Class ObservableRegistry

An internal interface for managing ObservableCallbacks.

Every registered callback associated with a set of instruments are be evaluated exactly once during collection prior to reading data for that instrument.

Hierarchy

ObservableRegistry

Index

Constructors

constructor

Methods

Constructors

constructor

new ObservableRegistry(): ObservableRegistry

Returns ObservableRegistry

Methods

addBatchCallback

addBatchCallback(callback: BatchObservableCallback<Attributes>, instruments: Observable<Attributes>[]): void

- Defined in packages/sdk-metrics/src/state/ObservableRegistry.ts:81
Parameters
- callback: BatchObservableCallback<Attributes>
- instruments: Observable<Attributes>[]
Returns void

addCallback

addCallback(callback: ObservableCallback<Attributes>, instrument: ObservableInstrument): void

- Defined in packages/sdk-metrics/src/state/ObservableRegistry.ts:62
Parameters
- callback: ObservableCallback<Attributes>
- instrument: ObservableInstrument
Returns void

observe

observe(collectionTime: HrTime, timeoutMillis?: number): Promise<unknown[]>

- Defined in packages/sdk-metrics/src/state/ObservableRegistry.ts:121
Parameters
- collectionTime: HrTime
- Optional timeoutMillis: number
Returns Promise<unknown[]>
a promise of rejected reasons for invoking callbacks.

removeBatchCallback

removeBatchCallback(callback: BatchObservableCallback<Attributes>, instruments: Observable<Attributes>[]): void

- Defined in packages/sdk-metrics/src/state/ObservableRegistry.ts:103
Parameters
- callback: BatchObservableCallback<Attributes>
- instruments: Observable<Attributes>[]
Returns void

removeCallback

removeCallback(callback: ObservableCallback<Attributes>, instrument: ObservableInstrument): void

- Defined in packages/sdk-metrics/src/state/ObservableRegistry.ts:70
Parameters
- callback: ObservableCallback<Attributes>
- instrument: ObservableInstrument
Returns void

Generated using TypeDoc