Examples of com.datastax.driver.core.Row

com.datastax.driver.core.Row
A CQL Row returned in a {@link ResultSet}.
The values of a CQL Row can be retrieve by either index (index starts at 0) or name. When setting them by name, names follow the case insensitivity rules explained in {@link ColumnDefinitions}.

        protected Pair<Long, Row> computeNext()
        {
            if (rows == null || !rows.hasNext())
                return endOfData();


            Row row = rows.next();
            Map<String, ByteBuffer> keyColumns = new HashMap<String, ByteBuffer>(partitionBoundColumns.size()); 
            for (String column : partitionBoundColumns.keySet())
                keyColumns.put(column, row.getBytesUnsafe(column));


            // increase total CF row read
            if (previousRowKey.isEmpty() && !keyColumns.isEmpty())
            {
                previousRowKey = keyColumns;

View Full Code Here

    // Sanity check that counter value is 1!
    String queryText = String.format("SELECT * FROM %s;", mCounterTable);
    ResultSet resultSet = mAdmin.execute(queryText);
    List<Row> rows = resultSet.all();
    assert(rows.size() == 1);
    Row row = rows.get(0);
    return row.getLong(SCHEMA_COUNTER_COLUMN_VALUE);
  }

View Full Code Here

    // Sanity check that counter value is 1!
    final String selectQuery = String.format("SELECT * FROM %s;", tableName);
    final ResultSet resultSet = admin.execute(selectQuery);
    final List<Row> rows = resultSet.all();
    assert(rows.size() == 1);
    final Row row = rows.get(0);
    final long counterValue = row.getLong(SCHEMA_COUNTER_COLUMN_VALUE);
    assert(0 == counterValue);
  }

View Full Code Here

    // TODO: Some additional sanity checks here?
    List<Row> rows = resultSet.all();
    Preconditions.checkArgument(
        rows.size() <= 1, "Expected to get 0 or 1 rows from system table, but got %s.", rows);
    if (rows.size() == 1) {
      Row row = rows.get(0);
      return ByteUtils.toBytes(row.getBytes(VALUE_COLUMN));
    }
    return null;
  }

View Full Code Here

    }


    /** {@inheritDoc} */
    @Override
    public SimpleEntry<String, byte[]> next() {
      Row next = mRowIterator.next();
      String key = next.getString(KEY_COLUMN);
      byte[] value = ByteUtils.toBytes(next.getBytes(VALUE_COLUMN));
      return new SimpleEntry<String, byte[]>(key, value);
    }

View Full Code Here

        protected Pair<Long, Row> computeNext()
        {
            if (rows == null || !rows.hasNext())
                return endOfData();


            Row row = rows.next();
            Map<String, ByteBuffer> keyColumns = new HashMap<String, ByteBuffer>(); 
            for (String column : partitionBoundColumns.keySet())
                keyColumns.put(column, row.getBytesUnsafe(column));


            // increase total CF row read
            if (previousRowKey.isEmpty() && !keyColumns.isEmpty())
            {
                previousRowKey = keyColumns;

View Full Code Here

            if (!reader.nextKeyValue())
                return null;


            CfInfo cfInfo = getCfInfo(loadSignature);
            CfDef cfDef = cfInfo.cfDef;
            Row row = reader.getCurrentValue();
            Tuple tuple = TupleFactory.getInstance().newTuple(cfDef.column_metadata.size());
            Iterator<ColumnDef> itera = cfDef.column_metadata.iterator();
            int i = 0;
            while (itera.hasNext())
            {
                ColumnDef cdef = itera.next();
                ByteBuffer columnValue = row.getBytesUnsafe(ByteBufferUtil.string(cdef.name.duplicate()));
                if (columnValue != null)
                {
                    Column column = new Column(cdef.name, columnValue);
                    AbstractType<?> validator = getValidatorMap(cfDef).get(column.name());
                    setTupleValue(tuple, i, cqlColumnToObj(column, cfDef), validator);

View Full Code Here

                    List<Row> rows = result.all();


                    ByteBuffer[][] r = new ByteBuffer[rows.size()][];
                    for (int i = 0 ; i < r.length ; i++)
                    {
                        Row row = rows.get(i);
                        r[i] = new ByteBuffer[row.getColumnDefinitions().size()];
                        for (int j = 0 ; j < row.getColumnDefinitions().size() ; j++)
                            r[i][j] = row.getBytes(j);
                    }
                    return r;
                }
            };
        }

View Full Code Here

        protected Pair<Long, Row> computeNext()
        {
            if (rows == null || !rows.hasNext())
                return endOfData();


            Row row = rows.next();
            Map<String, ByteBuffer> keyColumns = new HashMap<String, ByteBuffer>(); 
            for (String column : partitionBoundColumns.keySet())
                keyColumns.put(column, row.getBytesUnsafe(column));


            // increase total CF row read
            if (previousRowKey.isEmpty() && !keyColumns.isEmpty())
            {
                previousRowKey = keyColumns;

View Full Code Here

        this.mode = mode;
        this.binder = binder;
    }


    @Override protected T wrapResultSet(ResultSet resultSet) {
        Row row = resultSet.one();
        if (LOGGER.isTraceEnabled()) {
            LOGGER.trace("got {} row for {} modify {}", row != null ? "1" : "no", mode, entity.type);
        }


        if (tracer != null) {
            tracer.onModifyWrapResultSet(persistenceSession, entity, mode, resultSet);
        }


        if (row != null) {
            int idx = row.getColumnDefinitions().getIndexOf("[applied]");
            if (idx != -1 && !row.getBool(idx)) {
                throw new CasNotAppliedException(entity, instance, mode, row);
            }
        }
        persistenceSession.modified(binder, mode, entity, instance);

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of com.datastax.driver.core.Row

ch.uzh.ifi.ddis.ifp.esper.cassandra.CassandraVirtualDataWindowLookup

ch.uzh.ifi.ddis.ifp.esper.cassandra.EsperResultSetIterator

com.datastax.driver.mapping.Result

com.englishtown.vertx.cassandra.binarystore.impl.DefaultBinaryStoreManager

com.impetus.kundera.client.cassandra.dsdriver.DSClient

com.matriks.jmeter.connections.datastaxclient.DataStaxClientOperation

com.netflix.astyanax.cql.CqlKeyspaceImpl

com.netflix.astyanax.cql.CqlSchemaVersionReader

com.netflix.astyanax.cql.reads.CqlColumnQueryImpl$InternalColumnQueryExecutionImpl

com.netflix.astyanax.cql.schema.CqlKeyspaceDefinitionImpl

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.