def _join(self, other_set, identifier):
child = OperationInfo()
child_set = JoinOperatorWhere(self._env, child)
child.identifier = identifier
child.parent_set = self
child.other_set = other_set
return child_set
def _join(self, other_set, identifier):
child = OperationInfo()
child_set = JoinOperatorWhere(self._env, child)
child.identifier = identifier
child.parent_set = self
child.other_set = other_set
return child_set
def co_group(self, other_set):
"""
Initiates a CoGroup transformation which combines the elements of two DataSets into on DataSet.
It groups each DataSet individually on a key and gives groups of both DataSets with equal keys together into a
CoGroupFunction. If a DataSet has a group with no matching key in the other DataSet,
the CoGroupFunction is called with an empty group for the non-existing group.
The CoGroupFunction can iterate over the elements of both groups and return any number of elements
including none.
:param other_set: The other DataSet of the CoGroup transformation.
:return:A CoGroupOperator to continue the definition of the CoGroup transformation.
"""
child = OperationInfo()
other_set._info.children.append(child)
child_set = CoGroupOperatorWhere(self._env, child)
child.identifier = _Identifier.COGROUP
child.parent_set = self
child.other_set = other_set
return child_set
def co_group(self, other_set):
"""
Initiates a CoGroup transformation which combines the elements of two DataSets into on DataSet.
It groups each DataSet individually on a key and gives groups of both DataSets with equal keys together into a
CoGroupFunction. If a DataSet has a group with no matching key in the other DataSet,
the CoGroupFunction is called with an empty group for the non-existing group.
The CoGroupFunction can iterate over the elements of both groups and return any number of elements
including none.
:param other_set: The other DataSet of the CoGroup transformation.
:return:A CoGroupOperator to continue the definition of the CoGroup transformation.
"""
child = OperationInfo()
other_set._info.children.append(child)
child_set = CoGroupOperatorWhere(self._env, child)
child.identifier = _Identifier.COGROUP
child.parent_set = self
child.other_set = other_set
return child_set
