com.hp.hpl.jena.query.ResultSet.next()方法的使用及代码示例

x33g5p2x  于2022-01-28 转载在 其他  
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本文整理了Java中com.hp.hpl.jena.query.ResultSet.next方法的一些代码示例，展示了ResultSet.next的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ResultSet.next方法的具体详情如下：
包路径：com.hp.hpl.jena.query.ResultSet
类名称：ResultSet
方法名：next

ResultSet.next介绍

[英]Moves onto the next result.
[中]转到下一个结果。

代码示例

代码示例来源：origin: fr.inria.eventcloud/eventcloud-api

/**
 * {@inheritDoc}
 */
@Override
public QuerySolution next() {
  return super.object.next();
}

代码示例来源：origin: spaziocodice/SolRDF

@Override
public QuerySolution next() {
  return resultset.next();
}

代码示例来源：origin: com.github.ansell.pellet/pellet-query

public SlicedResultSet( ResultSet results, long offset, long limit ) {
  this.results = results;
  this.row = 0;
  this.limit = limit;
          
  for( int i = 0; i < offset && results.hasNext(); i++ ) {
    results.next();
  }       
}

代码示例来源：origin: fr.lirmm.graphik/graal-store-jenaTDB

@Override
public Term next() {
  QuerySolution next = this.rs.next();
  return createTerm(next.get("?x"));
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples where the object belongs to the given class.
 * @param cls
 * @return
 */
public int getOccurencesInObjectPosition(NamedClass cls){
  log.trace(String.format("Computing number of occurences in object position for %s", cls.getName()));
  String query  = String.format("SELECT (COUNT(?s) AS ?cnt) WHERE {?o a <%s>. ?s ?p ?o.}", cls.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int classOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return classOccurenceCnt;
}

代码示例来源：origin: de.unibonn.iai.eis/luzzu-io

@Override
  public Integer call() throws Exception {
    int size = qe.execSelect().next().get("count").asLiteral().getInt();
    System.out.println(size);
    return size;
  }
});

代码示例来源：origin: AskNowQA/AutoSPARQL

public Set<DatatypeProperty> getAllDataProperties() {
  Set<DatatypeProperty> properties = new TreeSet<DatatypeProperty>();
  String query = "PREFIX owl: <http://www.w3.org/2002/07/owl#> SELECT ?p WHERE {?p a owl:DatatypeProperty}";
  ResultSet q = queryable.query(query);
  while (q.hasNext()) {
    QuerySolution qs = q.next();
    properties.add(new DatatypeProperty(qs.getResource("p").getURI()));
  }
  return properties;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number triples with the given property as predicate.
 * @param prop
 * @return
 */
public int getOccurences(Property prop){
  log.trace(String.format("Computing number of occurences as predicate for %s", prop.getName()));
  String query  = String.format("SELECT (COUNT(*) AS ?cnt) WHERE {?s <%s> ?o}", prop.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int propOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return propOccurenceCnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples where the subject belongs to the given class.
 * @param cls
 * @return
 */
public int getOccurencesInSubjectPosition(NamedClass cls){
  log.trace(String.format("Computing number of occurences in subject position for %s", cls.getName()));
  String query  = String.format("SELECT (COUNT(?s) AS ?cnt) WHERE {?s a <%s>. ?s ?p ?o.}", cls.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int classOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return classOccurenceCnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples where the subject or object belongs to the given class.
 * (This is not the same as computing the number of instances of the given class {@link SPARQLEndpointMetrics#getPopularity(NamedClass)})
 * @param cls
 * @return
 */
public int getOccurences(NamedClass cls){
  log.trace(String.format("Computing number of occurences in subject or object position for %s", cls.getName()));
  String query  = String.format("SELECT (COUNT(?s) AS ?cnt) WHERE {?s a <%s>.{?s ?p1 ?o1.} UNION {?o2 ?p2 ?s} }", cls.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int classOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return classOccurenceCnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

public Set<ObjectProperty> getAllObjectProperties() {
  Set<ObjectProperty> properties = new TreeSet<ObjectProperty>();
  String query = "PREFIX owl: <http://www.w3.org/2002/07/owl#> SELECT ?p WHERE {?p a owl:ObjectProperty}";
  ResultSet q = queryable.query(query);
  while (q.hasNext()) {
    QuerySolution qs = q.next();
    properties.add(new ObjectProperty(qs.getResource("p").getURI()));
  }
  return properties;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples where the given individual is in object position(in-going links).
 * @param cls
 * @return
 */
public int getOccurencesInObjectPosition(Individual ind){
  log.trace(String.format("Computing number of occurences in object position for %s", ind.getName()));
  String query  = String.format("SELECT (COUNT(*) AS ?cnt) WHERE {?s ?p <%s>.}", ind.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int classOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return classOccurenceCnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of instances of the given class.
 * @param cls
 * @return
 */
public int getPopularity(NamedClass cls){
  String query  = String.format("SELECT (COUNT(?s) AS ?cnt) WHERE {?s a <%s>.{?s ?p1 ?o1.} UNION {?o2 ?p2 ?s} }", cls.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int classOccurenceCnt = rs.next().getLiteral("cnt").getInt();
  return classOccurenceCnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples with the given property as predicate and where the subject belongs to the given class.
 * @param cls
 * @return
 */
public int getOccurencesSubjectPredicate(NamedClass cls, Property prop){
  log.trace(String.format("Computing number of occurences as subject and predicate for [%s, %s]", cls.getName(), prop.getName()));
  String query  = String.format("SELECT (COUNT(*) AS ?cnt) WHERE {?s a <%s>. ?s <%s> ?o}", cls.getName(), prop.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int cnt = rs.next().getLiteral("cnt").getInt();
  return cnt;
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples with the given property as predicate and where the object belongs to the given class.
 * @param cls
 * @return
 */
public int getOccurencesPredicateObject(Property prop, NamedClass cls){
  log.trace(String.format("Computing number of occurences as predicate and object for [%s, %s]", prop.getName(), cls.getName()));
  String query  = String.format("SELECT (COUNT(*) AS ?cnt) WHERE {?o a <%s>. ?s <%s> ?o}", cls.getName(), prop.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int cnt = rs.next().getLiteral("cnt").getInt();
  return cnt;
}

代码示例来源：origin: fr.lirmm.graphik/graal-store-jenaTDB

@Override
public Atom next() {
  QuerySolution next = this.rs.next();
  Predicate predicate = this.predicate;
  if(predicate == null)
    predicate = createPredicate(next.get("?p"), 2);
  
  Term subject = this.subject;
  if(subject == null)
    subject = createTerm(next.get("?s"));
  
  Term object = this.object;
  if (object == null)
    object = createTerm(next.get("?o"));
  return new DefaultAtom(predicate, subject, object);
}

代码示例来源：origin: AskNowQA/AutoSPARQL

/**
 * Returns the number of triples with the first given class as subject and the second given class as object.
 * @param cls
 * @return
 */
public int getOccurencesSubjectObject(NamedClass subject, NamedClass object){
  log.trace(String.format("Computing number of occurences as subject and object for [%s, %s]", subject.getName(), object.getName()));
  String query  = String.format("SELECT (COUNT(*) AS ?cnt) WHERE {?s a <%s>. ?s ?p ?o. ?o a <%s>}", subject.getName(), object.getName());
  ResultSet rs = SparqlQuery.convertJSONtoResultSet(cache.executeSelectQuery(endpoint, query));
  int cnt = rs.next().getLiteral("cnt").getInt();
  return cnt;
}

代码示例来源：origin: de.unibonn.iai.eis/luzzu-io

@Override
  public Integer call() throws Exception{ 
    String query = "SELECT DISTINCT (count(?s) AS ?count) { { ?s ?p ?o . } UNION { GRAPH ?g { ?s ?p ?o .} } }";
    QueryEngineHTTP qe = (QueryEngineHTTP) QueryExecutionFactory.sparqlService(sparqlEndPoint,query);
    int size = qe.execSelect().next().get("count").asLiteral().getInt();
    return size;
  }
});

代码示例来源：origin: org.apache.clerezza.ext/org.apache.jena.jena-arq

/** Output a result set in BIO format */
public static void outputAsBIO(OutputStream out, ResultSet results)
{
  List<Var> vars = Var.varList(results.getResultVars()) ;
  
  BindingOutputStream bout = new BindingOutputStream(out, vars) ;
  for ( ; results.hasNext() ; )
  {
    Binding b = BindingUtils.asBinding(results.next()) ;
    bout.write(b) ;
  }
  bout.flush() ;
}

代码示例来源：origin: de.unibonn.iai.eis/luzzu-operations

public String getComputedOn(){
  String selectQuery = "SELECT ?cOn { graph <"+currentGraphURI+"> { ?s <"+DAQ.computedOn.getURI()+"> ?cOn } }";
  QueryExecution exec =  QueryExecutionFactory.create(QueryFactory.create(selectQuery), dsLoader.getInternalDataset());
  
  ResultSet set = exec.execSelect();
  while(set.hasNext()){
    QuerySolution qs = set.next();
    Resource computedOn = qs.getResource("cOn");
    return computedOn.getURI();
  }
  return null;
}

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