datafusion_python/expr/
extension.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use datafusion::logical_expr::Extension;
19use pyo3::{prelude::*, IntoPyObjectExt};
20
21use crate::sql::logical::PyLogicalPlan;
22
23use super::logical_node::LogicalNode;
24
25#[pyclass(name = "Extension", module = "datafusion.expr", subclass)]
26#[derive(Clone)]
27pub struct PyExtension {
28    pub node: Extension,
29}
30
31impl From<Extension> for PyExtension {
32    fn from(node: Extension) -> PyExtension {
33        PyExtension { node }
34    }
35}
36
37#[pymethods]
38impl PyExtension {
39    fn name(&self) -> PyResult<String> {
40        Ok(self.node.node.name().to_string())
41    }
42}
43
44impl LogicalNode for PyExtension {
45    fn inputs(&self) -> Vec<PyLogicalPlan> {
46        vec![]
47    }
48
49    fn to_variant<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyAny>> {
50        self.clone().into_bound_py_any(py)
51    }
52}
datafusion_python/expr/extension.rs

datafusion_python/expr/
extension.rs
