Examples with Store org.apache.jena.sdb.Store used on opensource projects

Example 6 with Store

use of org.apache.jena.sdb.Store in project jena by apache.

the class TestAssembler method create.

private Store create(Model assem) {
    // Create a store and format
    Dataset ds = DatasetFactory.assemble(assem);
    Store store = ((DatasetGraphSDB) ds.asDatasetGraph()).getStore();
    store.getTableFormatter().create();
    return store;
}

Example 7 with Store

use of org.apache.jena.sdb.Store in project jena by apache.

the class TestAssembler method model_4.

@Test
public void model_4() {
    Model assem = FileManager.get().loadModel(dir + "graph-assembler.ttl");
    Resource xDft = assem.getResource("http://example/test#graphDft");
    Resource xNamed = assem.getResource("http://example/test#graphNamed");
    Store store = create(assem);
    Model model1 = (Model) Assembler.general.open(xDft);
    Model model2 = (Model) Assembler.general.open(xNamed);
    // Check they are not connected to the same place in the store 
    Resource s = model1.createResource();
    Property p = model1.createProperty("http://example/p");
    Literal o = model1.createLiteral("foo");
    model1.add(s, p, o);
    assertTrue(model1.contains(s, p, o));
    assertTrue(model1.size() == 1);
    assertTrue(model2.size() == 0);
    assertFalse(model1.isIsomorphicWith(model2));
}

Example 8 with Store

use of org.apache.jena.sdb.Store in project jena by apache.

the class ExModelSDB method main.

public static void main(String... argv) {
    Store store = StoreFactory.create("sdb.ttl");
    Model model = SDBFactory.connectDefaultModel(store);
    StmtIterator sIter = model.listStatements();
    for (; sIter.hasNext(); ) {
        Statement stmt = sIter.nextStatement();
        System.out.println(stmt);
    }
    sIter.close();
    store.close();
}

Example 9 with Store

use of org.apache.jena.sdb.Store in project jena by apache.

the class Ex2 method main.

public static void main(String... argv) {
    String queryString = "SELECT * { ?s ?p ?o }";
    Query query = QueryFactory.create(queryString);
    StoreDesc storeDesc = new StoreDesc(LayoutType.LayoutTripleNodesHash, DatabaseType.Derby);
    // Multiple choices for Derby - load the embedded driver
    JDBC.loadDriverDerby();
    String jdbcURL = "jdbc:derby:DB/SDB2";
    // Passing null for user and password causes them to be extracted
    // from the environment variables SDB_USER and SDB_PASSWORD
    SDBConnection conn = new SDBConnection(jdbcURL, null, null);
    // Make store from connection and store description. 
    Store store = SDBFactory.connectStore(conn, storeDesc);
    Dataset ds = DatasetStore.create(store);
    QueryExecution qe = QueryExecutionFactory.create(query, ds);
    try {
        ResultSet rs = qe.execSelect();
        ResultSetFormatter.out(rs);
    } finally {
        qe.close();
    }
    store.close();
}

Example 10 with Store

use of org.apache.jena.sdb.Store in project jena by apache.

the class Ex1 method main.

public static 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();
}