SqliteGraphRepository<T, U, EF>

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:37

SQLite 图实体仓库 实现基于 SQLite 递归 CTE 的图查询

Extends

• SqliteRepository<T>

Type Parameters

Type Parameter	Default type
T extends EntityBaseType	EntityBaseType
U extends EdgeFilterOptions	EdgeFilterOptionsFull
EF	GraphEdgeInfoType<U>

Implements

• IGraphRepository<T, U, EF>

Constructors

Constructor

new SqliteGraphRepository<T, U, EF>(adapter, EntityType): SqliteGraphRepository<T, U, EF>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:49

Parameters

Parameter	Type
adapter	RxDBAdapterSqliteBase
EntityType	EntityType

Returns

SqliteGraphRepository<T, U, EF>

Overrides

SqliteRepository.constructor

Properties

adapter

protected adapter: RxDBAdapterSqliteBase;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepositoryBase.d.ts:8

Inherited from

SqliteRepository.adapter

---

EntityType

readonly EntityType: T;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:9

Inherited from

SqliteRepository.EntityType

---

metadata

readonly metadata: EntityMetadata;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepositoryBase.d.ts:9

Inherited from

SqliteRepository.metadata

---

rxdb

protected readonly rxdb: RxDB;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:8

Inherited from

SqliteRepository.rxdb

---

_STATIC_METHODS

protected static _STATIC_METHODS: string[];

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:10

Inherited from

SqliteRepository._STATIC_METHODS

Accessors

staticMethods

Get Signature

get static staticMethods(): string[];

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:11

Returns

string[]

Inherited from

SqliteRepository.staticMethods

Methods

addEdge()

addEdge(
   from, 
   to, 
   weight?, 
   properties?): Promise<void>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:229

添加边

Parameters

Parameter	Type
from	InstanceType<T>
to	InstanceType<T>
weight?	number
properties?	GraphEdgeProperties<U>

Returns

Promise<void>

Remarks

无向图会同时写入 A->B 与 B->A 两条记录，两次写入在同一事务中执行； 自环边（from === to）只写入一条记录

Implementation of

IGraphRepository.addEdge

---

addQueryCache()

addQueryCache(sqliteSuccessResult, forcedUpdate?): Promise<InstanceType<T>[]>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepositoryBase.d.ts:17

添加缓存

Parameters

Parameter	Type	Description
sqliteSuccessResult	SqliteSuccessResult	-
forcedUpdate?	boolean	强制刷新，在数据有的情况下也会更新数据，在修改数据的情况下需要

Returns

Promise<InstanceType<T>[]>

Inherited from

SqliteRepository.addQueryCache

---

count()

count(options): Promise<number>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:10

查询实体数量

Parameters

Parameter	Type	Description
options	EntityStaticType<T, "countOptions">	查询选项

Returns

Promise<number>

Implementation of

IGraphRepository.count

Inherited from

SqliteRepository.count

---

countNeighbors()

countNeighbors(options): Promise<number>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:125

查询邻居节点数量

Parameters

Parameter	Type
options	FindNeighborsOptions<T, GraphWhere<T>, U>

Returns

Promise<number>

Implementation of

IGraphRepository.countNeighbors

---

create()

create(entity): Promise<InstanceType<T>>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:11

创建实体

Parameters

Parameter	Type
entity	InstanceType<T>

Returns

Promise<InstanceType<T>>

Implementation of

IGraphRepository.create

Inherited from

SqliteRepository.create

---

createEntityRef()

createEntityRef(data): any;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:17

获取实体实例

Parameters

Parameter	Type	Description
data	EntityUpdateData<T>	实体数据

Returns

any

Inherited from

SqliteRepository.createEntityRef

---

find()

find(options): Promise<InstanceType<T>[]>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:9

查询多个实体

Parameters

Parameter	Type	Description
options	EntityStaticType<T, "findOptions">	查询选项

Returns

Promise<InstanceType<T>[]>

Implementation of

IGraphRepository.find

Inherited from

SqliteRepository.find

---

findByRowIds()

findByRowIds(rowIds): Promise<InstanceType<T>[]>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepositoryBase.d.ts:11

Parameters

Parameter	Type
rowIds	bigint[]

Returns

Promise<InstanceType<T>[]>

Inherited from

SqliteRepository.findByRowIds

---

findNeighbors()

findNeighbors(options): Promise<NeighborResult<T, EF>[]>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:56

查询邻居节点

Parameters

Parameter	Type
options	FindNeighborsOptions<T, GraphWhere<T>, U>

Returns

Promise<NeighborResult<T, EF>[]>

Implementation of

IGraphRepository.findNeighbors

---

findOne()

findOne(options): Promise<InstanceType<T> | undefined>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:8

Parameters

Parameter	Type
options	EntityStaticType<T, "findOneOptions">

Returns

Promise<InstanceType<T> | undefined>

Inherited from

SqliteRepository.findOne

---

findPaths()

findPaths(options): Promise<GraphPath<T>[]>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:140

查询两个节点之间的所有路径

Parameters

Parameter	Type
options	FindPathsOptions<T, GraphWhere<T>, U>

Returns

Promise<GraphPath<T>[]>

Implementation of

IGraphRepository.findPaths

---

get()

get(id): Promise<InstanceType<T>>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:7

Parameters

Parameter	Type
id	EntityStaticType<T, "idType">

Returns

Promise<InstanceType<T>>

Inherited from

SqliteRepository.get

---

getEntityRef()

getEntityRef(id): InstanceType<T> | undefined;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:22

获取实体实例

Parameters

Parameter	Type	Description
id	EntityStaticType<T, "idType">	实体的 ID

Returns

InstanceType<T> | undefined

Inherited from

SqliteRepository.getEntityRef

---

hasEntityRef()

hasEntityRef(id): boolean;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:27

获取实体实例

Parameters

Parameter	Type	Description
id	EntityStaticType<T, "idType">	实体的 ID

Returns

boolean

Inherited from

SqliteRepository.hasEntityRef

---

remove()

remove(entity): Promise<InstanceType<T>>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:13

删除实体

Parameters

Parameter	Type
entity	InstanceType<T>

Returns

Promise<InstanceType<T>>

Implementation of

IGraphRepository.remove

Inherited from

SqliteRepository.remove

---

removeEdge()

removeEdge(from, to): Promise<void>;

Defined in: rxdb-plugin-graph/src/sqlite/SqliteGraphRepository.ts:254

移除边

Parameters

Parameter	Type
from	InstanceType<T>
to	InstanceType<T>

Returns

Promise<void>

Remarks

无向图会同时删除 A->B 与 B->A 两条记录，两次删除在同一事务中执行

Implementation of

IGraphRepository.removeEdge

---

update()

update(entity, patch): Promise<InstanceType<T>>;

Defined in: rxdb-adapter-sqlite-core/dist/repository/SqliteRepository.d.ts:12

更新实体

Parameters

Parameter	Type
entity	InstanceType<T>
patch	Partial<InstanceType<T>>

Returns

Promise<InstanceType<T>>

Implementation of

IGraphRepository.update

Inherited from

SqliteRepository.update

---

updateEntity()

updateEntity(entity, update): void;

Defined in: rxdb/dist/repository/RepositoryBase.d.ts:31

更新实体

Parameters

Parameter	Type
entity	InstanceType<T>
update	InstanceType<T>

Returns

void

Inherited from

SqliteRepository.updateEntity