risingwave_stream/from_proto/
hop_window.rs

1// Copyright 2025 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use risingwave_expr::expr::build_non_strict_from_prost;
16use risingwave_pb::stream_plan::HopWindowNode;
17
18use super::*;
19use crate::executor::HopWindowExecutor;
20
21pub struct HopWindowExecutorBuilder;
22
23impl ExecutorBuilder for HopWindowExecutorBuilder {
24    type Node = HopWindowNode;
25
26    async fn new_boxed_executor(
27        params: ExecutorParams,
28        node: &Self::Node,
29        _store: impl StateStore,
30    ) -> StreamResult<Executor> {
31        let input = params.input.into_iter().next().unwrap();
32        // TODO: reuse the schema derivation with frontend.
33        let output_indices = node
34            .get_output_indices()
35            .iter()
36            .map(|&x| x as usize)
37            .collect_vec();
38
39        let window_start_exprs: Vec<_> = node
40            .get_window_start_exprs()
41            .iter()
42            .map(|e| build_non_strict_from_prost(e, params.eval_error_report.clone()))
43            .try_collect()?;
44        let window_end_exprs: Vec<_> = node
45            .get_window_end_exprs()
46            .iter()
47            .map(|e| build_non_strict_from_prost(e, params.eval_error_report.clone()))
48            .try_collect()?;
49
50        let time_col = node.get_time_col() as usize;
51        let window_slide = node.get_window_slide()?.into();
52        let window_size = node.get_window_size()?.into();
53
54        let chunk_size = params.env.config().developer.chunk_size;
55
56        let exec = HopWindowExecutor::new(
57            params.actor_context,
58            input,
59            time_col,
60            window_slide,
61            window_size,
62            window_start_exprs,
63            window_end_exprs,
64            output_indices,
65            chunk_size,
66        );
67        Ok((params.info, exec).into())
68    }
69}
risingwave_stream/from_proto/hop_window.rs

risingwave_stream/from_proto/
hop_window.rs
