risingwave_storage/
storage_value.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 bytes::Bytes;
16
17#[derive(Debug, Clone, PartialEq, Eq)]
18pub struct StorageValue {
19    pub user_value: Option<Bytes>,
20}
21
22impl StorageValue {
23    pub fn new(user_value: Option<Bytes>) -> Self {
24        Self { user_value }
25    }
26
27    pub fn new_put(user_value: impl Into<Bytes>) -> Self {
28        Self {
29            user_value: Some(user_value.into()),
30        }
31    }
32
33    pub fn new_delete() -> Self {
34        Self { user_value: None }
35    }
36
37    /// Returns the length of the sum of value meta and user value in storage
38    pub fn size(&self) -> usize {
39        self.user_value
40            .as_ref()
41            .map(|v| v.len())
42            .unwrap_or_default()
43    }
44
45    pub fn is_some(&self) -> bool {
46        self.user_value.is_some()
47    }
48
49    pub fn is_none(&self) -> bool {
50        self.user_value.is_none()
51    }
52}
risingwave_storage/storage_value.rs

risingwave_storage/
storage_value.rs
