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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# pytype: skip-file
from apache_beam.typehints import typehints
[docs]class RowTypeConstraint(typehints.TypeConstraint):
def __init__(self, fields):
self._fields = tuple(fields)
def _consistent_with_check_(self, sub):
return self == sub
[docs] def type_check(self, instance):
from apache_beam import Row
return isinstance(instance, Row)
def _inner_types(self):
"""Iterates over the inner types of the composite type."""
return [field[1] for field in self._fields]
def __eq__(self, other):
return type(self) == type(other) and self._fields == other._fields
def __hash__(self):
return hash(self._fields)
def __repr__(self):
return 'Row(%s)' % ', '.join(
'%s=%s' % (name, typehints._unified_repr(t)) for name,
t in self._fields)
[docs] def get_type_for(self, name):
return dict(self._fields)[name]