store_api/
data_source.rs

1// Copyright 2023 Greptime Team
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 std::sync::Arc;
16
17use common_error::ext::BoxedError;
18use common_recordbatch::SendableRecordBatchStream;
19
20use crate::storage::ScanRequest;
21
22/// This trait represents a common data source abstraction which provides an interface
23/// for retrieving data in the form of a stream of record batches.
24pub trait DataSource {
25    /// Retrieves a stream of record batches based on the provided scan request.
26    fn get_stream(&self, request: ScanRequest) -> Result<SendableRecordBatchStream, BoxedError>;
27}
28
29pub type DataSourceRef = Arc<dyn DataSource + Send + Sync>;
store_api/data_source.rs

store_api/
data_source.rs
