org.eclipse.rdf4j.query.BooleanQuery类的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中org.eclipse.rdf4j.query.BooleanQuery类的一些代码示例，展示了BooleanQuery类的具体用法。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。BooleanQuery类的具体详情如下：
包路径：org.eclipse.rdf4j.query.BooleanQuery
类名称：BooleanQuery

BooleanQuery介绍

暂无

代码示例

代码示例来源：origin: de.tudarmstadt.ukp.inception.rdf4j/rdf4j-repository-dataset

public boolean evaluate()
    throws QueryEvaluationException
  {
    con.loadDataset(sailQuery.getActiveDataset());
    return ((BooleanQuery)sailQuery).evaluate();
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-repository-sparql

/**
 * Evaluate the provided sparqlQueryString at the initialized {@link Repository} of this
 * {@link FederatedService}. Insert bindings, send ask query and return final result
 */
@Override
public boolean ask(Service service, BindingSet bindings, String baseUri)
  throws QueryEvaluationException
{
  try {
    String sparqlQueryString = service.getAskQueryString();
    BooleanQuery query = getConnection().prepareBooleanQuery(QueryLanguage.SPARQL, sparqlQueryString,
        baseUri);
    Iterator<Binding> bIter = bindings.iterator();
    while (bIter.hasNext()) {
      Binding b = bIter.next();
      if (service.getServiceVars().contains(b.getName()))
        query.setBinding(b.getName(), b.getValue());
    }
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new QueryEvaluationException(e);
  }
  catch (RepositoryException e) {
    throw new QueryEvaluationException(
        "Repository for endpoint " + rep.toString() + " could not be initialized.", e);
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-sail-spin

@Override
public BooleanQuery prepare(ParsedBooleanQuery askQuery) {
  BooleanQuery query = new SailConnectionBooleanQuery(askQuery, con);
  query.setIncludeInferred(includeInferred);
  return query;
}

代码示例来源：origin: franzinc/agraph-java-client

query.setBinding("name", nameBob);
assertTrue(query.evaluate());
query.setDataset(dataset);
assertTrue(query.evaluate());
query.setDataset(dataset);
assertTrue(query.evaluate());
query.setDataset(dataset);
assertFalse(query.evaluate());
query.setBinding("name", nameBob);
query.setDataset(dataset);
assertFalse(query.evaluate());
query.setDataset(dataset);
assertFalse(query.evaluate());
query.setDataset(dataset);
assertTrue(query.evaluate());

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-repository-dataset

public boolean evaluate()
    throws QueryEvaluationException
  {
    con.loadDataset(sailQuery.getActiveDataset());
    return ((BooleanQuery)sailQuery).evaluate();
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-client

/**
 * Evaluate the provided sparqlQueryString at the initialized {@link Repository} of this
 * {@link FederatedService}. Insert bindings, send ask query and return final result
 */
@Override
public boolean ask(Service service, BindingSet bindings, String baseUri)
  throws QueryEvaluationException
{
  try {
    String sparqlQueryString = service.getAskQueryString();
    BooleanQuery query = getConnection().prepareBooleanQuery(QueryLanguage.SPARQL, sparqlQueryString,
        baseUri);
    Iterator<Binding> bIter = bindings.iterator();
    while (bIter.hasNext()) {
      Binding b = bIter.next();
      if (service.getServiceVars().contains(b.getName()))
        query.setBinding(b.getName(), b.getValue());
    }
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new QueryEvaluationException(e);
  }
  catch (RepositoryException e) {
    throw new QueryEvaluationException(
        "Repository for endpoint " + rep.toString() + " could not be initialized.", e);
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-repository-sail

@Override
public BooleanQuery prepare(ParsedBooleanQuery askQuery) {
  BooleanQuery query = new SailBooleanQuery(askQuery, con);
  query.setIncludeInferred(includeInferred);
  return query;
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-http-server-spring

/**
 * Evaluate a {@link BooleanQuery} in this transaction and return the result.
 * 
 * @param bQuery
 *        a {@link BooleanQuery} prepared on this transaction.
 * @return the query result as a boolean
 * @throws InterruptedException
 *         if the transaction thread is interrupted
 * @throws ExecutionException
 *         if an error occurs while executing the operation.
 */
boolean evaluate(BooleanQuery bQuery)
  throws InterruptedException, ExecutionException
{
  Future<Boolean> result = submit(() -> bQuery.evaluate());
  return getFromFuture(result);
}

代码示例来源：origin: eclipse/rdf4j

/**
 * Evaluate the provided sparqlQueryString at the initialized {@link Repository} of this
 * {@link FederatedService}. Insert bindings, send ask query and return final result
 */
@Override
public boolean ask(Service service, BindingSet bindings, String baseUri)
  throws QueryEvaluationException
{
  try {
    String sparqlQueryString = service.getAskQueryString();
    BooleanQuery query = getConnection().prepareBooleanQuery(QueryLanguage.SPARQL, sparqlQueryString,
        baseUri);
    Iterator<Binding> bIter = bindings.iterator();
    while (bIter.hasNext()) {
      Binding b = bIter.next();
      if (service.getServiceVars().contains(b.getName()))
        query.setBinding(b.getName(), b.getValue());
    }
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new QueryEvaluationException(e);
  }
  catch (RepositoryException e) {
    throw new QueryEvaluationException(
        "Repository for endpoint " + rep.toString() + " could not be initialized.", e);
  }
}

代码示例来源：origin: de.tudarmstadt.ukp.inception.rdf4j/rdf4j-sail-spin

@Override
public BooleanQuery prepare(ParsedBooleanQuery askQuery) {
  BooleanQuery query = new SailConnectionBooleanQuery(askQuery, con);
  query.setIncludeInferred(includeInferred);
  return query;
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-client

public boolean hasStatement(Resource subj, IRI pred, Value obj, boolean includeInferred,
    Resource... contexts)
  throws RepositoryException
{
  try {
    BooleanQuery query = prepareBooleanQuery(SPARQL, SOMETHING, "");
    setBindings(query, subj, pred, obj, contexts);
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: franzinc/agraph-java-client

@Test
public void testPreparedBooleanQuery()
    throws Exception {
  testCon.add(alice, name, nameAlice, context2);
  testCon.add(alice, mbox, mboxAlice, context2);
  testCon.add(context2, publisher, nameAlice);
  testCon.add(bob, name, nameBob, context1);
  testCon.add(bob, mbox, mboxBob, context1);
  testCon.add(context1, publisher, nameBob);
  StringBuilder queryBuilder = new StringBuilder();
  queryBuilder.append("PREFIX foaf: <" + FOAF_NS + "> ");
  queryBuilder.append("ASK ");
  queryBuilder.append("{ ?p foaf:name ?name }");
  BooleanQuery query = testCon.prepareBooleanQuery(QueryLanguage.SPARQL, queryBuilder.toString());
  query.setBinding("name", nameBob);
  assertTrue(query.evaluate());
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-repository-sparql

public boolean hasStatement(Resource subj, IRI pred, Value obj, boolean includeInferred,
    Resource... contexts)
  throws RepositoryException
{
  try {
    BooleanQuery query = prepareBooleanQuery(SPARQL, SOMETHING, "");
    setBindings(query, subj, pred, obj, contexts);
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: ontop/ontop

boolean b = askQuery.evaluate();

代码示例来源：origin: eclipse/rdf4j

@Override
public boolean hasStatement(Resource subj, IRI pred, Value obj, boolean includeInferred,
    Resource... contexts)
  throws RepositoryException
{
  try {
    BooleanQuery query = prepareBooleanQuery(SPARQL, SOMETHING, "");
    setBindings(query, subj, pred, obj, contexts);
    return query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-client

public boolean isEmpty()
  throws RepositoryException
{
  try {
    BooleanQuery query;
    if (isQuadMode()) {
      query = prepareBooleanQuery(SPARQL, SOMETHING_WITH_GRAPH);
    }
    else {
      query = prepareBooleanQuery(SPARQL, SOMETHING);
    }
    return !query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: eclipse/rdf4j

@Override
public boolean isEmpty()
  throws RepositoryException
{
  try {
    BooleanQuery query;
    if (isQuadMode()) {
      query = prepareBooleanQuery(SPARQL, SOMETHING_WITH_GRAPH);
    }
    else {
      query = prepareBooleanQuery(SPARQL, SOMETHING);
    }
    return !query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-repository-sparql

public boolean isEmpty()
  throws RepositoryException
{
  try {
    BooleanQuery query;
    if (isQuadMode()) {
      query = prepareBooleanQuery(SPARQL, SOMETHING_WITH_GRAPH);
    }
    else {
      query = prepareBooleanQuery(SPARQL, SOMETHING);
    }
    return !query.evaluate();
  }
  catch (MalformedQueryException e) {
    throw new RepositoryException(e);
  }
  catch (QueryEvaluationException e) {
    throw new RepositoryException(e);
  }
}

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-http-server-spring

BooleanQuery bQuery = (BooleanQuery)query;
queryResult = headersOnly ? null : bQuery.evaluate();
registry = BooleanQueryResultWriterRegistry.getInstance();
view = BooleanQueryResultView.getInstance();

代码示例来源：origin: Merck/Halyard

SailQuery q = repo.getConnection().prepareQuery(QueryLanguage.SPARQL, cmd.getOptionValue('q'), null);
if (q instanceof BooleanQuery) {
  ((BooleanQuery)q).evaluate();
} else if (q instanceof TupleQuery) {
  ((TupleQuery)q).evaluate();

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