类: abstract BaseIndex<TKey>

定义于: packages/db/src/indexes/base-index.ts:28

所有索引类型都扩展的抽象基类

继承自

BTreeIndex

类型参数

• TKey 继承自 string | number = string | number

构造函数

new BaseIndex()

new BaseIndex<TKey>(
   id, 
   expression, 
   name?, 
options?): BaseIndex<TKey>

new BaseIndex<TKey>(
   id, 
   expression, 
   name?, 
options?): BaseIndex<TKey>

定义于: packages/db/src/indexes/base-index.ts:40

参数

id

number

expression

BasicExpression

name?

string

options?

any

Returns (返回)

BaseIndex<TKey>

属性

expression

readonly expression: BasicExpression;

readonly expression: BasicExpression;

定义于: packages/db/src/indexes/base-index.ts:33

id

readonly id: number;

readonly id: number;

定义于: packages/db/src/indexes/base-index.ts:31

lastUpdated

protected lastUpdated: Date;

protected lastUpdated: Date;

定义于: packages/db/src/indexes/base-index.ts:38

lookupCount

protected lookupCount: number = 0;

protected lookupCount: number = 0;

定义于: packages/db/src/indexes/base-index.ts:36

name?

readonly optional name: string;

readonly optional name: string;

定义于: packages/db/src/indexes/base-index.ts:32

supportedOperations

abstract readonly supportedOperations: Set<"eq" | "gt" | "gte" | "lt" | "lte" | "in" | "like" | "ilike">;

abstract readonly supportedOperations: Set<"eq" | "gt" | "gte" | "lt" | "lte" | "in" | "like" | "ilike">;

定义于: packages/db/src/indexes/base-index.ts:34

totalLookupTime

protected totalLookupTime: number = 0;

protected totalLookupTime: number = 0;

定义于: packages/db/src/indexes/base-index.ts:37

访问器

keyCount

Get Signature

get abstract keyCount(): number

get abstract keyCount(): number

定义于: packages/db/src/indexes/base-index.ts:59

Returns (返回)

number

方法

add()

abstract add(key, item): void

abstract add(key, item): void

定义于: packages/db/src/indexes/base-index.ts:53

参数

key

TKey

item

any

Returns (返回)

void

build()

abstract build(entries): void

abstract build(entries): void

定义于: packages/db/src/indexes/base-index.ts:56

参数

entries

Iterable<[TKey, any]>

Returns (返回)

void

clear()

abstract clear(): void

abstract clear(): void

定义于: packages/db/src/indexes/base-index.ts:57

Returns (返回)

void

evaluateIndexExpression()

protected evaluateIndexExpression(item): any

protected evaluateIndexExpression(item): any

定义于: packages/db/src/indexes/base-index.ts:87

参数

item

any

Returns (返回)

any

getStats()

getStats(): IndexStats

getStats(): IndexStats

定义于: packages/db/src/indexes/base-index.ts:74

Returns (返回)

IndexStats

initialize()

abstract protected initialize(options?): void

abstract protected initialize(options?): void

定义于: packages/db/src/indexes/base-index.ts:85

参数

options?

any

Returns (返回)

void

lookup()

abstract lookup(operation, value): Set<TKey>

abstract lookup(operation, value): Set<TKey>

定义于: packages/db/src/indexes/base-index.ts:58

参数

operation

"eq" | "gt" | "gte" | "lt" | "lte" | "in" | "like" | "ilike"

value

any

Returns (返回)

Set<TKey>

matchesField()

matchesField(fieldPath): boolean

matchesField(fieldPath): boolean

定义于: packages/db/src/indexes/base-index.ts:66

参数

fieldPath

string[]

Returns (返回)

boolean

remove()

abstract remove(key, item): void

abstract remove(key, item): void

定义于: packages/db/src/indexes/base-index.ts:54

参数

key

TKey

item

any

Returns (返回)

void

supports()

supports(operation): boolean

supports(operation): boolean

定义于: packages/db/src/indexes/base-index.ts:62

参数

operation

"eq" | "gt" | "gte" | "lt" | "lte" | "in" | "like" | "ilike"

Returns (返回)

boolean

trackLookup()

protected trackLookup(startTime): void

protected trackLookup(startTime): void

定义于: packages/db/src/indexes/base-index.ts:92

参数

startTime

number

Returns (返回)

void

update()

abstract update(
   key, 
   oldItem, 
   newItem): void

abstract update(
   key, 
   oldItem, 
   newItem): void

定义于: packages/db/src/indexes/base-index.ts:55

参数

key

TKey

oldItem

any

newItem

any

Returns (返回)

void

updateTimestamp()

protected updateTimestamp(): void

protected updateTimestamp(): void

定义于: packages/db/src/indexes/base-index.ts:98

Returns (返回)

void

BaseIndex

类: abstract BaseIndex<TKey>

继承自

类型参数

构造函数

new BaseIndex()

参数

id

expression

name?

options?

Returns (返回)

属性

expression

id

lastUpdated

lookupCount

name?

supportedOperations

totalLookupTime

访问器

keyCount

Get Signature

Returns (返回)

方法

add()

参数

key

item

Returns (返回)

build()

参数

entries

Returns (返回)

clear()

Returns (返回)

evaluateIndexExpression()

参数

item

Returns (返回)

getStats()

Returns (返回)

initialize()

参数

options?

Returns (返回)

lookup()

参数

operation

value

Returns (返回)

matchesField()

参数

fieldPath

Returns (返回)

remove()

参数

key

item

Returns (返回)

supports()

参数

operation

Returns (返回)

trackLookup()

参数

startTime

Returns (返回)

update()

参数

key

oldItem

newItem

Returns (返回)

updateTimestamp()

Returns (返回)

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