reifydb_core/key/
flow.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use super::{EncodableKey, KeyKind};
5use crate::{
6	encoded::key::{EncodedKey, EncodedKeyRange},
7	interface::catalog::flow::FlowId,
8	util::encoding::keycode::{deserializer::KeyDeserializer, serializer::KeySerializer},
9};
10
11#[derive(Debug, Clone, PartialEq)]
12pub struct FlowKey {
13	pub flow: FlowId,
14}
15
16impl EncodableKey for FlowKey {
17	const KIND: KeyKind = KeyKind::Flow;
18
19	fn encode(&self) -> EncodedKey {
20		let mut serializer = KeySerializer::with_capacity(9);
21		serializer.extend_u8(Self::KIND as u8).extend_u64(self.flow);
22		serializer.to_encoded_key()
23	}
24
25	fn decode(key: &EncodedKey) -> Option<Self> {
26		let mut de = KeyDeserializer::from_bytes(key.as_slice());
27
28		let kind: KeyKind = de.read_u8().ok()?.try_into().ok()?;
29		if kind != Self::KIND {
30			return None;
31		}
32
33		let flow = de.read_u64().ok()?;
34
35		Some(Self {
36			flow: FlowId(flow),
37		})
38	}
39}
40
41impl FlowKey {
42	pub fn encoded(flow: impl Into<FlowId>) -> EncodedKey {
43		Self {
44			flow: flow.into(),
45		}
46		.encode()
47	}
48
49	pub fn full_scan() -> EncodedKeyRange {
50		EncodedKeyRange::start_end(Some(Self::flow_start()), Some(Self::flow_end()))
51	}
52
53	fn flow_start() -> EncodedKey {
54		let mut serializer = KeySerializer::with_capacity(1);
55		serializer.extend_u8(Self::KIND as u8);
56		serializer.to_encoded_key()
57	}
58
59	fn flow_end() -> EncodedKey {
60		let mut serializer = KeySerializer::with_capacity(1);
61		serializer.extend_u8(Self::KIND as u8 - 1);
62		serializer.to_encoded_key()
63	}
64}
65
66#[cfg(test)]
67pub mod tests {
68	use super::{EncodableKey, FlowKey};
69	use crate::interface::catalog::flow::FlowId;
70
71	#[test]
72	fn test_encode_decode() {
73		let key = FlowKey {
74			flow: FlowId(0x1234),
75		};
76		let encoded = key.encode();
77		let decoded = FlowKey::decode(&encoded).unwrap();
78		assert_eq!(decoded.flow, FlowId(0x1234));
79		assert_eq!(key, decoded);
80	}
81}
reifydb_core/key/flow.rs

reifydb_core/key/
flow.rs
