Class ExecutionProfile

cassandra/cluster.py:338–440

class ExecutionProfile(object):
    load_balancing_policy = None
    """
    An instance of :class:`.policies.LoadBalancingPolicy` or one of its subclasses.

    Used in determining host distance for establishing connections, and routing requests.

    Defaults to ``TokenAwarePolicy(DCAwareRoundRobinPolicy())`` if not specified
    """

    retry_policy = None
    """
    An instance of :class:`.policies.RetryPolicy` instance used when :class:`.Statement` objects do not have a
    :attr:`~.Statement.retry_policy` explicitly set.

    Defaults to :class:`.RetryPolicy` if not specified
    """

    consistency_level = ConsistencyLevel.LOCAL_ONE
    """
    :class:`.ConsistencyLevel` used when not specified on a :class:`.Statement`.
    """

    serial_consistency_level = None
    """
    Serial :class:`.ConsistencyLevel` used when not specified on a :class:`.Statement` (for LWT conditional statements).
    """

    request_timeout = 10.0
    """
    Request timeout used when not overridden in :meth:`.Session.execute`
    """

    row_factory = staticmethod(named_tuple_factory)
    """
    A callable to format results, accepting ``(colnames, rows)`` where ``colnames`` is a list of column names, and
    ``rows`` is a list of tuples, with each tuple representing a row of parsed values.

    Some example implementations:

    - :func:`cassandra.query.tuple_factory` - return a result row as a tuple
    - :func:`cassandra.query.named_tuple_factory` - return a result row as a named tuple
    - :func:`cassandra.query.dict_factory` - return a result row as a dict
    - :func:`cassandra.query.ordered_dict_factory` - return a result row as an OrderedDict
    """

    speculative_execution_policy = None
    """
    An instance of :class:`.policies.SpeculativeExecutionPolicy`

    Defaults to :class:`.NoSpeculativeExecutionPolicy` if not specified
    """

    continuous_paging_options = None
    """
    *Note:* This feature is implemented to facilitate server integration testing. It is not intended for general use in the Python driver.
    See :attr:`.Statement.fetch_size` or :attr:`Session.default_fetch_size` for configuring normal paging.