Examples of org.apache.stanbol.entityhub.query.sparql.SparqlFieldQuery

Package org.apache.stanbol.entityhub.query.sparql

Examples of org.apache.stanbol.entityhub.query.sparql.SparqlFieldQuery

org.apache.stanbol.entityhub.query.sparql.SparqlFieldQuery
Adds the "selected field" to "SPARQL variable name" mapping @author Rupert Westenthaler

      query.setConstraint(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD, 
          new TextConstraint(textWithDoubleQuote, patternType, true, "en",null));
      query.setLimit(10);
      query.setOffset(0);
      
      final SparqlFieldQuery sparqlQuery = SparqlFieldQueryFactory.getSparqlFieldQuery(query);
      
      return SparqlQueryUtils.createSparqlSelectQuery(sparqlQuery, false,limit,SparqlEndpointTypeEnum.Standard);
  }

View Full Code Here

    @Override
    public QueryResultList<String> findReferences(FieldQuery parsedQuery) throws YardException, IllegalArgumentException {
        if(parsedQuery == null){
            throw new IllegalArgumentException("The parsed query MUST NOT be NULL!");
        }
        final SparqlFieldQuery query = SparqlFieldQueryFactory.getSparqlFieldQuery(parsedQuery);
        RepositoryConnection con = null;
        TupleQueryResult results = null;
        try {
            con = repository.getConnection();
            con.begin();
            //execute the query
            int limit = QueryUtils.getLimit(query, getConfig().getDefaultQueryResultNumber(),
                getConfig().getMaxQueryResultNumber());
            results = executeSparqlFieldQuery(con, query, limit, false);
            //parse the results
            List<String> ids = limit > 0 ? new ArrayList<String>(limit) : new ArrayList<String>();
            while(results.hasNext()){
                BindingSet result = results.next();
                Value value = result.getValue(query.getRootVariableName());
                if(value instanceof Resource){
                    ids.add(value.stringValue());
                }
            }
            con.commit();

View Full Code Here

    @Override
    public QueryResultList<Representation> findRepresentation(FieldQuery parsedQuery) throws YardException, IllegalArgumentException {
        if(parsedQuery == null){
            throw new IllegalArgumentException("The parsed query MUST NOT be NULL!");
        }
        final SparqlFieldQuery query = SparqlFieldQueryFactory.getSparqlFieldQuery(parsedQuery);
        RepositoryConnection con = null;
        TupleQueryResult results = null;
        try {
            con = repository.getConnection();
            con.begin();
            //execute the query
            int limit = QueryUtils.getLimit(query, getConfig().getDefaultQueryResultNumber(),
                getConfig().getMaxQueryResultNumber());
            results = executeSparqlFieldQuery(con,query, limit, false);
            //parse the results and generate the Representations
            //create an own valueFactors so that all the data of the query results
            //are added to the same Sesame Model
            Model model = new TreeModel();
            RdfValueFactory valueFactory = new RdfValueFactory(model, sesameFactory);
            List<Representation> representations = limit > 0 ? 
                    new ArrayList<Representation>(limit) : new ArrayList<Representation>();
            while(results.hasNext()){
                BindingSet result = results.next();
                Value value = result.getValue(query.getRootVariableName());
                if(value instanceof URI){
                    //copy all data to the model and create the representation
                    RdfRepresentation rep = createRepresentationGraph(con, valueFactory, (URI)value); 
                    model.add(queryRoot, queryResult, value); //link the result with the query result
                    representations.add(rep);

View Full Code Here

    @Override
    public final QueryResultList<Representation> find(FieldQuery parsedQuery) throws YardException, IllegalArgumentException {
        if(parsedQuery == null){
            throw new IllegalArgumentException("The parsed query MUST NOT be NULL!");
        }
        final SparqlFieldQuery query = SparqlFieldQueryFactory.getSparqlFieldQuery(parsedQuery);
        RepositoryConnection con = null;
        TupleQueryResult results = null;
        try {
            con = repository.getConnection();
            con.begin();
            //execute the query
            int limit = QueryUtils.getLimit(query, getConfig().getDefaultQueryResultNumber(),
                getConfig().getMaxQueryResultNumber());
            results = executeSparqlFieldQuery(con,query, limit, true);
            //parse the results and generate the Representations
            //create an own valueFactors so that all the data of the query results
            //are added to the same Sesame Model
            Model model = new TreeModel();
            RdfValueFactory valueFactory = new RdfValueFactory(model, sesameFactory);
            List<Representation> representations = limit > 0 ? new ArrayList<Representation>(limit)
                    : new ArrayList<Representation>();
            Map<String,URI> bindings = new HashMap<String,URI>(query.getFieldVariableMappings().size());
            for(Entry<String,String> mapping : query.getFieldVariableMappings().entrySet()){
                bindings.put(mapping.getValue(), sesameFactory.createURI(mapping.getKey()));
            }
            while(results.hasNext()){
                BindingSet result = results.next();
                Value value = result.getValue(query.getRootVariableName());
                if(value instanceof URI){
                    URI subject = (URI) value;
                    //link the result with the query result
                    model.add(queryRoot, queryResult, subject);
                    //now copy over the other selected data

View Full Code Here

TOP

Related Classes of org.apache.stanbol.entityhub.query.sparql.SparqlFieldQuery

org.apache.stanbol.entityhub.query.sparql.SparqlQueryUtilsTest

org.apache.stanbol.entityhub.yard.sesame.SesameYard

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.