def __init__(self, function_type, *args):
"""Build the Each constructor for the Python function.
Arguments:
function_type -- CascadingFunctionWrapper or CascadingFilterWrapper,
whether we are calling Each with a function or filter
*args -- the arguments passed on to Cascading Each
"""
Operation.__init__(self)
self.__function = None
# The default argument selector is Fields.ALL (per Cascading sources
# for Operator.java)
self.__argument_selector = None
# The default output selector is Fields.RESULTS (per Cascading sources
# for Operator.java)
self.__output_selector = None
if len(args) == 1:
self.__function = args[0]
elif len(args) == 2:
(self.__argument_selector, self.__function) = args
elif len(args) == 3:
(self.__argument_selector, self.__function,
self.__output_selector) = args
else:
raise Exception('The number of parameters to Apply/Filter ' \
'should be between 1 and 3')
# This is the Cascading Function type
self.__function = wrap_function(self.__function, function_type)
def __init__(self, function_type, *args):
"""Build the Each constructor for the Python function.
Arguments:
function_type -- CascadingFunctionWrapper or CascadingFilterWrapper,
whether we are calling Each with a function or filter
*args -- the arguments passed on to Cascading Each
"""
Operation.__init__(self)
self.__function = None
# The default argument selector is Fields.ALL (per Cascading sources
# for Operator.java)
self.__argument_selector = None
# The default output selector is Fields.RESULTS (per Cascading sources
# for Operator.java)
self.__output_selector = None
if len(args) == 1:
self.__function = args[0]
elif len(args) == 2:
(self.__argument_selector, self.__function) = args
elif len(args) == 3:
(self.__argument_selector, self.__function,
self.__output_selector) = args
else:
raise Exception('The number of parameters to Apply/Filter ' \
'should be between 1 and 3')
# This is the Cascading Function type
self.__function = wrap_function(self.__function, function_type)
def __init__(self, *args, **kwargs):
"""Create a Cascading Every pipe.
Keyword arguments:
aggregator -- a Cascading aggregator (only either aggregator or buffer
should be used)
buffer -- a Cascading Buffer or a PyCascading @reduce function
output_selector -- the outputSelector parameter for Cascading
argument_selector -- the argumentSelector parameter for Cascading
assertion_level -- the assertionLevel parameter for Cascading
assertion -- the assertion parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, *args, **kwargs):
"""Create a Cascading Every pipe.
Keyword arguments:
aggregator -- a Cascading aggregator (only either aggregator or buffer
should be used)
buffer -- a Cascading Buffer or a PyCascading @reduce function
output_selector -- the outputSelector parameter for Cascading
argument_selector -- the argumentSelector parameter for Cascading
assertion_level -- the assertionLevel parameter for Cascading
assertion -- the assertion parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, *args, **kwargs):
"""Create a Cascading Every pipe.
Arguments:
args[0] -- the fields on which to group
Keyword arguments:
group_name -- the groupName parameter for Cascading
group_fields -- the fields on which to group
sort_fields -- the sortFields parameter for Cascading
reverse_order -- the reverseOrder parameter for Cascading
lhs_pipe -- the lhsPipe parameter for Cascading
rhs_pipe -- the rhsPipe parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, *args, **kwargs):
"""Create a Cascading Every pipe.
Arguments:
args[0] -- the fields on which to group
Keyword arguments:
group_name -- the groupName parameter for Cascading
group_fields -- the fields on which to group
sort_fields -- the sortFields parameter for Cascading
reverse_order -- the reverseOrder parameter for Cascading
lhs_pipe -- the lhsPipe parameter for Cascading
rhs_pipe -- the rhsPipe parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, *args, **kwargs):
"""Create a Cascading CoGroup pipe.
Arguments:
args[0] -- the fields on which to join
Keyword arguments:
group_name -- the groupName parameter for Cascading
group_fields -- the fields on which to group
declared_fields -- the declaredFields parameter for Cascading
result_group_fields -- the resultGroupFields parameter for Cascading
joiner -- the joiner parameter for Cascading
num_self_joins -- the numSelfJoins parameter for Cascading
lhs -- the lhs parameter for Cascading
lhs_group_fields -- the lhsGroupFields parameter for Cascading
rhs -- the rhs parameter for Cascading
rhs_group_fields -- the rhsGroupFields parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, *args, **kwargs):
"""Create a Cascading CoGroup pipe.
Arguments:
args[0] -- the fields on which to join
Keyword arguments:
group_name -- the groupName parameter for Cascading
group_fields -- the fields on which to group
declared_fields -- the declaredFields parameter for Cascading
result_group_fields -- the resultGroupFields parameter for Cascading
joiner -- the joiner parameter for Cascading
num_self_joins -- the numSelfJoins parameter for Cascading
lhs -- the lhs parameter for Cascading
lhs_group_fields -- the lhsGroupFields parameter for Cascading
rhs -- the rhs parameter for Cascading
rhs_group_fields -- the rhsGroupFields parameter for Cascading
"""
Operation.__init__(self)
self.__args = args
self.__kwargs = kwargs
def __init__(self, callback):
Operation.__init__(self)
self.__callback = callback
def __init__(self, callback):
Operation.__init__(self)
self.__callback = callback
