Examples of org.openrdf.repository.RepositoryConnection.prepareQuery()

org.openrdf.repository.RepositoryConnection.prepareQuery()

Prepares a query for evaluation on this repository (optional operation). In case the query contains relative URIs that need to be resolved against an external base URI, one should use {@link #prepareQuery(QueryLanguage,String,String)} instead. @param ql The query language in which the query is formulated. @param query The query string. @return A query ready to be evaluated on this repository. @throws MalformedQueryException If the supplied query is malformed. @throws UnsupportedQueryLanguageException If the supplied query language is not supported. @throws UnsupportedOperationException If the prepareQuery method is not supported by this repository.


        try {
            RepositoryConnection connection = sesameService.getConnection();
            try {
                connection.begin();
                Query sparqlQuery = connection.prepareQuery(language, query);


                if (sparqlQuery instanceof TupleQuery) {
                  query((TupleQuery)sparqlQuery, output, format);
                } else if (sparqlQuery instanceof BooleanQuery) {
                  query((BooleanQuery)sparqlQuery, output, format);

    public Query parseQuery(QueryLanguage language, String query) throws RepositoryException, MalformedQueryException {
      Query sparqlQuery = null;
        RepositoryConnection connection = sesameService.getConnection();
        try {
            connection.begin();
            sparqlQuery = connection.prepareQuery(language, query);
            connection.commit();
        } finally {
            connection.close();
        }
        return sparqlQuery;

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