Package org.aksw.faraday_cage.util

Class QueryHelper

java.lang.Object

org.aksw.faraday_cage.util.QueryHelper

public class QueryHelper
extends Object

Helper class for working with Jena SPARQL API. Best used with static imports.

Constructor Summary

Constructors

Constructor	Description
QueryHelper()

Method Summary

Modifier and Type	Method	Description
static String	exists(String s)
static void	forEachResultOf(String q, Model m, Consumer<org.apache.jena.query.QuerySolution> f)
static void	forEachResultOf(org.apache.jena.query.Query q, Model m, Consumer<org.apache.jena.query.QuerySolution> f)
static boolean	hasEmptyResult(org.apache.jena.query.Query q, Model m)
static <V> List<V>	mapResultOf(String q, Model m, Function<org.apache.jena.query.QuerySolution,V> f)
static <V> List<V>	mapResultOf(org.apache.jena.query.Query q, Model m, Function<org.apache.jena.query.QuerySolution,V> f)
static String	not(String s)
static String	triple(String s, Property p, String o)
static String	triple(String s, Property p, Resource o)
static String	triple(Resource s, Property p, String o)
static String	triple(Resource s, Property p, Resource o)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryHelper

public QueryHelper()

Method Detail

forEachResultOf

public static void forEachResultOf(org.apache.jena.query.Query q,
                                   Model m,
                                   Consumer<org.apache.jena.query.QuerySolution> f)

forEachResultOf

public static void forEachResultOf(String q,
                                   Model m,
                                   Consumer<org.apache.jena.query.QuerySolution> f)

mapResultOf

public static <V> List<V> mapResultOf(org.apache.jena.query.Query q,
                                      Model m,
                                      Function<org.apache.jena.query.QuerySolution,V> f)

mapResultOf

public static <V> List<V> mapResultOf(String q,
                                      Model m,
                                      Function<org.apache.jena.query.QuerySolution,V> f)

hasEmptyResult

public static boolean hasEmptyResult(org.apache.jena.query.Query q,
                                     Model m)

not

public static String not(String s)

exists

public static String exists(String s)

triple

public static String triple(String s,
                            Property p,
                            Resource o)

triple

public static String triple(String s,
                            Property p,
                            String o)

triple

public static String triple(Resource s,
                            Property p,
                            Resource o)

triple

public static String triple(Resource s,
                            Property p,
                            String o)