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

Query.cloneQuery介绍

[英]Makes a copy of this query. Copies by parsing a query from the serialized form of this query
[中]复制此查询。通过分析此查询的序列化形式中的查询进行复制

代码示例

代码示例来源：origin: apache/jena

  1. /**
  2.  * Make a query from another one by deep copy (a clone).
  3.  * The returned query will be .equals to the original.
  4.  * The returned query can be mutated without changing the
  5.  * original (at which point it will stop being .equals)
  6.  * 
  7.  * @param originalQuery  The query to clone.
  8.  *   
  9.  */
  10. static public Query create(Query originalQuery)
  11. {
  12.   return originalQuery.cloneQuery() ;
  13. }

代码示例来源：origin: apache/jena

  1. @Override
  2. public Object clone() { return cloneQuery() ; }

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

  1. /**
  2.  * Returns a pruned copy of the given query.
  3.  * @param query the query
  4.  * @return a pruned copy of the given query
  5.  */
  6. public Query pruneQuery(Query query) {
  7.   Query copy = query.cloneQuery();
  8.   copy.getQueryPattern().visit(this);
  9.   return copy;
  10. }

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

  1. @Override
  2. public QueryExecution createQueryExecution(Query query) {
  3.   query = query.cloneQuery();
  4.   PaginationQueryIterator queryIterator = new PaginationQueryIterator(query, pageSize);
  5.   return new QueryExecutionIterated(query, decoratee, queryIterator);
  6. }

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

  1. @Override
  2.   public Query apply(Query query) {
  3.     Query result = doClone ? query.cloneQuery() : query;
  5.     result.getPrefixMapping().setNsPrefixes(prefixMapping);
  6.     return result;
  7.   }
  8. }

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

  1. @Override
  2. public QueryExecution createQueryExecution(Query query) {
  3.   Query clone = query.cloneQuery();
  4.   QueryUtils.applyDatasetDescription(clone, datasetDescription);
  5.   QueryExecution result = super.createQueryExecution(clone);
  6.   return result;
  7. }

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

  1. @Override
  2. public Model fetch(String graphName) {
  3.   Query tmp = QUERY_CONSTRUCT_SPO.cloneQuery();
  4.   tmp.addGraphURI(graphName);
  5.   Model result = queryConn.queryConstruct(tmp);
  6.   return result;
  7. }

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

  1. public static Query transform(Query query, Map<Node, BinaryRelation> virtualPredicates, boolean cloneOnChange) {
  2.   Element oldQueryPattern = query.getQueryPattern();
  3.   Element newQueryPattern = transform(oldQueryPattern, virtualPredicates);
  4.   Query result;
  5.   if(oldQueryPattern == newQueryPattern) {
  6.     result = query;
  7.   } else {
  8.     result = cloneOnChange ? query.cloneQuery() : query;
  9.     result.setQueryPattern(newQueryPattern);
  10.   }
  11.   return result;
  12. }

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

  1. @Override
  2. public QueryExecution createQueryExecution(Query query) {
  3.   Query q = doClone ? query.cloneQuery() : query;
  4.   q.getPrefixMapping().setNsPrefixes(prefixMapping);
  5.   QueryExecution result = super.createQueryExecution(q);
  6.   return result;
  7. }

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

  1. public static Query fixVarNames(Query query) {
  2.   Query result = query.cloneQuery();
  3.   Element element = query.getQueryPattern();
  4.   Element repl = ElementUtils.fixVarNames(element);
  5.   result.setQueryPattern(repl);
  6.   return result;
  7. }

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

  1. public QueryExecution createQueryExecution(Query query) {
  2.   if(limit != null) {
  3.     if(query.getLimit() == Query.NOLIMIT) {
  4.       if(doCloneQuery) {
  5.         query = query.cloneQuery();
  6.       }
  7.       query.setLimit(limit);
  8.     } else {
  9.       long adjustedLimit = Math.min(limit, query.getLimit());
  10.       if(adjustedLimit != query.getLimit()) {
  11.         if(doCloneQuery) {
  12.           query = query.cloneQuery();
  13.         }
  14.         query.setLimit(adjustedLimit);
  15.       }
  16.     }
  17.   }
  18.   return super.createQueryExecution(query);
  19. }

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

  1. @Override
  2.   public Flowable<Binding> apply(Range<Long> range) {
  3.     Query clone = query.cloneQuery();
  4.     QueryUtils.applyRange(clone, range);
  6.     Flowable<Binding> result = ReactiveSparqlUtils.execSelect(() -> qef.createQueryExecution(clone));
  7. //        QueryExecution qe = qef.createQueryExecution(clone);
  8. //        ResultSet rs = qe.execSelect();
  9. //
  10. //
  11. //        Iterator<Binding> it = new IteratorResultSetBinding(rs);
  12. //        Stream<Binding> result = Streams.stream(it);
  13. //        result.onClose(qe::close);
  15.     return result;
  16. //
  17. //        ClosableIterator<Binding> result = new IteratorClosable<>(it, () -> qe.close());
  18. //        return result;
  19.   }

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

  1. @Override
  2.   public Flowable<Binding> apply(Range<Long> range) {
  3.     Query clone = query.cloneQuery();
  4.     QueryUtils.applyRange(clone, range);
  6.     Flowable<Binding> result = ReactiveSparqlUtils.execSelect(() -> qef.createQueryExecution(clone));
  7. //        QueryExecution qe = qef.createQueryExecution(clone);
  8. //        ResultSet rs = qe.execSelect();
  9. //
  10. //
  11. //        Iterator<Binding> it = new IteratorResultSetBinding(rs);
  12. //        Stream<Binding> result = Streams.stream(it);
  13. //        result.onClose(qe::close);
  15.     return result;
  16. //
  17. //        ClosableIterator<Binding> result = new IteratorClosable<>(it, () -> qe.close());
  18. //        return result;
  19.   }

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

  1. public static Query rewrite(Query query) {
  2.   DatasetDescription dd = query.getDatasetDescription();
  3.   Query result;
  4.   if(dd != null) {
  5.     result = query.cloneQuery();
  6.     Element before = result.getQueryPattern();
  7.     Element after = rewrite(before, dd);
  8.     result.setQueryPattern(after);
  9.   } else {
  10.     result = query;
  11.   }
  12.   return result;
  13. }

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

  1. private Iterator<Triple> executeConstructStreaming(Query query) {
  2.   if (!query.isConstructType()) {
  3.     throw new RuntimeException("CONSTRUCT query expected. Got: ["
  4.         + query.toString() + "]");
  5.   }
  6.   Query clone = query.cloneQuery();
  7.   clone.setQuerySelectType();
  8.   //Query selectQuery = QueryUtils.elementToQuery(query.getQueryPattern());
  9.   clone.setQueryResultStar(true);
  10.   ResultSetCloseable rs = executeCoreSelect(clone);
  11.   System.out.println("Executing query as: " + clone);
  12.   // insertPrefixesInto(result) ;
  13.   Template template = query.getConstructTemplate();
  14.   Iterator<Triple> result = new ConstructIterator(template, rs);
  15.   return result;
  16. }

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

  1. @Override
  2.   public Flowable<T> apply(Range<Long> range) {
  3.     Query clonedQuery = query.cloneQuery();
  4.     range = Range.atLeast(0l).intersection(range);
  5.     QueryUtils.applyRange(clonedQuery, range);
  7.     Flowable<T> result = obtainResultIterator(() -> qef.createQueryExecution(clonedQuery)); // new IteratorResultSetBinding(qe.execSelect());
  9. //        Stream<T> result = Streams.stream(it);
  10. //        result.onClose(() -> qe.close());
  11.     return result;
  12.   }

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

  1. /**
  2.  * Returns a modified SPARQL query such that it is similar but different by choosing one of the triple patterns and use
  3.  * the negation of its existence.
  4.  * @param query
  5.  */
  6. public Query generateSPARQLQuery(Query query){
  7.   //choose a random triple for the modification
  8.   List<Triple> triplePatterns = new ArrayList<>(triplePatternExtractor.extractTriplePattern(query));
  9.   Collections.shuffle(triplePatterns, randomGen);
  10.   triple = triplePatterns.get(0);
  11.   
  12.   Query modifiedQuery = query.cloneQuery();
  13.   modifiedQuery.getQueryPattern().visit(this);
  14.   logger.info("Negative examples query:\n" + modifiedQuery.toString());
  15.   return modifiedQuery;
  16. }

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

  1. /**
  2.  * Returns a modified SPARQL query such that it is similar but different by choosing one of the triple patterns and use
  3.  * the negation of its existence.
  4.  * @param query the SPARQL query
  5.  */
  6. public Query generateSPARQLQuery(Query query){
  7.   //choose a random triple for the modification
  8.   List<Triple> triplePatterns = new ArrayList<>(triplePatternExtractor.extractTriplePattern(query));
  9.   Collections.shuffle(triplePatterns, randomGen);
  10.   triple = triplePatterns.get(0);
  11.   
  12.   Query modifiedQuery = query.cloneQuery();
  13.   modifiedQuery.getQueryPattern().visit(this);
  14.   logger.info("Negative examples query:\n" + modifiedQuery.toString());
  15.   return modifiedQuery;
  16. }

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: SmartDataAnalytics/jena-sparql-api

  1. public static Query createQueryCount(Query query, Var outputVar, Long itemLimit, Long rowLimit) {
  2.   Query subQuery = query.cloneQuery();
  3.   if(rowLimit != null) {
  4.     subQuery.setDistinct(false);
  5.     subQuery.setLimit(rowLimit);
  6.     subQuery = QueryGenerationUtils.wrapAsSubQuery(subQuery);
  7.     subQuery.setDistinct(true);
  8.   }
  9.   if(itemLimit != null) {
  10.     subQuery.setLimit(itemLimit);
  11.   }
  12.   Element esq = new ElementSubQuery(subQuery);
  13.   Query result = new Query();
  14.   Expr aggCount = result.allocAggregate(new AggCount());
  15.   result.setQuerySelectType();
  16.   result.getProject().add(outputVar, aggCount);
  17.   result.setQueryPattern(esq);
  18.   return result;
  19. }

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