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

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

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

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

代码示例来源：origin: apache/jena

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

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

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

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

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

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

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

代码示例来源：origin: apache/jena

final public void OffsetClause() throws ParseException {
           Token t ;
 jj_consume_token(OFFSET);
 t = jj_consume_token(INTEGER);
  getQuery().setOffset(integerValue(t.image)) ;
}

代码示例来源：origin: apache/jena

final public void OffsetClause() throws ParseException {
           Token t ;
 jj_consume_token(OFFSET);
 t = jj_consume_token(INTEGER);
  getQuery().setOffset(integerValue(t.image)) ;
}

代码示例来源：origin: apache/jena

final public void OffsetClause() throws ParseException {
           Token t ;
 jj_consume_token(OFFSET);
 t = jj_consume_token(INTEGER);
  getQuery().setOffset(integerValue(t.image)) ;
}

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

@Override
public Model extractFragment(OWLClass cls, int maxFragmentDepth) {
  startTime = System.currentTimeMillis();
  Model fragment = ModelFactory.createDefaultModel();
  
  Query query = buildConstructQuery(cls, maxFragmentDepth);
  
  long pageSize = PaginationUtils.adjustPageSize(qef, 10000);
  query.setLimit(pageSize);
  int offset = 0;
  while(getRemainingRuntime() > 0){
    query.setOffset(offset);System.out.println(query);
    Model model = qef.createQueryExecution(query).execConstruct();
    fragment.add(model);
    offset += pageSize;
  }
  return fragment;
}

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

@Override
public QueryExecutionCompare createQueryExecution(Query query) {
  if(removeSlices) {
    query = (Query)query.clone();
    query.setLimit(Query.NOLIMIT);
    query.setOffset(Query.NOLIMIT);
  }
  //boolean isOrdered = !query.getOrderBy().isEmpty();
  QueryExecution qea = a.createQueryExecution(query);
  QueryExecution qeb = b.createQueryExecution(query);
  QueryExecutionCompare result = new QueryExecutionCompare(query, qea, qeb, false);
  //QueryExecution result = QueryExecutionWrapper.wrap(tmp);
  return result;
}

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

public PaginationQueryIterator createQueryIterator(Long offset, Long limit) {

    long o = offset == null ? 0 : offset;
    long l = limit == null ? Long.MAX_VALUE : limit;

    long queryOffset = proto.getOffset() == Query.NOLIMIT ? 0 : proto.getOffset();

    long itemOffset = queryOffset + o;

    long queryLimit = proto.getLimit() == Query.NOLIMIT ? Long.MAX_VALUE : proto.getLimit() - o;

    long itemLimit = Math.min(queryLimit, l);
    itemLimit = itemLimit == Long.MAX_VALUE ? Query.NOLIMIT : itemLimit;

    Query clone = proto.cloneQuery();
    clone.setOffset(itemOffset);
    clone.setLimit(itemLimit);

    PaginationQueryIterator result = new PaginationQueryIterator(clone, pageSize);
    return result;
  }
}

代码示例来源：origin: tarql/tarql

/**
 * Sets up a new query execution.
 * 
 * @param source The input CSV file
 * @param options Configuration options for the CSV file
 * @param query The input query
 */
public TarqlQueryExecution(InputStreamSource source, CSVOptions options, TarqlQuery query) {
  if (options == null) {
    options = new CSVOptions();
  }
  if (options.hasColumnNamesInFirstRow() == null) {
    // Presence or absence of header row was not specified on command line or FROM clause.
    // So we fall back to the convention where OFFSET 1 in the query
    // indicates that a header is present. To make that work, we
    // set the OFFSET to 0 and tell the parser to gobble up the first
    // row for column names.
    options = new CSVOptions(options);
    Query firstQuery = query.getQueries().get(0);
    if (firstQuery.getOffset() == 1) {
      options.setColumnNamesInFirstRow(true);
      firstQuery.setOffset(0);
    }
  }
  table = new CSVTable(source, options);
  tq = query;
}

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

@Override
public void visit(OpSlice opSlice)
{
  if ( opSlice.getStart() != Query.NOLIMIT )
    query.setOffset(opSlice.getStart()) ;
  if ( opSlice.getLength() != Query.NOLIMIT )
    query.setLimit(opSlice.getLength()) ;
  opSlice.getSubOp().visit(this) ;
}

代码示例来源：origin: apache/jena

/**
 * Copy all the modifications from the Solution Modifier argument
 * @param solutionModifier The solution modifier to copy from.
 */
public void addAll(SolutionModifierHandler solutionModifier) {
  List<SortCondition> lst = solutionModifier.query.getOrderBy();
  if (lst != null) {
    for (SortCondition sc : lst) {
      query.addOrderBy(sc);
    }
  }
  query.getGroupBy().addAll(solutionModifier.query.getGroupBy());
  query.getHavingExprs().addAll(solutionModifier.query.getHavingExprs());
  query.setLimit(solutionModifier.query.getLimit());
  query.setOffset(solutionModifier.query.getOffset());
}

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

/**
 * Copy all the modifications from the Solution Modifier argument
 * @param solutionModifier The solution modifier to copy from.
 */
public void addAll(SolutionModifierHandler solutionModifier) {
  List<SortCondition> lst = solutionModifier.query.getOrderBy();
  if (lst != null) {
    for (SortCondition sc : lst) {
      query.addOrderBy(sc);
    }
  }
  query.getGroupBy().addAll(solutionModifier.query.getGroupBy());
  query.getHavingExprs().addAll(solutionModifier.query.getHavingExprs());
  query.setLimit(solutionModifier.query.getLimit());
  query.setOffset(solutionModifier.query.getOffset());
}

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

@Override
public QueryExecution createQueryExecution(Query query) {
  Query q = query.cloneQuery();
  long offset = q.getOffset() == Query.NOLIMIT ? 0 : q.getOffset();
  long limit = q.getLimit();
  long o = (offset / pageExpandSize) * pageExpandSize;
  long l;
  if(limit != Query.NOLIMIT) {
    long target = offset + limit;
    long t = ((target / pageExpandSize) + 1) * pageExpandSize;
    l = t - o;
  } else {
    l = Query.NOLIMIT;
  }
  long start = o - offset;
  // Align offset and target to pageExpandSize boundaries
  q.setOffset(o);
  q.setLimit(l);
  QueryExecution qe = qef.createQueryExecution(q);
  //QueryExecutionRange result = new QueryExecutionRange(qe, start, l);
  QueryExecution result = null;
  return result;
}

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

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

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

public static Query createQueryList(UnaryRelation concept, Long limit, Long offset) {
    Query result = new Query();
    result.setQuerySelectType();
    result.setDistinct(true);

    result.setLimit(limit == null ? Query.NOLIMIT : limit);
    result.setOffset(offset == null ? Query.NOLIMIT : offset);

    result.getProject().add(concept.getVar());
    Element e = concept.getElement();
    if(e instanceof ElementSubQuery) {
      e = ElementUtils.createElementGroup(e);
    }

    result.setQueryPattern(e);

//        String str = result.toString();
//        System.out.println(str);
    return result;
  }

代码示例来源：origin: vivo-project/Vitro

@Override
public Model getTriples(RDFNode subject, RDFNode predicate, RDFNode object, long limit, long offset) throws RDFServiceException {
  Query query = QueryFactory.create("CONSTRUCT WHERE { ?s ?p ?o }", Syntax.syntaxSPARQL_11);
  QuerySolutionMap map = new QuerySolutionMap();
  if ( subject != null ) {
    map.add("s", subject);
  }
  if ( predicate != null ) {
    map.add("p", predicate);
  }
  if ( object != null ) {
    map.add("o", object);
  }
  query.setOffset(offset);
  query.setLimit(limit);
  Model triples = ModelFactory.createDefaultModel();
  DatasetWrapper dw = getDatasetWrapper();
  try {
    Dataset d = dw.getDataset();
    try (QueryExecution qexec = QueryExecutionFactory.create(query, d, map)) {
      qexec.execConstruct(triples);
    }
    return triples;
  } finally {
    dw.close();
  }
}

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