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

Query.isDistinct介绍

暂无

代码示例

代码示例来源：origin: apache/tinkerpop

final String[] all = new String[vars.size()];
vars.toArray(all);
if (query.isDistinct()) {
  traversal = traversal.dedup(all);

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

public static boolean isDistinctConceptVar(Query query, Var conceptVar) {
  boolean isDistinct = query.isDistinct();
  Collection<Var> projectVars = query.getProjectVars();
  boolean hasSingleVar = !query.isQueryResultStar() && projectVars != null && projectVars.size() == 1;
  boolean result = isDistinct && hasSingleVar && projectVars.iterator().next().equals(conceptVar);
  return result;
}

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

/**
   * <sparql xmlns="http://www.w3.org/2005/sparql-results#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.w3.org/2001/sw/DataAccess/rf1/result2.xsd">
   * <head>
   *  <variable name="s"/>
   *  <variable name="p"/>
   *  <variable name="o"/>
   * </head>
   * <results distinct="false" ordered="true">
   * @see org.springframework.batch.item.file.FlatFileHeaderCallback#writeHeader(java.io.Writer)
   */
  @Override
  public void writeHeader(Writer writer) throws IOException {
    PrintWriter pw = new PrintWriter(writer);
    pw.println("<?xml version=\"1.0\"?>") ;
    pw.println("<sparql xmlns=\"http://www.w3.org/2005/sparql-results#\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.w3.org/2001/sw/DataAccess/rf1/result2.xsd\">");
    pw.println(" <head>") ;
    List<String> varNames = query.getResultVars();
    for(String varName : varNames) {
      pw.println("  <variable name=\"" + varName + "\" />") ;
    }
    pw.println(" </head>") ;
    pw.print(" <results distinct=\"" + query.isDistinct() + "\" " + "ordered=\"" + !CollectionUtils.isEmpty(query.getOrderBy()) + "\">");
    pw.flush();
  }
});

代码示例来源：origin: dkuppitz/sparql-gremlin

throw new IllegalStateException();
  case 1:
    if (query.isDistinct()) {
      traversal = traversal.dedup(vars.get(0));
    break;
  case 2:
    if (query.isDistinct()) {
      traversal = traversal.dedup(vars.get(0), vars.get(1));
    final String[] all = new String[vars.size()];
    vars.toArray(all);
    if (query.isDistinct()) {
      traversal = traversal.dedup(all);
if (query.isDistinct()) {
  traversal = traversal.dedup();

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

/**
 * Constructor.
 * 
 * @param aggHandler The aggregate handler that wraps the query we want to handle.
 */
public SelectHandler(AggregationHandler aggHandler) {
  this.query = aggHandler.getQuery();
  this.aggHandler = aggHandler;
  setDistinct(query.isDistinct());
  setReduced(query.isReduced());
}

代码示例来源：origin: apache/jena

/**
 * Constructor.
 * 
 * @param aggHandler The aggregate handler that wraps the query we want to handle.
 */
public SelectHandler(AggregationHandler aggHandler) {
  this.query = aggHandler.getQuery();
  this.aggHandler = aggHandler;
  setDistinct(query.isDistinct());
  setReduced(query.isReduced());
}

代码示例来源：origin: apache/jena

@Override
public void visitSelectResultForm(Query query1)
{ 
  check("Not both SELECT queries", query2.isSelectType()) ;
  check("DISTINCT modifier",
     query1.isDistinct() == query2.isDistinct()) ;
  check("SELECT *", query1.isQueryResultStar() == query2.isQueryResultStar()) ;
  check("Result variables",   query1.getProject(), query2.getProject() ) ;
}

代码示例来源：origin: apache/jena

@Override
public void visitSelectResultForm(Query query) {
  newQuery.setQuerySelectType();
  newQuery.setDistinct(query.isDistinct());
  VarExprList x = query.getProject();
  for (Var v : x.getVars()) {
    Expr expr = x.getExpr(v);
    if (expr == null)
      newQuery.addResultVar(v);
    else
      newQuery.addResultVar(v, expr);
  }
}

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

@Override
public void visitSelectResultForm(Query query) {
  newQuery.setQuerySelectType() ;
  newQuery.setDistinct(query.isDistinct()) ;
  VarExprList x = query.getProject() ;
  for (Var v : x.getVars()) {
    Expr expr = x.getExpr(v) ;
    if ( expr == null )
      newQuery.addResultVar(v) ;
    else
      newQuery.addResultVar(v, expr) ;
  }
}

代码示例来源：origin: com.github.galigator.openllet/openllet-jena

return parse(triples, sparql.getResultVars(), kb, sparql.isDistinct());

代码示例来源：origin: Galigator/openllet

return parse(triples, sparql.getResultVars(), kb, sparql.isDistinct());

代码示例来源：origin: Galigator/openllet

return parse(triples, sparql.getResultVars(), kb, sparql.isDistinct());

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

boolean isDistinct = rawQuery.isDistinct();

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

boolean isDistinct = rawQuery.isDistinct();

代码示例来源：origin: apache/jena

@Override
public void visitSelectResultForm(Query query)
{
  out.print("SELECT ") ;
  if ( query.isDistinct() )
    out.print("DISTINCT ") ;
  if ( query.isReduced() )
    out.print("REDUCED ") ;
  out.print(" ") ; //Padding
  
  if ( query.isQueryResultStar() )
    out.print("*") ;
  else
    appendNamedExprList(query, out, query.getProject()) ;
  out.newline() ;
}

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 );
}

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

public static long countQuery(Query query, QueryExecutionFactory qef) {
  boolean needsWrapping = !query.getGroupBy().isEmpty() || !query.getAggregators().isEmpty();
  boolean useCountDistinct = !needsWrapping && query.isDistinct() && query.isQueryResultStar();

代码示例来源：origin: apache/jena

if ( query.isDistinct() )
  op = OpDistinct.create(op) ;

org.apache.jena.query.Query.isDistinct()方法的使用及代码示例

Query.isDistinct介绍

代码示例

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