def flat_map(self, operator, types):
"""
Applies a FlatMap transformation on a DataSet.
The transformation calls a FlatMapFunction for each element of the DataSet.
Each FlatMapFunction call can return any number of elements including none.
:param operator: The FlatMapFunction that is called for each element of the DataSet.
:param types: The type of the resulting DataSet.
:return:A FlatMapOperator that represents the transformed DataSe
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FlatMapFunction()
operator.flat_map = f
child = dict()
child_set = OperatorSet(self._env, child)
child[_Fields.IDENTIFIER] = _Identifier.FLATMAP
child[_Fields.PARENT] = self._info
child[_Fields.OPERATOR] = operator
child[_Fields.META] = str(inspect.getmodule(operator)) + "|" + str(operator.__class__.__name__)
child[_Fields.TYPES] = types
child[_Fields.NAME] = "PythonFlatMap"
self._info[_Fields.CHILDREN].append(child)
self._env._sets.append(child)
return child_set
def flat_map(self, operator, types):
"""
Applies a FlatMap transformation on a DataSet.
The transformation calls a FlatMapFunction for each element of the DataSet.
Each FlatMapFunction call can return any number of elements including none.
:param operator: The FlatMapFunction that is called for each element of the DataSet.
:param types: The type of the resulting DataSet.
:return:A FlatMapOperator that represents the transformed DataSe
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FlatMapFunction()
operator.flat_map = f
child = dict()
child_set = OperatorSet(self._env, child)
child[_Fields.IDENTIFIER] = _Identifier.FLATMAP
child[_Fields.PARENT] = self._info
child[_Fields.OPERATOR] = operator
child[_Fields.META] = str(inspect.getmodule(operator)) + "|" + str(
operator.__class__.__name__)
child[_Fields.TYPES] = types
child[_Fields.NAME] = "PythonFlatMap"
self._info[_Fields.CHILDREN].append(child)
self._env._sets.append(child)
return child_set
def flat_map(self, operator, types):
"""
Applies a FlatMap transformation on a DataSet.
The transformation calls a FlatMapFunction for each element of the DataSet.
Each FlatMapFunction call can return any number of elements including none.
:param operator: The FlatMapFunction that is called for each element of the DataSet.
:param types: The type of the resulting DataSet.
:return:A FlatMapOperator that represents the transformed DataSe
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FlatMapFunction()
operator.flat_map = f
child = OperationInfo()
child_set = OperatorSet(self._env, child)
child.identifier = _Identifier.FLATMAP
child.parent = self._info
child.operator = operator
child.meta = str(inspect.getmodule(operator)) + "|" + str(
operator.__class__.__name__)
child.types = types
child.name = "PythonFlatMap"
self._info.children.append(child)
self._env._sets.append(child)
return child_set
def flat_map(self, operator, types):
"""
Applies a FlatMap transformation on a DataSet.
The transformation calls a FlatMapFunction for each element of the DataSet.
Each FlatMapFunction call can return any number of elements including none.
:param operator: The FlatMapFunction that is called for each element of the DataSet.
:param types: The type of the resulting DataSet.
:return:A FlatMapOperator that represents the transformed DataSe
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FlatMapFunction()
operator.flat_map = f
child = OperationInfo()
child_set = OperatorSet(self._env, child)
child.identifier = _Identifier.FLATMAP
child.parent = self._info
child.operator = operator
child.meta = str(inspect.getmodule(operator)) + "|" + str(operator.__class__.__name__)
child.types = types
child.name = "PythonFlatMap"
self._info.children.append(child)
self._env._sets.append(child)
return child_set
