spark-instrumented-optimizer/python/pyspark/sql/udf.pyi
zero323 31a16fbb40 [SPARK-32714][PYTHON] Initial pyspark-stubs port
### What changes were proposed in this pull request?

This PR proposes migration of [`pyspark-stubs`](https://github.com/zero323/pyspark-stubs) into Spark codebase.

### Why are the changes needed?

### Does this PR introduce _any_ user-facing change?

Yes. This PR adds type annotations directly to Spark source.

This can impact interaction with development tools for users, which haven't used `pyspark-stubs`.

### How was this patch tested?

- [x] MyPy tests of the PySpark source
    ```
    mypy --no-incremental --config python/mypy.ini python/pyspark
    ```
- [x] MyPy tests of Spark examples
    ```
   MYPYPATH=python/ mypy --no-incremental --config python/mypy.ini examples/src/main/python/ml examples/src/main/python/sql examples/src/main/python/sql/streaming
    ```
- [x] Existing Flake8 linter

- [x] Existing unit tests

Tested against:

- `mypy==0.790+dev.e959952d9001e9713d329a2f9b196705b028f894`
- `mypy==0.782`

Closes #29591 from zero323/SPARK-32681.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-09-24 14:15:36 +09:00

58 lines
1.9 KiB
Python

#
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with 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. See the License for the
# specific language governing permissions and limitations
# under the License.
from typing import Any, Callable, Optional
from pyspark.sql._typing import ColumnOrName, DataTypeOrString
from pyspark.sql.column import Column
import pyspark.sql.session
class UserDefinedFunction:
func: Callable[..., Any]
evalType: int
deterministic: bool
def __init__(
self,
func: Callable[..., Any],
returnType: DataTypeOrString = ...,
name: Optional[str] = ...,
evalType: int = ...,
deterministic: bool = ...,
) -> None: ...
@property
def returnType(self): ...
def __call__(self, *cols: ColumnOrName) -> Column: ...
def asNondeterministic(self) -> UserDefinedFunction: ...
class UDFRegistration:
sparkSession: pyspark.sql.session.SparkSession
def __init__(self, sparkSession: pyspark.sql.session.SparkSession) -> None: ...
def register(
self,
name: str,
f: Callable[..., Any],
returnType: Optional[DataTypeOrString] = ...,
): ...
def registerJavaFunction(
self,
name: str,
javaClassName: str,
returnType: Optional[DataTypeOrString] = ...,
) -> None: ...
def registerJavaUDAF(self, name: str, javaClassName: str) -> None: ...