reifydb_core/key/
relationship.rs1use reifydb_codec::key::{
5 deserializer::KeyDeserializer,
6 encoded::{EncodedKey, EncodedKeyRange},
7 serializer::KeySerializer,
8};
9
10use super::{EncodableKey, KeyKind};
11use crate::interface::catalog::id::RelationshipId;
12
13#[derive(Debug, Clone)]
14pub struct RelationshipKey {
15 pub relationship: RelationshipId,
16}
17
18impl EncodableKey for RelationshipKey {
19 const KIND: KeyKind = KeyKind::Relationship;
20
21 fn encode(&self) -> EncodedKey {
22 let mut serializer = KeySerializer::with_capacity(9);
23 serializer.extend_u8(Self::KIND as u8).extend_u64(self.relationship);
24 serializer.to_encoded_key()
25 }
26
27 fn decode(key: &EncodedKey) -> Option<Self> {
28 let mut de = KeyDeserializer::from_bytes(key.as_slice());
29
30 let kind: KeyKind = de.read_u8().ok()?.try_into().ok()?;
31 if kind != Self::KIND {
32 return None;
33 }
34
35 let relationship = de.read_u64().ok()?;
36
37 Some(Self {
38 relationship: RelationshipId(relationship),
39 })
40 }
41}
42
43impl RelationshipKey {
44 pub fn encoded(relationship: impl Into<RelationshipId>) -> EncodedKey {
45 Self {
46 relationship: relationship.into(),
47 }
48 .encode()
49 }
50
51 pub fn full_scan() -> EncodedKeyRange {
52 EncodedKeyRange::start_end(Some(Self::relationship_start()), Some(Self::relationship_end()))
53 }
54
55 fn relationship_start() -> EncodedKey {
56 let mut serializer = KeySerializer::with_capacity(1);
57 serializer.extend_u8(Self::KIND as u8);
58 serializer.to_encoded_key()
59 }
60
61 fn relationship_end() -> EncodedKey {
62 let mut serializer = KeySerializer::with_capacity(1);
63 serializer.extend_u8(Self::KIND as u8 - 1);
64 serializer.to_encoded_key()
65 }
66}