/*
* (c) Copyright 2007, 2008, 2009 Hewlett-Packard Development Company, LP
* All rights reserved.
* [See end of file]
*/
package sdb.examples;
import com.hp.hpl.jena.query.*;
import com.hp.hpl.jena.sdb.SDBFactory;
import com.hp.hpl.jena.sdb.Store;
import com.hp.hpl.jena.sdb.store.DatasetStore;
/** Example of the usual way to connect store and issue a query.
* A description of the connection and store is read from file "sdb.ttl".
* Use and password come from environment variables SDB_USER and SDB_PASSWORD.
*/
public class Ex1
{
static public void main(String...argv)
{
String queryString = "SELECT * { ?s ?p ?o }" ;
Query query = QueryFactory.create(queryString) ;
Store store = SDBFactory.connectStore("sdb.ttl") ;
// Must be a DatasetStore to trigger the SDB query engine.
// Creating a graph from the Store, and adding it to a general
// purpose dataset will not necesarily exploit full SQL generation.
// The right answers will be obtained but slowly.
Dataset ds = DatasetStore.create(store) ;
QueryExecution qe = QueryExecutionFactory.create(query, ds) ;
try {
ResultSet rs = qe.execSelect() ;
ResultSetFormatter.out(rs) ;
} finally { qe.close() ; }
// Close the SDB conenction which also closes the underlying JDBC connection.
store.getConnection().close() ;
store.close() ;
}
}
/*
* (c) Copyright 2007, 2008, 2009 Hewlett-Packard Development Company, LP
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/