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

Query.setOffset介绍

暂无

代码示例

代码示例来源：origin: apache/jena

  1. /**
  2.  * Set the offset for the results to return.
  3.  * Setting the offset to zero (0) or removes the offset.
  4.  * @param offset The offset to set.
  5.  */
  6. public void setOffset(int offset) {
  7.   query.setOffset(offset < 1 ? Query.NOLIMIT : offset);
  8. }

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

  1. /**
  2.  * Set the offset for the results to return.
  3.  * Setting the offset to zero (0) or removes the offset.
  4.  * @param offset The offset to set.
  5.  */
  6. public void setOffset(int offset) {
  7.   query.setOffset(offset < 1 ? Query.NOLIMIT : offset);
  8. }

代码示例来源：origin: apache/jena

  1. @Override
  2. public void visitOffset(Query query) {
  3.   newQuery.setOffset(query.getOffset());
  4. }

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

  1. @Override
  2. public void visitOffset(Query query) {
  3.   newQuery.setOffset(query.getOffset()) ;
  4. }

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

  1. query.setOffset(Query.NOLIMIT);
  2. } else {
  3.   query.setOffset(nextOffset);

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

  1. public static void applyRange(Query query, Range<Long> range) {
  2.   long offset = rangeToOffset(range);
  3.   long limit = rangeToLimit(range);
  4.   query.setOffset(offset);
  5.   query.setLimit(limit);
  6. }

代码示例来源：origin: apache/jena

  1. final public void OffsetClause() throws ParseException {
  2.            Token t ;
  3.  jj_consume_token(OFFSET);
  4.  t = jj_consume_token(INTEGER);
  5.   getQuery().setOffset(integerValue(t.image)) ;
  6. }

代码示例来源：origin: apache/jena

  1. final public void OffsetClause() throws ParseException {
  2.            Token t ;
  3.  jj_consume_token(OFFSET);
  4.  t = jj_consume_token(INTEGER);
  5.   getQuery().setOffset(integerValue(t.image)) ;
  6. }

代码示例来源：origin: apache/jena

  1. final public void OffsetClause() throws ParseException {
  2.            Token t ;
  3.  jj_consume_token(OFFSET);
  4.  t = jj_consume_token(INTEGER);
  5.   getQuery().setOffset(integerValue(t.image)) ;
  6. }

代码示例来源：origin: SmartDataAnalytics/DL-Learner

  1. @Override
  2. public Model extractFragment(OWLClass cls, int maxFragmentDepth) {
  3.   startTime = System.currentTimeMillis();
  4.   Model fragment = ModelFactory.createDefaultModel();
  5.   
  6.   Query query = buildConstructQuery(cls, maxFragmentDepth);
  7.   
  8.   long pageSize = PaginationUtils.adjustPageSize(qef, 10000);
  9.   query.setLimit(pageSize);
  10.   int offset = 0;
  11.   while(getRemainingRuntime() > 0){
  12.     query.setOffset(offset);System.out.println(query);
  13.     Model model = qef.createQueryExecution(query).execConstruct();
  14.     fragment.add(model);
  15.     offset += pageSize;
  16.   }
  17.   return fragment;
  18. }

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

  1. @Override
  2. public QueryExecutionCompare createQueryExecution(Query query) {
  3.   if(removeSlices) {
  4.     query = (Query)query.clone();
  5.     query.setLimit(Query.NOLIMIT);
  6.     query.setOffset(Query.NOLIMIT);
  7.   }
  8.   //boolean isOrdered = !query.getOrderBy().isEmpty();
  9.   QueryExecution qea = a.createQueryExecution(query);
  10.   QueryExecution qeb = b.createQueryExecution(query);
  11.   QueryExecutionCompare result = new QueryExecutionCompare(query, qea, qeb, false);
  12.   //QueryExecution result = QueryExecutionWrapper.wrap(tmp);
  13.   return result;
  14. }

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

  1. public PaginationQueryIterator createQueryIterator(Long offset, Long limit) {
  3.     long o = offset == null ? 0 : offset;
  4.     long l = limit == null ? Long.MAX_VALUE : limit;
  6.     long queryOffset = proto.getOffset() == Query.NOLIMIT ? 0 : proto.getOffset();
  8.     long itemOffset = queryOffset + o;
  10.     long queryLimit = proto.getLimit() == Query.NOLIMIT ? Long.MAX_VALUE : proto.getLimit() - o;
  12.     long itemLimit = Math.min(queryLimit, l);
  13.     itemLimit = itemLimit == Long.MAX_VALUE ? Query.NOLIMIT : itemLimit;
  15.     Query clone = proto.cloneQuery();
  16.     clone.setOffset(itemOffset);
  17.     clone.setLimit(itemLimit);
  19.     PaginationQueryIterator result = new PaginationQueryIterator(clone, pageSize);
  20.     return result;
  21.   }
  22. }

代码示例来源：origin: tarql/tarql

  1. /**
  2.  * Sets up a new query execution.
  3.  * 
  4.  * @param source The input CSV file
  5.  * @param options Configuration options for the CSV file
  6.  * @param query The input query
  7.  */
  8. public TarqlQueryExecution(InputStreamSource source, CSVOptions options, TarqlQuery query) {
  9.   if (options == null) {
  10.     options = new CSVOptions();
  11.   }
  12.   if (options.hasColumnNamesInFirstRow() == null) {
  13.     // Presence or absence of header row was not specified on command line or FROM clause.
  14.     // So we fall back to the convention where OFFSET 1 in the query
  15.     // indicates that a header is present. To make that work, we
  16.     // set the OFFSET to 0 and tell the parser to gobble up the first
  17.     // row for column names.
  18.     options = new CSVOptions(options);
  19.     Query firstQuery = query.getQueries().get(0);
  20.     if (firstQuery.getOffset() == 1) {
  21.       options.setColumnNamesInFirstRow(true);
  22.       firstQuery.setOffset(0);
  23.     }
  24.   }
  25.   table = new CSVTable(source, options);
  26.   tq = query;
  27. }

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

  1. @Override
  2. public void visit(OpSlice opSlice)
  3. {
  4.   if ( opSlice.getStart() != Query.NOLIMIT )
  5.     query.setOffset(opSlice.getStart()) ;
  6.   if ( opSlice.getLength() != Query.NOLIMIT )
  7.     query.setLimit(opSlice.getLength()) ;
  8.   opSlice.getSubOp().visit(this) ;
  9. }

代码示例来源：origin: apache/jena

  1. /**
  2.  * Copy all the modifications from the Solution Modifier argument
  3.  * @param solutionModifier The solution modifier to copy from.
  4.  */
  5. public void addAll(SolutionModifierHandler solutionModifier) {
  6.   List<SortCondition> lst = solutionModifier.query.getOrderBy();
  7.   if (lst != null) {
  8.     for (SortCondition sc : lst) {
  9.       query.addOrderBy(sc);
  10.     }
  11.   }
  12.   query.getGroupBy().addAll(solutionModifier.query.getGroupBy());
  13.   query.getHavingExprs().addAll(solutionModifier.query.getHavingExprs());
  14.   query.setLimit(solutionModifier.query.getLimit());
  15.   query.setOffset(solutionModifier.query.getOffset());
  16. }

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

  1. /**
  2.  * Copy all the modifications from the Solution Modifier argument
  3.  * @param solutionModifier The solution modifier to copy from.
  4.  */
  5. public void addAll(SolutionModifierHandler solutionModifier) {
  6.   List<SortCondition> lst = solutionModifier.query.getOrderBy();
  7.   if (lst != null) {
  8.     for (SortCondition sc : lst) {
  9.       query.addOrderBy(sc);
  10.     }
  11.   }
  12.   query.getGroupBy().addAll(solutionModifier.query.getGroupBy());
  13.   query.getHavingExprs().addAll(solutionModifier.query.getHavingExprs());
  14.   query.setLimit(solutionModifier.query.getLimit());
  15.   query.setOffset(solutionModifier.query.getOffset());
  16. }

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

  1. @Override
  2. public QueryExecution createQueryExecution(Query query) {
  3.   Query q = query.cloneQuery();
  4.   long offset = q.getOffset() == Query.NOLIMIT ? 0 : q.getOffset();
  5.   long limit = q.getLimit();
  6.   long o = (offset / pageExpandSize) * pageExpandSize;
  7.   long l;
  8.   if(limit != Query.NOLIMIT) {
  9.     long target = offset + limit;
  10.     long t = ((target / pageExpandSize) + 1) * pageExpandSize;
  11.     l = t - o;
  12.   } else {
  13.     l = Query.NOLIMIT;
  14.   }
  15.   long start = o - offset;
  16.   // Align offset and target to pageExpandSize boundaries
  17.   q.setOffset(o);
  18.   q.setLimit(l);
  19.   QueryExecution qe = qef.createQueryExecution(q);
  20.   //QueryExecutionRange result = new QueryExecutionRange(qe, start, l);
  21.   QueryExecution result = null;
  22.   return result;
  23. }

代码示例来源：origin: SmartDataAnalytics/DL-Learner

  1. query.setOffset(i++ * pageSize);
  2. QueryExecution qe = ksQef.createQueryExecution(query);
  3. Model tmp = qe.execConstruct();

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

  1. public static Query createQueryList(UnaryRelation concept, Long limit, Long offset) {
  2.     Query result = new Query();
  3.     result.setQuerySelectType();
  4.     result.setDistinct(true);
  6.     result.setLimit(limit == null ? Query.NOLIMIT : limit);
  7.     result.setOffset(offset == null ? Query.NOLIMIT : offset);
  9.     result.getProject().add(concept.getVar());
  10.     Element e = concept.getElement();
  11.     if(e instanceof ElementSubQuery) {
  12.       e = ElementUtils.createElementGroup(e);
  13.     }
  15.     result.setQueryPattern(e);
  17. //        String str = result.toString();
  18. //        System.out.println(str);
  19.     return result;
  20.   }

代码示例来源：origin: vivo-project/Vitro

  1. @Override
  2. public Model getTriples(RDFNode subject, RDFNode predicate, RDFNode object, long limit, long offset) throws RDFServiceException {
  3.   Query query = QueryFactory.create("CONSTRUCT WHERE { ?s ?p ?o }", Syntax.syntaxSPARQL_11);
  4.   QuerySolutionMap map = new QuerySolutionMap();
  5.   if ( subject != null ) {
  6.     map.add("s", subject);
  7.   }
  8.   if ( predicate != null ) {
  9.     map.add("p", predicate);
  10.   }
  11.   if ( object != null ) {
  12.     map.add("o", object);
  13.   }
  14.   query.setOffset(offset);
  15.   query.setLimit(limit);
  16.   Model triples = ModelFactory.createDefaultModel();
  17.   DatasetWrapper dw = getDatasetWrapper();
  18.   try {
  19.     Dataset d = dw.getDataset();
  20.     try (QueryExecution qexec = QueryExecutionFactory.create(query, d, map)) {
  21.       qexec.execConstruct(triples);
  22.     }
  23.     return triples;
  24.   } finally {
  25.     dw.close();
  26.   }
  27. }

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