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::IntoPyObjectExt;
20use pyo3::prelude::*;
21
22use super::logical_node::LogicalNode;
23use crate::sql::logical::PyLogicalPlan;
24
25#[pyclass(
26    from_py_object,
27    frozen,
28    name = "Extension",
29    module = "datafusion.expr",
30    subclass
31)]
32#[derive(Clone)]
33pub struct PyExtension {
34    pub node: Extension,
35}
36
37impl From<Extension> for PyExtension {
38    fn from(node: Extension) -> PyExtension {
39        PyExtension { node }
40    }
41}
42
43#[pymethods]
44impl PyExtension {
45    fn name(&self) -> PyResult<String> {
46        Ok(self.node.node.name().to_string())
47    }
48}
49
50impl LogicalNode for PyExtension {
51    fn inputs(&self) -> Vec<PyLogicalPlan> {
52        vec![]
53    }
54
55    fn to_variant<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyAny>> {
56        self.clone().into_bound_py_any(py)
57    }
58}
datafusion_python/expr/extension.rs

datafusion_python/expr/
extension.rs
