org.apache.jena.query.Query.isDescribeType()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org.apache.jena.query.Query.isDescribeType方法的一些代码示例，展示了Query.isDescribeType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.isDescribeType方法的具体详情如下：
包路径：org.apache.jena.query.Query
类名称：Query
方法名：isDescribeType

Query.isDescribeType介绍

暂无

代码示例

代码示例来源：origin: AtomGraph/Core

  1. /**
  2.  * Convenience method for <pre>DESCRIBE</pre> queries.
  3.  * 
  4.  * @param defaultGraphUris default graph URIs
  5.  * @param namedGraphUris named graph URIs
  6.  * @link #loadModel(query)
  7.  * @param query
  8.  * @return RDF model
  9.  */
  10. public Model describe(Query query, List<URI> defaultGraphUris, List<URI> namedGraphUris)    
  11. {
  12.   if (query == null) throw new IllegalArgumentException("Query must be not null");
  13.   if (!query.isDescribeType()) throw new IllegalArgumentException("Query must be DESCRIBE");
  14.   
  15.   return loadModel(query, defaultGraphUris, namedGraphUris);
  16. }

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

  1. public static Node extractDescribeNode(Query query) {
  2.   if (!query.isDescribeType()) {
  3.     throw new RuntimeException("DESCRIBE query expected. Got: ["
  4.         + query.toString() + "]");
  5.   }
  6.   // TODO Right now we only support describe with a single constant.
  7.   //Element queryPattern = query.getQueryPattern();
  8.   if(query.getQueryPattern() != null || !query.getResultVars().isEmpty() || query.getResultURIs().size() > 1) {
  9.     throw new RuntimeException("Sorry, DESCRIBE is only implemented for a single resource argument");
  10.   }
  11.   Node result = query.getResultURIs().get(0);
  12.   return result;
  13. }

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

  1. private static QueryType getQueryType(final Query query)
  2. {
  3.   if (query.isSelectType())
  4.     return QueryType.SELECT;
  5.   if (query.isConstructType())
  6.     return QueryType.CONSTRUCT;
  7.   if (query.isDescribeType())
  8.     return QueryType.DESCRIBE;
  9.   if (query.isAskType())
  10.     return QueryType.ASK;
  11.   return null;
  12. }

代码示例来源：origin: Galigator/openllet

  1. private static QueryType getQueryType(final Query query)
  2. {
  3.   if (query.isSelectType())
  4.     return QueryType.SELECT;
  5.   if (query.isConstructType())
  6.     return QueryType.CONSTRUCT;
  7.   if (query.isDescribeType())
  8.     return QueryType.DESCRIBE;
  9.   if (query.isAskType())
  10.     return QueryType.ASK;
  11.   return null;
  12. }

代码示例来源：origin: Galigator/openllet

  1. private static QueryType getQueryType(final Query query)
  2. {
  3.   if (query.isSelectType())
  4.     return QueryType.SELECT;
  5.   if (query.isConstructType())
  6.     return QueryType.CONSTRUCT;
  7.   if (query.isDescribeType())
  8.     return QueryType.DESCRIBE;
  9.   if (query.isAskType())
  10.     return QueryType.ASK;
  11.   return null;
  12. }

代码示例来源：origin: AtomGraph/Core

  1. /**
  2.  * Loads RDF model from an RDF dataset using a SPARQL query.
  3.  * Only <code>DESCRIBE</code> and <code>CONSTRUCT</code> queries can be used with this method.
  4.  * 
  5.  * @param dataset the RDF dataset to be queried
  6.  * @param query query object
  7.  * @return result RDF model
  8.  * @see <a href="http://www.w3.org/TR/2013/REC-sparql11-query-20130321/#describe">DESCRIBE</a>
  9.  * @see <a href="http://www.w3.org/TR/2013/REC-sparql11-query-20130321/#construct">CONSTRUCT</a>
  10.  */
  11. public Model loadModel(Dataset dataset, Query query)
  12. {
  13.   if (log.isDebugEnabled()) log.debug("Local Dataset Query: {}", query);
  14.   if (dataset == null) throw new IllegalArgumentException("Dataset must be not null");
  15.   if (query == null) throw new IllegalArgumentException("Query must be not null");
  16.   
  17.   try (QueryExecution qex = QueryExecutionFactory.create(query, dataset))
  18.   {        
  19.     if (query.isConstructType()) return qex.execConstruct();
  20.     if (query.isDescribeType()) return qex.execDescribe();
  21.   
  22.     throw new QueryExecException("Query to load Model must be CONSTRUCT or DESCRIBE");
  23.   }
  24.   catch (QueryExecException ex)
  25.   {
  26.     if (log.isDebugEnabled()) log.debug("Local query execution exception: {}", ex);
  27.     throw ex;
  28.   }
  29. }

代码示例来源：origin: AtomGraph/Core

  1. if (query.isConstructType() || query.isDescribeType())

代码示例来源：origin: apache/jena

  1. static private String labelForQuery(Query q) {
  2.   if ( q.isSelectType() )     return "SELECT" ; 
  3.   if ( q.isConstructType() )  return "CONSTRUCT" ; 
  4.   if ( q.isDescribeType() )   return "DESCRIBE" ; 
  5.   if ( q.isAskType() )        return "ASK" ;
  6.   if ( q.isJsonType() )       return "JSON" ;
  7.   return "<<unknown>>" ;
  8. }

代码示例来源：origin: apache/jena

  1. @Override
  2. public void visitDescribeResultForm(Query query1)
  3. {
  4.   check("Not both DESCRIBE queries", query2.isDescribeType()) ;
  5.   check("Result variables", 
  6.      query1.getResultVars(), query2.getResultVars() ) ;
  7.   check("Result URIs", 
  8.      query1.getResultURIs(), query2.getResultURIs() ) ;
  9.   
  10. }

代码示例来源：origin: apache/jena

  1. if ( ! this.isDescribeType() )
  2.     Log.warn(this, "setResultVars(): no query pattern") ;
  3.   return ;
  4. if ( isDescribeType() )

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

  1. if (sparql.isDescribeType())
  2.   throw new UnsupportedQueryException("DESCRIBE queries cannot be answered with PelletQueryEngine");

代码示例来源：origin: Galigator/openllet

  1. if (sparql.isDescribeType())
  2.   throw new UnsupportedQueryException("DESCRIBE queries cannot be answered with PelletQueryEngine");

代码示例来源：origin: apache/jena

  1. private QueryExecution createQueryExecution(Query query, String queryStringToSend) {
  2.   QueryExecution qExec = new QueryEngineHTTP(svcQuery, queryStringToSend, httpClient, httpContext);
  3.   QueryEngineHTTP qEngine = (QueryEngineHTTP)qExec;
  4.   // Set the accept header - use the most specific method. 
  5.   if ( query != null ) {
  6.     if ( query.isSelectType() && acceptSelectResult != null )
  7.       qEngine.setAcceptHeader(acceptSelectResult);
  8.     if ( query.isAskType() && acceptAskResult != null )
  9.       qEngine.setAcceptHeader(acceptAskResult);
  10.     if ( ( query.isConstructType() || query.isDescribeType() ) && acceptGraph != null )
  11.       qEngine.setAcceptHeader(acceptGraph);
  12.     if ( query.isConstructQuad() )
  13.       qEngine.setDatasetContentType(acceptDataset);
  14.   }
  15.   // Use the general one.
  16.   if ( qEngine.getAcceptHeader() == null && acceptSparqlResults != null )
  17.     qEngine.setAcceptHeader(acceptSparqlResults);
  18.   // Make sure it was set somehow.
  19.   if ( qEngine.getAcceptHeader() == null )
  20.     throw new JenaConnectionException("No Accept header");   
  21.   return qExec ;
  22. }

代码示例来源：origin: apache/jena

  1. } else if (q2.isAskType()) {
  2.   retval.setQueryAskType();
  3. } else if (q2.isDescribeType())

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

  1. } else if (q2.isAskType()) {
  2.   retval.setQueryAskType();
  3. } else if (q2.isDescribeType())

代码示例来源：origin: apache/jena

  1. public static void executeQuery(Prologue prologue, QueryExecution queryExecution, ResultsFormat outputFormat) {
  2.   Query query = queryExecution.getQuery() ;
  3.   if ( prologue == null )
  4.     prologue = query.getPrologue() ;
  5.   if ( prologue == null )
  6.     prologue = dftPrologue ;
  7.   if ( query.isSelectType() )
  8.     doSelectQuery(prologue, queryExecution, outputFormat) ;
  9.   else if ( query.isDescribeType() )
  10.     doDescribeQuery(prologue, queryExecution, outputFormat) ;
  11.   else if ( query.isConstructQuad() )
  12.     // Before isConstructType.
  13.     doConstructQuadsQuery(prologue, queryExecution, outputFormat) ;
  14.   else if ( query.isConstructType() )
  15.     doConstructQuery(prologue, queryExecution, outputFormat) ;
  16.   else if ( query.isAskType() )
  17.     doAskQuery(prologue, queryExecution, outputFormat) ;
  18.   else if ( query.isJsonType() )
  19.     doJsonQuery(prologue, queryExecution, outputFormat) ;
  20.   else
  21.     throw new QueryException("Unrecognized query form");
  22. }

代码示例来源：origin: apache/jena

  1. } else if (query.isAskType()) {
  2. } else if (query.isDescribeType()) {
  3.   sTemp = new SelectHandler(aggHandler);
  4. } else if (query.isConstructType()) {

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

  1. private QueryExecution createQueryExecution(Query query, String queryStringToSend) {
  2.   QueryExecution qExec = new QueryEngineHTTP(svcQuery, queryStringToSend, httpClient, httpContext);
  3.   QueryEngineHTTP qEngine = (QueryEngineHTTP)qExec;
  4.   // Set the accept header - use the most specific method. 
  5.   if ( query != null ) {
  6.     if ( query.isSelectType() && acceptSelectResult != null )
  7.       qEngine.setAcceptHeader(acceptSelectResult);
  8.     if ( query.isAskType() && acceptAskResult != null )
  9.       qEngine.setAcceptHeader(acceptAskResult);
  10.     if ( ( query.isConstructType() || query.isDescribeType() ) && acceptGraph != null )
  11.       qEngine.setAcceptHeader(acceptGraph);
  12.     if ( query.isConstructQuad() )
  13.       qEngine.setDatasetContentType(acceptDataset);
  14.   }
  15.   // Use the general one.
  16.   if ( qEngine.getAcceptHeader() == null && acceptSparqlResults != null )
  17.     qEngine.setAcceptHeader(acceptSparqlResults);
  18.   // Make sure it was set somehow.
  19.   if ( qEngine.getAcceptHeader() == null )
  20.     throw new JenaConnectionException("No Accept header");   
  21.   return qExec ;
  22. }

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

  1. } else if (query.isAskType()) {
  2. } else if (query.isDescribeType()) {
  3.   sTemp = new SelectHandler(aggHandler);
  4. } else if (query.isConstructType()) {

代码示例来源：origin: apache/jena

  1. public void visit(QueryVisitor visitor)
  2. {
  3.   visitor.startVisit(this) ;
  4.   visitor.visitResultForm(this) ;
  5.   visitor.visitPrologue(this) ;
  6.   if ( this.isSelectType() )
  7.     visitor.visitSelectResultForm(this) ;
  8.   if ( this.isConstructType() )
  9.     visitor.visitConstructResultForm(this) ;
  10.   if ( this.isDescribeType() )
  11.     visitor.visitDescribeResultForm(this) ;
  12.   if ( this.isAskType() )
  13.     visitor.visitAskResultForm(this) ;
  14.   if ( this.isJsonType() )
  15.     visitor.visitJsonResultForm(this) ;
  16.   visitor.visitDatasetDecl(this) ;
  17.   visitor.visitQueryPattern(this) ;
  18.   visitor.visitGroupBy(this) ;
  19.   visitor.visitHaving(this) ;
  20.   visitor.visitOrderBy(this) ;
  21.   visitor.visitOffset(this) ;
  22.   visitor.visitLimit(this) ;
  23.   visitor.visitValues(this) ;
  24.   visitor.finishVisit(this) ;
  25. }

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