linkrs-storage 0.1.0

Storage engine with CSR and memory-mapped containers
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170

use std::sync::Arc;

use crate::edge::EdgeStrategy;
use crate::engine::params::CreateEdgeTypeParams;
use crate::types::StoragePropertyDef;
use linkrs_core::event_dispatch::SubscriptionId;
use linkrs_core::types::LabelId;
use linkrs_core::StorageResult;

use super::GraphStorageContext;

impl GraphStorageContext {
    pub fn create_vertex_type(
        &self,
        name: &str,
        properties: Vec<StoragePropertyDef>,
        primary_key: &str,
    ) -> StorageResult<LabelId> {
        super::super::schema_engine::create_vertex_type(self, name, properties, primary_key)
    }

    pub fn create_vertex_type_with_id(
        &self,
        storage_name: &str,
        user_name: &str,
        label_id: LabelId,
        properties: Vec<StoragePropertyDef>,
        primary_key: &str,
    ) -> StorageResult<LabelId> {
        super::super::schema_engine::create_vertex_type_with_id(
            self,
            storage_name,
            user_name,
            label_id,
            properties,
            primary_key,
        )
    }

    pub fn create_vertex_type_with_id_with_estimate(
        &self,
        storage_name: &str,
        user_name: &str,
        label_id: LabelId,
        properties: Vec<StoragePropertyDef>,
        primary_key: &str,
        estimated_rows: Option<u64>,
    ) -> StorageResult<LabelId> {
        super::super::schema_engine::create_vertex_type_with_id_with_estimate(
            self,
            storage_name,
            user_name,
            label_id,
            properties,
            primary_key,
            estimated_rows,
        )
    }

    pub fn create_edge_type(
        &self,
        name: &str,
        src_label: LabelId,
        dst_label: LabelId,
        properties: Vec<StoragePropertyDef>,
        oe_strategy: EdgeStrategy,
        ie_strategy: EdgeStrategy,
    ) -> StorageResult<LabelId> {
        super::super::schema_engine::create_edge_type(
            self,
            name,
            src_label,
            dst_label,
            properties,
            oe_strategy,
            ie_strategy,
        )
    }

    pub fn create_edge_type_with_id(
        &self,
        params: CreateEdgeTypeParams,
        label_id: LabelId,
    ) -> StorageResult<LabelId> {
        super::super::schema_engine::create_edge_type_with_id(self, params, label_id)
    }

    pub fn drop_vertex_type(&self, name: &str) -> StorageResult<()> {
        super::super::schema_engine::drop_vertex_type(self, name)
    }

    pub fn drop_edge_type(&self, name: &str) -> StorageResult<()> {
        super::super::schema_engine::drop_edge_type(self, name)
    }

    pub fn add_vertex_property(
        &self,
        label: LabelId,
        prop: StoragePropertyDef,
    ) -> StorageResult<()> {
        super::super::schema_engine::add_vertex_property(self, label, prop)
    }

    pub fn delete_vertex_property(&self, label: LabelId, prop_name: &str) -> StorageResult<()> {
        super::super::schema_engine::delete_vertex_property(self, label, prop_name)
    }

    pub fn rename_vertex_property(
        &self,
        label: LabelId,
        old_name: &str,
        new_name: &str,
    ) -> StorageResult<()> {
        super::super::schema_engine::rename_vertex_property(self, label, old_name, new_name)
    }

    pub fn add_edge_property(
        &self,
        edge_label: LabelId,
        prop: StoragePropertyDef,
    ) -> StorageResult<()> {
        super::super::schema_engine::add_edge_property(self, edge_label, prop)
    }

    pub fn delete_edge_property(&self, edge_label: LabelId, prop_name: &str) -> StorageResult<()> {
        super::super::schema_engine::delete_edge_property(self, edge_label, prop_name)
    }

    pub fn rename_edge_property(
        &self,
        edge_label: LabelId,
        old_name: &str,
        new_name: &str,
    ) -> StorageResult<()> {
        super::super::schema_engine::rename_edge_property(self, edge_label, old_name, new_name)
    }

    /// Register a schema-change observer.
    ///
    /// `SchemaManager` and `IndexManager` share one registry, so a single
    /// registration receives both table/space DDL and index DDL. External
    /// subsystems (fulltext rebuild, vector sync, cache
    /// invalidation, monitoring) should subscribe here.
    pub fn register_schema_callback(
        &self,
        callback: linkrs_core::metadata::SchemaChangeCallback,
    ) -> SubscriptionId {
        self.schema_manager().register_schema_callback(callback)
    }

    /// Shared schema-event registry (single subscription receives both
    /// table/space DDL and index DDL). Used by the central `HookBus`.
    pub fn shared_schema_callbacks(
        &self,
    ) -> Arc<
        linkrs_core::event_dispatch::EventSubscriptions<linkrs_core::metadata::SchemaChangeEvent>,
    > {
        self.schema_manager().shared_schema_callbacks()
    }

    /// Remove a previously registered schema-change observer.
    pub fn unregister_schema_callback(&self, id: SubscriptionId) -> bool {
        self.schema_manager().unregister_schema_callback(id)
    }

    /// Number of registered schema-change observers.
    pub fn schema_callback_count(&self) -> usize {
        self.schema_manager().schema_callback_count()
    }
}