def filter(self, operator):
"""
Applies a Filter transformation on a DataSet.
he transformation calls a FilterFunction for each element of the DataSet and retains only those element
for which the function returns true. Elements for which the function returns false are filtered.
:param operator: The FilterFunction that is called for each element of the DataSet.
:return:A FilterOperator that represents the filtered DataSet.
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FilterFunction()
operator.filter = f
child = dict()
child_set = OperatorSet(self._env, child)
child[_Fields.IDENTIFIER] = _Identifier.FILTER
child[_Fields.PARENT] = self._info
child[_Fields.OPERATOR] = operator
child[_Fields.META] = str(inspect.getmodule(operator)) + "|" + str(operator.__class__.__name__)
child[_Fields.NAME] = "PythonFilter"
child[_Fields.TYPES] = deduct_output_type(self._info)
self._info[_Fields.CHILDREN].append(child)
self._env._sets.append(child)
return child_set
def filter(self, operator):
"""
Applies a Filter transformation on a DataSet.
he transformation calls a FilterFunction for each element of the DataSet and retains only those element
for which the function returns true. Elements for which the function returns false are filtered.
:param operator: The FilterFunction that is called for each element of the DataSet.
:return:A FilterOperator that represents the filtered DataSet.
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FilterFunction()
operator.filter = f
child = dict()
child_set = OperatorSet(self._env, child)
child[_Fields.IDENTIFIER] = _Identifier.FILTER
child[_Fields.PARENT] = self._info
child[_Fields.OPERATOR] = operator
child[_Fields.META] = str(inspect.getmodule(operator)) + "|" + str(
operator.__class__.__name__)
child[_Fields.NAME] = "PythonFilter"
child[_Fields.TYPES] = deduct_output_type(self._info)
self._info[_Fields.CHILDREN].append(child)
self._env._sets.append(child)
return child_set
def filter(self, operator):
"""
Applies a Filter transformation on a DataSet.
he transformation calls a FilterFunction for each element of the DataSet and retains only those element
for which the function returns true. Elements for which the function returns false are filtered.
:param operator: The FilterFunction that is called for each element of the DataSet.
:return:A FilterOperator that represents the filtered DataSet.
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FilterFunction()
operator.filter = f
child = OperationInfo()
child_set = OperatorSet(self._env, child)
child.identifier = _Identifier.FILTER
child.parent = self._info
child.operator = operator
child.meta = str(inspect.getmodule(operator)) + "|" + str(
operator.__class__.__name__)
child.name = "PythonFilter"
child.types = deduct_output_type(self._info)
self._info.children.append(child)
self._env._sets.append(child)
return child_set
def filter(self, operator):
"""
Applies a Filter transformation on a DataSet.
he transformation calls a FilterFunction for each element of the DataSet and retains only those element
for which the function returns true. Elements for which the function returns false are filtered.
:param operator: The FilterFunction that is called for each element of the DataSet.
:return:A FilterOperator that represents the filtered DataSet.
"""
if isinstance(operator, TYPES.FunctionType):
f = operator
operator = FilterFunction()
operator.filter = f
child = OperationInfo()
child_set = OperatorSet(self._env, child)
child.identifier = _Identifier.FILTER
child.parent = self._info
child.operator = operator
child.meta = str(inspect.getmodule(operator)) + "|" + str(operator.__class__.__name__)
child.name = "PythonFilter"
child.types = deduct_output_type(self._info)
self._info.children.append(child)
self._env._sets.append(child)
return child_set
