Java SPARQLRepository类代码示例

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本文整理汇总了Java中org.eclipse.rdf4j.repository.sparql.SPARQLRepository类的典型用法代码示例。如果您正苦于以下问题：Java SPARQLRepository类的具体用法？Java SPARQLRepository怎么用？Java SPARQLRepository使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

SPARQLRepository类属于org.eclipse.rdf4j.repository.sparql包，在下文中一共展示了SPARQLRepository类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: executeQuery

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Execute query and return the number of results
 * @param query SPARQL 	query
 * @param bgpGroups BGPs
 * @param stmtToSources Triple Pattern to sources
 * @param repo  repository
 * @return Number of results
 * @throws RepositoryException
 * @throws MalformedQueryException
 * @throws QueryEvaluationException
 */
public static int executeQuery(String query, HashMap<Integer, List<StatementPattern>> bgpGroups, Map<StatementPattern, List<StatementSource>> stmtToSources, SPARQLRepository repo) throws RepositoryException, MalformedQueryException, QueryEvaluationException {
	String newQuery = QueryRewriting.doQueryRewriting(query,bgpGroups,stmtToSources);
		System.out.println(newQuery);
	TupleQuery tupleQuery = repo.getConnection().prepareTupleQuery(QueryLanguage.SPARQL, newQuery); 
	int count = 0;
	TupleQueryResult result = tupleQuery.evaluate();
	while(result.hasNext())
	{
		//System.out.println(result.next());
		result.next();
		count++;
	}

	return count;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:27，代码来源:ExecuteTBSSQuery.java

示例2: executeQuery

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
* Execute query and return the number of results
* @param query SPARQL 	query
* @param bgpGroups BGPs
* @param stmtToSources Triple Pattern to sources
* @param repo  repository
* @return Number of results
* @throws RepositoryException
* @throws MalformedQueryException
* @throws QueryEvaluationException
*/
public static int executeQuery(String query, HashMap<Integer, List<StatementPattern>> bgpGroups, Map<StatementPattern, List<StatementSource>> stmtToSources, SPARQLRepository repo) throws RepositoryException, MalformedQueryException, QueryEvaluationException {
	String newQuery = QueryRewriting.doQueryRewriting(query,bgpGroups,stmtToSources);
	//	System.out.println(newQuery);
		TupleQuery tupleQuery = repo.getConnection().prepareTupleQuery(QueryLanguage.SPARQL, newQuery); 
		int count = 0;
		TupleQueryResult result = tupleQuery.evaluate();
		while(result.hasNext())
		{
			//System.out.println(result.next());
			result.next();
			count++;
		}

	return count;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:27，代码来源:ExecuteHibiscusQuery.java

示例3: getObj

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of triple for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 * @throws RepositoryException 
 * @throws MalformedQueryException 
 * @throws QueryEvaluationException 
 */
public static double getObj(String pred, String endpoint) throws RepositoryException, MalformedQueryException, QueryEvaluationException {
	String strQuery = "SELECT  (COUNT(DISTINCT ?o) AS ?objs) " + // 
			"WHERE " +
			"{" +
       		"?s <"+pred+"> ?o " +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("objs").stringValue());
	} finally {
		conn.close();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:26，代码来源:TBSSSummariesGenerator.java

示例4: getSubjectsCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct subjects of a dataset
 * @return count 
 */
public static Long getSubjectsCount(String endpoint) {
	String strQuery = "SELECT  (COUNT(DISTINCT ?s) AS ?sbjts) " + // 
			"WHERE " +
			"{" +
       		"?s ?p ?o " +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("sbjts").stringValue());
	} finally {
		conn.close();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:21，代码来源:TBSSSummariesGenerator.java

示例5: getTripleCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of triple for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 */
public static Long getTripleCount(String pred, String endpoint) {
	String strQuery = "SELECT  (COUNT(*) AS ?triples) " + // 
			"WHERE " +
			"{" +
       		"?s <"+pred+"> ?o " +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		String v = rs.next().getValue("triples").stringValue();
		rs.close();
		return Long.parseLong(v);
	} finally {
		conn.close();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:25，代码来源:TBSSSummariesGenerator.java

示例6: getDistinctSubjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
public static Long getDistinctSubjectCount(String endpoint) {
	String strQuery = "SELECT  (COUNT(distinct ?s) AS ?triples) " + // 
			"WHERE " +
			"{" +
       		"?s ?p ?o " +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		String v = rs.next().getValue("triples").stringValue();
		rs.close();
		return Long.parseLong(v);
	} finally {
		conn.close();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:19，代码来源:TBSSSummariesGenerator.java

示例7: getDistinctObjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
public static Long getDistinctObjectCount(String endpoint) {
	String strQuery = "SELECT  (COUNT(distinct ?o) AS ?triples) " + // 
			"WHERE " +
			"{" +
       		"?s ?p ?o " +
			"FILTER isIRI(?o)" +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		String v = rs.next().getValue("triples").stringValue();
		rs.close();
		return Long.parseLong(v);
	} finally {
		conn.close();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:20，代码来源:TBSSSummariesGenerator.java

示例8: getPredicates

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get Predicate List
 * @param endPointUrl SPARQL endPoint Url
 * @param graph Named graph
 * @return  predLst Predicates List
 */
private static List<String> getPredicates(String endPointUrl, String graph)
{
	List<String>  predLst = new ArrayList<String>();
	String strQuery = getPredQury(graph);
	SPARQLRepository repo = createSPARQLRepository(endPointUrl);
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult res = query.evaluate();
		while (res.hasNext()) 
		{
			String pred = res.next().getValue("p").toString();
			predLst.add(pred);	  		
		}
		res.close();
	} finally {
		conn.close();
	}
	return predLst;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:27，代码来源:TBSSSummariesGenerator.java

示例9: getDistinctObj

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct objects for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 */
public static long getDistinctObj(String pred, String endpoint) {
	String strQuery = "SELECT  (COUNT(DISTINCT ?o) AS ?objs) " + // 
			"WHERE " +
			"{" +
       		"?s <" + pred + "> ?o " +
       		"} " ;
	SPARQLRepository repo = new SPARQLRepository(endpoint);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("objs").stringValue());
	} finally {
		conn.close();
		repo.shutDown();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:25，代码来源:SemagrowSummariesGenerator.java

示例10: getDistinctSbj

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct objects for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 */
public static long getDistinctSbj(String pred, String endpoint) {
	String strQuery = "SELECT  (COUNT(DISTINCT ?s) AS ?subjs) " + // 
			"WHERE " +
			"{" +
       		"?s <" + pred + "> ?o " +
       		"} " ;
	SPARQLRepository repo = new SPARQLRepository(endpoint);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("subjs").stringValue());
	} finally {
		conn.close();
		repo.shutDown();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:25，代码来源:SemagrowSummariesGenerator.java

示例11: getSubjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct subjects of a dataset
 * @return count 
 */
public static long getSubjectCount(String endpoint) {
	String strQuery = "SELECT  (COUNT(DISTINCT ?s) AS ?sbjts) " + // 
			"WHERE " +
			"{" +
       		"?s ?p ?o " +
       		"} " ;
	SPARQLRepository repo = new SPARQLRepository(endpoint);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("sbjts").stringValue());
	} finally {
		conn.close();
		repo.shutDown();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:23，代码来源:SemagrowSummariesGenerator.java

示例12: getObjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct objects of a dataset
 * @return count
 */
public static long getObjectCount(String endpoint) {
	String strQuery = "SELECT  (COUNT(DISTINCT ?o) AS ?objts) " + // 
			"WHERE " +
			"{" +
       		"?s ?p ?o " +
       		"} " ;
	SPARQLRepository repo = new SPARQLRepository(endpoint);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("objts").stringValue());
	} finally {
		conn.close();
		repo.shutDown();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:23，代码来源:SemagrowSummariesGenerator.java

示例13: getTripleCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of triple for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 */
public static Long getTripleCount(String pred, String endpoint) {
	String strQuery = "SELECT  (COUNT(?s) AS ?triples) " + // 
			"WHERE " +
			"{" +
       		"?s <"+pred+"> ?o " +
       		"} " ;
	SPARQLRepository repo = new SPARQLRepository(endpoint);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult rs = query.evaluate();
		return Long.parseLong(rs.next().getValue("triples").stringValue());
	} finally {
		conn.close();
		repo.shutDown();
	}
}

开发者ID:dice-group，项目名称:CostFed，代码行数:25，代码来源:SemagrowSummariesGenerator.java

示例14: getPredicates

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get Predicate List
 * @param endPointUrl SPARQL endPoint Url
 * @param graph Named graph
 * @return  predLst Predicates List
 */
private static List<String> getPredicates(String endPointUrl, String graph)
{
	List<String>  predLst = new ArrayList<String>();
	String strQuery = getPredQuery(graph);
	SPARQLRepository repo = new SPARQLRepository(endPointUrl);
	repo.initialize();
	RepositoryConnection conn = repo.getConnection();
	try {
		TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
		TupleQueryResult res = query.evaluate();
		while (res.hasNext()) 
		{
			String pred = res.next().getValue("p").toString();
			predLst.add(pred);	  		
		}
	} finally {
		conn.close();
		repo.shutDown();
	}
	return predLst;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:28，代码来源:SemagrowSummariesGenerator.java

示例15: getTripleCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of triple for a predicate
 * @param pred Predicate
 * @param m model
 * @return triples
 */
public static Long getTripleCount(String pred, String endpoint) {
    String strQuery = "SELECT  (COUNT(*) AS ?triples) " + // 
            "WHERE " +
            "{" +
            "?s <"+pred+"> ?o " +
            "} " ;
    SPARQLRepository repo = createSPARQLRepository(endpoint);
    RepositoryConnection conn = repo.getConnection();
    try {
        TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
        TupleQueryResult rs = query.evaluate();
        String v = rs.next().getValue("triples").stringValue();
        rs.close();
        return Long.parseLong(v);
    } finally {
        conn.close();
    }
}

开发者ID:dice-group，项目名称:CostFed，代码行数:25，代码来源:SummaryGenerator.java

示例16: getDistinctSubjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
public static Long getDistinctSubjectCount(String endpoint) {
    String strQuery = "SELECT  (COUNT(distinct ?s) AS ?triples) " + 
            "WHERE " +
            "{" +
            "?s ?p ?o " +
            "} " ;
    SPARQLRepository repo = createSPARQLRepository(endpoint);
    RepositoryConnection conn = repo.getConnection();
    try {
        TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
        TupleQueryResult rs = query.evaluate();
        String v = rs.next().getValue("triples").stringValue();
        rs.close();
        return Long.parseLong(v);
    } finally {
        conn.close();
    }
}

开发者ID:dice-group，项目名称:CostFed，代码行数:19，代码来源:SummaryGenerator.java

示例17: getDistinctObjectCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
public static Long getDistinctObjectCount(String endpoint) {
    String strQuery = "SELECT  (COUNT(distinct ?o) AS ?triples) " +
            "WHERE " +
            "{" +
            "?s ?p ?o " +
            "FILTER isIRI(?o)" +
            "} " ;
    SPARQLRepository repo = createSPARQLRepository(endpoint);
    RepositoryConnection conn = repo.getConnection();
    try {
        TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
        TupleQueryResult rs = query.evaluate();
        String v = rs.next().getValue("triples").stringValue();
        rs.close();
        return Long.parseLong(v);
    } finally {
        conn.close();
    }
}

开发者ID:dice-group，项目名称:CostFed，代码行数:20，代码来源:SummaryGenerator.java

示例18: getPredicates

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get Predicate List
 * @param endPointUrl SPARQL endPoint Url
 * @param graph Named graph
 * @return  predLst Predicates List
 * @throws MalformedQueryException 
 * @throws RepositoryException 
 * @throws QueryEvaluationException 
 */
private static ArrayList<String> getPredicates(String endPointUrl, String graph) throws RepositoryException, MalformedQueryException, QueryEvaluationException 
{
	ArrayList<String>  predLst = new ArrayList<String>();
	String strQuery = "";
	if(graph==null)
		strQuery = getPredQury();
	else
		strQuery = getPredQury(graph);
	SPARQLRepository repo = new SPARQLRepository(endPointUrl);
	TupleQuery query = repo.getConnection().prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
	TupleQueryResult res = query.evaluate();
	while (res.hasNext()) 
	{   String pred = res.next().getValue("p").toString();
	predLst.add(pred);	  		
	}
	repo.getConnection().close();
	return predLst;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:28，代码来源:HibiscusSummariesGenerator.java

示例19: create

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
@Override
public Backend create(Model backendModel, IRI identifier) {
  Literal endpoint =
      Models.objectLiteral(backendModel.filter(identifier, ELMO.ENDPOINT, null)).orElseThrow(
          () -> new ConfigurationException(String.format(
              "No <%s> statement has been found for backend <%s>.", ELMO.ENDPOINT, identifier)));

  if (!XMLSchema.ANYURI.equals(endpoint.getDatatype())) {
    throw new ConfigurationException(
        String.format("Object <%s> for backend <%s> must be of datatype <%s>.", ELMO.ENDPOINT,
            identifier, XMLSchema.ANYURI));
  }

  SPARQLRepository repository = new SPARQLRepository(endpoint.stringValue());

  repository.initialize();

  return new SparqlBackend.Builder(identifier, repository, informationProductFactory).build();
}

开发者ID:dotwebstack，项目名称:dotwebstack-framework，代码行数:20，代码来源:SparqlBackendFactory.java

示例20: getObjectsCount

import org.eclipse.rdf4j.repository.sparql.SPARQLRepository; //导入依赖的package包/类
/**
 * Get total number of distinct objects of a dataset
 * @return count
 * @throws RepositoryException 
 * @throws MalformedQueryException 
 * @throws QueryEvaluationException 
 */
public static Long getObjectsCount(String endpoint) throws RepositoryException, MalformedQueryException, QueryEvaluationException {
	long count = 0;
	String strQuery = "SELECT  (COUNT(DISTINCT ?o) AS ?objts) " + // 
			"WHERE " +
			"{" +

       		"?s ?p ?o " +
       		"} " ;
	SPARQLRepository repo = createSPARQLRepository(endpoint);
	TupleQuery query = repo.getConnection().prepareTupleQuery(QueryLanguage.SPARQL, strQuery); 
	TupleQueryResult rs = query.evaluate();
	while( rs.hasNext() ) 
	{
		count = Long.parseLong(rs.next().getValue("objts").stringValue());

	}
	rs.close();
	return count;
}

开发者ID:dice-group，项目名称:CostFed，代码行数:27，代码来源:TBSSSummariesGenerator.java

注：本文中的org.eclipse.rdf4j.repository.sparql.SPARQLRepository类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Java SPARQLRepository类代码示例

示例1: executeQuery

示例2: executeQuery

示例3: getObj

示例4: getSubjectsCount

示例5: getTripleCount

示例6: getDistinctSubjectCount

示例7: getDistinctObjectCount

示例8: getPredicates

示例9: getDistinctObj

示例10: getDistinctSbj

示例11: getSubjectCount

示例12: getObjectCount

示例13: getTripleCount

示例14: getPredicates

示例15: getTripleCount

示例16: getDistinctSubjectCount

示例17: getDistinctObjectCount

示例18: getPredicates

示例19: create

示例20: getObjectsCount

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