writeAs("http://example.org",
        "<http://example.org/s1> <http://example.org/p1> <http://example.org/object1> .\n" +
        "<http://example.org/s2> <http://example.org/p2> \"object2\" .\n" +
        "<http://example.org/s3> <http://example.org/p3> \"object3\"@en .");
    String select = "SELECT * WHERE { ?s ?p ?o }";
    SPARQLQueryDefinition qdef = sparqlMgr.newQueryDefinition(select);
    SPARQLBindings bindings = qdef.getBindings();
    bindings.bind("o", "http://example.org/object1");
    JacksonHandle results = sparqlMgr.executeSelect(qdef, new JacksonHandle());

Example matching a literal of rdf data type string (re-using data and variables above):

    qdef = sparqlMgr.newQueryDefinition(select);
    bindings = qdef.getBindings();
    bindings.bind("o", "object2", RDFTypes.STRING);
    results = sparqlMgr.executeSelect(qdef, new JacksonHandle());

Example matching a string with a language tag (re-using data and variables above):

    qdef = sparqlMgr.newQueryDefinition(select);
    bindings = qdef.getBindings();
    bindings.bind("o", "object3", new Locale("en"));
    results = sparqlMgr.executeSelect(qdef, new JacksonHandle());

For more about RDF literals, see RDF 1.1 section 3.3.

For details about RDF, SPARQL, and semantics in MarkLogic see the Semantics Developer's Guide.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method and Description
SPARQLBindings	bind(String name, String value) Bind a variable of type iri.
SPARQLBindings	bind(String name, String value, Locale languageTag) Bind a variable of type http://www.w3.org/1999/02/22-rdf-syntax-ns#langString with the specified language tag.
SPARQLBindings	bind(String name, String value, RDFTypes datatype) Bind a variable of specified type.

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Method Detail

bind

SPARQLBindings bind(String name,
                    String value)

Bind a variable of type iri.

Parameters:

name - the bound variable name

value - the iri value

Returns:

this instance (for method chaining)

bind

SPARQLBindings bind(String name,
                    String value,
                    RDFTypes datatype)

Bind a variable of specified type.

Parameters:

name - the bound variable name

value - the value of the literal

datatype - the literal type

Returns:

this instance (for method chaining)

bind

SPARQLBindings bind(String name,
                    String value,
                    Locale languageTag)

Bind a variable of type http://www.w3.org/1999/02/22-rdf-syntax-ns#langString with the specified language tag. Note that we call Locale.toLanguageTag() to get compliant IETF BCP 47 language tags.

Parameters:

name - the bound variable name

value - the value as a string

languageTag - the language and regional modifiers compliant with BCP-47

Returns:

this instance (for method chaining)