本文整理了Java中org.apache.jena.query.Query.setQueryResultStar方法的一些代码示例，展示了Query.setQueryResultStar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。Query.setQueryResultStar方法的具体详情如下：
包路径：org.apache.jena.query.Query
类名称：Query
方法名：setQueryResultStar

Query.setQueryResultStar介绍

[英]Set whether the query had SELECT/DESCRIBE
[中]设置查询是否已选择/描述

代码示例

代码示例来源：origin: apache/jena

/**
 * Add a variable to the select. If the variable is <code>null</code> the
 * variables are set to star.
 * 
 * @param var
 *            The variable to add.
 */
public void addVar(Var var) {
  if (var == null) {
    query.setQueryResultStar(true);
  } else {
    query.setQueryResultStar(false);
    query.addResultVar(var);
  }
}

代码示例来源：origin: org.apache.jena/jena-querybuilder

/**
 * Add a variable to the select. If the variable is <code>null</code> the
 * variables are set to star.
 * 
 * @param var
 *            The variable to add.
 */
public void addVar(Var var) {
  if (var == null) {
    query.setQueryResultStar(true);
  } else {
    query.setQueryResultStar(false);
    query.addResultVar(var);
  }
}

代码示例来源：origin: apache/jena

/**
 * Add an Expression as variable to the select.
 * 
 * @param expr
 *            The expression to add.
 * @param var
 *            The variable to add.
 */
public void addVar(Expr expr, Var var) {
  if (expr == null) {
    throw new IllegalArgumentException("expr may not be null");
  }
  if (var == null) {
    throw new IllegalArgumentException("var may not be null");
  }
  query.setQueryResultStar(false);
  query.addResultVar(var, expr);
  aggHandler.add( expr, var );
}

代码示例来源：origin: org.apache.jena/jena-querybuilder

/**
 * Add an Expression as variable to the select.
 * 
 * @param expr
 *            The expression to add.
 * @param var
 *            The variable to add.
 */
public void addVar(Expr expr, Var var) {
  if (expr == null) {
    throw new IllegalArgumentException("expr may not be null");
  }
  if (var == null) {
    throw new IllegalArgumentException("var may not be null");
  }
  query.setQueryResultStar(false);
  query.addResultVar(var, expr);
  aggHandler.add( expr, var );
}

代码示例来源：origin: apache/jena

private static Query toQuery(Element pattern) {
  Query query = QueryFactory.make() ;
  query.setQueryPattern(pattern) ;
  query.setQuerySelectType() ;
  query.setQueryResultStar(true) ;
  return query ;
}

代码示例来源：origin: apache/jena

@Override
  public void build() {
    if (query.getProject().getVars().isEmpty()) {
      query.setQueryResultStar(true);
    }
    
    aggHandler.build();
    
    // handle the SELECT * case
    query.getProjectVars();
  }
}

代码示例来源：origin: org.apache.jena/jena-querybuilder

@Override
  public void build() {
    if (query.getProject().getVars().isEmpty()) {
      query.setQueryResultStar(true);
    }
    
    aggHandler.build();
    
    // handle the SELECT * case
    query.getProjectVars();
  }
}

代码示例来源：origin: apache/jena

protected Query elementToQuery(Element pattern) {
  if ( pattern == null )
    return null;
  Query query = new Query();
  query.setQueryPattern(pattern);
  query.setQuerySelectType();
  query.setQueryResultStar(true);
  query.setResultVars();
  return query;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

public static Query asQuery(Op op, Dialect dialect)
{
  Query query = QueryFactory.make() ;
  Converter v = new Converter(query, dialect) ;
  //OpWalker.walk(op, v) ;
  op.visit(v) ;
  List<Var> vars = v.projectVars;
  query.setQueryResultStar(vars.isEmpty()); // SELECT * unless we are projecting
  Iterator<Var> iter = vars.iterator();
  for (; iter.hasNext();) {
    Var var = iter.next();
    if (v.varExpression.containsKey(var))
      query.addResultVar(var, v.varExpression.get(var));
    else
      query.addResultVar(var);
  }
  ElementGroup eg = v.currentGroup ;
  query.setQueryPattern(eg) ;
  query.setQuerySelectType() ;
  query.setResultVars() ;
  return query ;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

public static Query wrapAsSubQuery(Query query) {
  Element esq = new ElementSubQuery(query);
  Query result = new Query();
  result.setQuerySelectType();
  result.setQueryResultStar(true);
  result.setQueryPattern(esq);
  return result;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

private Iterator<Triple> executeConstructStreaming(Query query) {
  if (!query.isConstructType()) {
    throw new RuntimeException("CONSTRUCT query expected. Got: ["
        + query.toString() + "]");
  }
  Query clone = query.cloneQuery();
  clone.setQuerySelectType();
  //Query selectQuery = QueryUtils.elementToQuery(query.getQueryPattern());
  clone.setQueryResultStar(true);
  ResultSetCloseable rs = executeCoreSelect(clone);
  System.out.println("Executing query as: " + clone);
  // insertPrefixesInto(result) ;
  Template template = query.getConstructTemplate();
  Iterator<Triple> result = new ConstructIterator(template, rs);
  return result;
}

代码示例来源：origin: org.aksw.jena-sparql-api/jena-sparql-api-cache

public static Element limitElement(Element e, long limit) {
  Query subQuery = new Query();
  subQuery.setQuerySelectType();
  subQuery.setQueryResultStar(true);
  subQuery.setQueryPattern(e);
  subQuery.setLimit(limit);
  Element result = new ElementSubQuery(subQuery);
  return result;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

public static Element limitElement(Element e, long limit) {
  Query subQuery = new Query();
  subQuery.setQuerySelectType();
  subQuery.setQueryResultStar(true);
  subQuery.setQueryPattern(e);
  subQuery.setLimit(limit);
  Element result = new ElementSubQuery(subQuery);
  return result;
}

代码示例来源：origin: apache/jena

@Override
public Iterator<Quad> execConstructQuads() {
  checkNotClosed();
  if ( ! query.isConstructType() )
    throw new QueryExecException("Attempt to get a CONSTRUCT model from a "+labelForQuery(query)+" query") ;
  // This causes there to be no PROJECT around the pattern.
  // That in turn, exposes the initial bindings.  
  query.setQueryResultStar(true) ;
  startQueryIterator() ;
  
  Template template = query.getConstructTemplate() ;
  return TemplateLib.calcQuads(template.getQuads(), queryIterator);
}

代码示例来源：origin: apache/jena

@Override
public Iterator<Triple> execConstructTriples() {
  checkNotClosed();
  if ( ! query.isConstructType() )
    throw new QueryExecException("Attempt to get a CONSTRUCT model from a "+labelForQuery(query)+" query") ;
  // This causes there to be no PROJECT around the pattern.
  // That in turn, exposes the initial bindings.  
  query.setQueryResultStar(true) ;
  startQueryIterator() ;
  
  Template template = query.getConstructTemplate() ;
  return TemplateLib.calcTriples(template.getTriples(), queryIterator);
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

@Deprecated // Remove once countQuery works as espected
public static long countQueryOld(Query query, QueryExecutionFactory qef) {
  Var outputVar = Var.alloc("_c_");
  if(query.isConstructType()) {
    Element element = query.getQueryPattern();
    query = new Query();
    query.setQuerySelectType();
    query.setQueryResultStar(true);
    query.setQueryPattern(element);
  }
  Query countQuery = QueryFactory.create("Select (Count(*) As ?_c_) { {" + query + "} }", Syntax.syntaxSPARQL_11);
  QueryExecution qe = qef.createQueryExecution(countQuery);
  ResultSet rs = qe.execSelect();
  Binding binding = rs.nextBinding();
  Node node = binding.get(outputVar);
  Number numeric = (Number)node.getLiteralValue();
  long result = numeric.longValue();
  return result;
}

代码示例来源：origin: apache/jena

@Override
public void startVisit(Query query) {
  newQuery.setSyntax(query.getSyntax());
  if (query.explicitlySetBaseURI())
    newQuery.setBaseURI(query.getPrologue().getResolver());
  newQuery.setQueryResultStar(query.isQueryResultStar());
  if (query.hasDatasetDescription()) {
    DatasetDescription desc = query.getDatasetDescription();
    for (String x : desc.getDefaultGraphURIs())
      newQuery.addGraphURI(x);
    for (String x : desc.getDefaultGraphURIs())
      newQuery.addNamedGraphURI(x);
  }
  // Aggregators.
  newQuery.getAggregators().addAll(query.getAggregators());
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

@Override
public void startVisit(Query query) {
  newQuery.setSyntax(query.getSyntax()) ;
  if ( query.explicitlySetBaseURI() )
    newQuery.setBaseURI(query.getPrologue().getResolver()) ;
  newQuery.setQueryResultStar(query.isQueryResultStar()) ;
  if ( query.hasDatasetDescription() ) {
    DatasetDescription desc = query.getDatasetDescription() ;
    for (String x : desc.getDefaultGraphURIs())
      newQuery.addGraphURI(x) ;
    for (String x : desc.getDefaultGraphURIs())
      newQuery.addNamedGraphURI(x) ;
  }
  // Aggregators.
  newQuery.getAggregators().addAll(query.getAggregators()) ;
}

代码示例来源：origin: apache/jena

/**
 * Add all the variables from the select handler variable.
 * 
 * @param selectHandler
 *            The select handler to copy the variables from.
 */
public void addAll(SelectHandler selectHandler) {
  setReduced(selectHandler.query.isReduced());
  setDistinct(selectHandler.query.isDistinct());
  query.setQueryResultStar(selectHandler.query.isQueryResultStar());
  VarExprList shProjectVars = selectHandler.query.getProject();
  VarExprList qProjectVars = query.getProject();
  for (Var var : shProjectVars.getVars()) {
    // make sure there are no duplicates
    if (!qProjectVars.contains(var)) {
      qProjectVars.add(var, shProjectVars.getExpr(var));
    }
  }
  aggHandler.addAll( selectHandler.aggHandler );
}

代码示例来源：origin: org.apache.jena/jena-querybuilder

/**
 * Add all the variables from the select handler variable.
 * 
 * @param selectHandler
 *            The select handler to copy the variables from.
 */
public void addAll(SelectHandler selectHandler) {
  setReduced(selectHandler.query.isReduced());
  setDistinct(selectHandler.query.isDistinct());
  query.setQueryResultStar(selectHandler.query.isQueryResultStar());
  VarExprList shProjectVars = selectHandler.query.getProject();
  VarExprList qProjectVars = query.getProject();
  for (Var var : shProjectVars.getVars()) {
    // make sure there are no duplicates
    if (!qProjectVars.contains(var)) {
      qProjectVars.add(var, shProjectVars.getExpr(var));
    }
  }
  aggHandler.addAll( selectHandler.aggHandler );
}