reifydb_core/key/
namespace_ringbuffer.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::id::{NamespaceId, RingBufferId},
8	util::encoding::keycode::{deserializer::KeyDeserializer, serializer::KeySerializer},
9};
10
11#[derive(Debug, Clone, PartialEq)]
12pub struct NamespaceRingBufferKey {
13	pub namespace: NamespaceId,
14	pub ringbuffer: RingBufferId,
15}
16
17impl NamespaceRingBufferKey {
18	pub fn new(namespace: NamespaceId, ringbuffer: RingBufferId) -> Self {
19		Self {
20			namespace,
21			ringbuffer,
22		}
23	}
24
25	pub fn encoded(namespace: impl Into<NamespaceId>, ringbuffer: impl Into<RingBufferId>) -> EncodedKey {
26		Self::new(namespace.into(), ringbuffer.into()).encode()
27	}
28
29	pub fn full_scan(namespace: NamespaceId) -> EncodedKeyRange {
30		EncodedKeyRange::start_end(Some(Self::link_start(namespace)), Some(Self::link_end(namespace)))
31	}
32
33	fn link_start(namespace: NamespaceId) -> EncodedKey {
34		let mut serializer = KeySerializer::with_capacity(9);
35		serializer.extend_u8(Self::KIND as u8).extend_u64(namespace);
36		serializer.to_encoded_key()
37	}
38
39	fn link_end(namespace: NamespaceId) -> EncodedKey {
40		let mut serializer = KeySerializer::with_capacity(9);
41		serializer.extend_u8(Self::KIND as u8).extend_u64(*namespace - 1);
42		serializer.to_encoded_key()
43	}
44}
45
46impl EncodableKey for NamespaceRingBufferKey {
47	const KIND: KeyKind = KeyKind::NamespaceRingBuffer;
48
49	fn encode(&self) -> EncodedKey {
50		let mut serializer = KeySerializer::with_capacity(17);
51		serializer.extend_u8(Self::KIND as u8).extend_u64(self.namespace).extend_u64(self.ringbuffer);
52		serializer.to_encoded_key()
53	}
54
55	fn decode(key: &EncodedKey) -> Option<Self> {
56		let mut de = KeyDeserializer::from_bytes(key.as_slice());
57
58		let kind: KeyKind = de.read_u8().ok()?.try_into().ok()?;
59		if kind != Self::KIND {
60			return None;
61		}
62
63		let namespace = de.read_u64().ok()?;
64		let ringbuffer = de.read_u64().ok()?;
65
66		Some(Self {
67			namespace: NamespaceId(namespace),
68			ringbuffer: RingBufferId(ringbuffer),
69		})
70	}
71}
reifydb_core/key/namespace_ringbuffer.rs

reifydb_core/key/
namespace_ringbuffer.rs
