Examples of com.datastax.driver.core.Session$State

com.datastax.driver.core.Session
The state of a Session.
This mostly exposes information on the connections maintained by a Session: which host it is connected to, how many connection is has for each host, etc...

        return comp;
    }


    @Test
    public void userTypeMeta() throws InterruptedException {
        Session session = cluster.connect();
        try {
            session.execute("CREATE TYPE udttest.phone ( cntry varchar, city varchar, num varchar )");
            session.execute("CREATE TYPE udttest.address ( street varchar, city varchar, country varchar, ph_num phone )");


            Thread.sleep(500L);


            KeyspaceMetadata ksm = cluster.getMetadata().getKeyspace("udttest");
            Collection<UserType> uts = ksm.getUserTypes();


            Assert.assertTrue(uts.size() >= 2);


            UserType utPhone = ksm.getUserType("phone");
            UserType utAddress = ksm.getUserType("address");


            Assert.assertNotNull(utPhone);
            Assert.assertNotNull(utAddress);
        } finally {session.close();}
    }

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            for (int i = 0; ; i++) {
                System.out.println("Building Cluster instance...");
                cluster = builder.build();


                try {
                    Session ignored = cluster.connect();
                    ignored.close();
                    break;
                } catch (Exception e) {
                    try {
                        cluster.close();
                    } catch (Throwable ignore) {

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    }


    @SuppressWarnings({"BusyWait", "CallToPrintStackTrace"}) protected static void recreateKeyspace(String keyspaceName) {
        System.out.println("Creating keyspace " + keyspaceName + " ...");
        for (int i = 0; ; i++) {
            Session session = null;
            try {
                session = cluster.connect();


                if (keyspaceExists(session, keyspaceName)) {
                    System.out.println("Dropping keyspace " + keyspaceName);
                    session.execute("DROP KEYSPACE " + keyspaceName).one();
                    for (int j = 0; j < 100; j++) {
                        if (!keyspaceExists(session, keyspaceName)) {
                            break;
                        }
                        try {
                            Thread.sleep(100);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                    if (keyspaceExists(session, keyspaceName)) {
                        Assert.fail("could not drop keyspace " + keyspaceName);
                    }
                }


                System.out.println("Creating keyspace " + keyspaceName);
                session
                    .execute("CREATE KEYSPACE " + keyspaceName + " WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 2 }")
                    .one();
                for (int j = 0; j < 100; j++) {
                    if (keyspaceExists(session, keyspaceName)) {
                        break;
                    }
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                if (!keyspaceExists(session, keyspaceName)) {
                    Assert.fail("could not drop keyspace " + keyspaceName);
                }
                return;
            } catch (NoHostAvailableException noHost) {
                try {
                    Thread.sleep(250L);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                if (i == 5) {
                    throw noHost;
                }
            } finally { if (session!=null) session.close(); }
        }
    }

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        }
        MapEntity<?, ?> instance = (MapEntity) raw;


        persistOptions = withTTL(persistOptions);


        Session session = persistenceSession.driverSession();


        BatchStatement batch = new BatchStatement();


        //TODO adding a DELETE...WHERE partitionKey=? in front of INSERTs for the same partition key results in no insert at all *SICK*
        //Binder binder = new Binder(null, true, partitionKeyColumns, PersistMode.DELETE);

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        }
        MapEntity<?, ?> instance = (MapEntity) raw;


        persistOptions = withTTL(persistOptions);


        Session session = persistenceSession.driverSession();


        BatchStatement batch = new BatchStatement();


        Set removed = instance.getRemoved();
        if (!removed.isEmpty()) {

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        // WHERE row_specification
        // ( IF ( EXISTS | (column_name = literal ) ) AND ( column_name = literal ) . . . )


        persistOptions = withTTL(persistOptions);


        Session session = persistenceSession.driverSession();


        Binder binder = new Binder(null, true, partitionKeyColumns, PersistMode.DELETE, true);
        buildModifyBindColumns(instance, binder, partitionAttributes);
        BoundStatement bStmt = buildModifyInitial(session, persistOptions, PreparedStatements.StatementType.DELETE, binder);

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        Binder binder = new Binder(loadColumns, false, primaryKeyColumns, null, true);


        buildModifyBindColumns(container, binder);


        Session session = persistenceSession.driverSession();


        PreparedStatement pstmt = preparedStatements
            .statementFor(session, PreparedStatements.StatementType.SELECT, binder, persistOptions);
        BoundStatement bStmt = pstmt.bind();
        statementOptions.applyRead(bStmt, readConsistencyLevel, persistOptions);
        PersistOption.forBoundStatement(persistOptions, bStmt);


        int idx = binder.bindColumns(0, bStmt);


        PersistOption.LimitOption.apply(bStmt, persistOptions, idx);


        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Lazy load of {} attributes for {}", attrs.length, type);
        }


        ResultSet resultSet = session.execute(bStmt);
        Row row = resultSet.one();
        if (row != null) {
            Retriever retriever = new GettableRetriever(persistenceSession.persistenceManager.protocolVersion, row, loadColumns);
            for (MappedAttribute attr : attrs) {
                Object instance = resolveParentInstance(container, attr);

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        Binder binder = new Binder(loadColumns, false, primaryKeyColumns, null, true);


        buildModifyBindColumns(container, binder);


        Session session = persistenceSession.driverSession();


        PreparedStatement pstmt = preparedStatements
            .statementFor(session, PreparedStatements.StatementType.SELECT, binder, persistOptions);
        BoundStatement bStmt = pstmt.bind();
        statementOptions.applyRead(bStmt, readConsistencyLevel, persistOptions);
        PersistOption.forBoundStatement(persistOptions, bStmt);


        int idx = binder.bindColumns(0, bStmt);


        PersistOption.LimitOption.apply(bStmt, persistOptions, idx);


        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Lazy load of {} attributes for {}", attrs.length, type);
        }


        ResultSet resultSet = session.execute(bStmt);
        Row row = resultSet.one();
        if (row != null) {
            Retriever retriever = new GettableRetriever(persistenceSession.persistenceManager.protocolVersion, row, loadColumns);
            for (MappedAttribute attr : attrs) {
                Object instance = resolveParentInstance(container, attr);

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    }


    @Override public BatchFuture submitBatchAsync() {
        submitted = true;
        persistenceSession.statementOptions.applyWrite(batchStatement, null, null);
        Session session = persistenceSession.driverSession();
        if (LOGGER.isTraceEnabled()) {
            LOGGER.trace("Submitting batch bound statement {}", batchStatement);
        }


        for (BatchPartFutureImpl future : futures) {
            Interceptors preModify = future.mode == PersistMode.DELETE ? future.entity.preDelete : future.entity.prePersist;
            if (preModify != null) {
                preModify.invoke(future.instance, future.entity, future.mode);
            }
        }


        BatchFutureImpl future = new BatchFutureImpl(session.executeAsync(batchStatement));
        return future;
    }

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    CachedPreparedStatementCreator cpsc = new CachedPreparedStatementCreator(cql);


    PreparedStatement preparedStatement = cpsc.createPreparedStatement(getSession());
    addPreparedStatementOptions(preparedStatement, options);


    Session s = getSession();
    while (rowIterator.hasNext()) {
      s.executeAsync(preparedStatement.bind(rowIterator.next()));
    }
  }

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