Class EventBus

Index

Constructors

Methods

clear emit eventTypes getEmitCount getErrorCount getStats listenerCount off on subscribe totalSubscriptions

Constructors

constructor

new EventBus(options?: EventBusOptions): EventBus
Parameters
- Optionaloptions: EventBusOptions
Returns EventBus
- Defined in kernel/dist/event-bus.d.ts:41

Methods

clear

clear(): void
Clear all subscriptions

Returns void
- Defined in kernel/dist/event-bus.d.ts:67

emit

emit<T = unknown>(event: Omit<Event<T>, "id" | "timestamp">): Promise<Event<T>>
Publish an event to all subscribers Handlers execute in priority order (highest first)
Type Parameters
- T = unknown
Parameters
- event: Omit<Event<T>, "id" | "timestamp">
Returns Promise<Event<T>>
- Defined in kernel/dist/event-bus.d.ts:55

eventTypes

eventTypes(): string[]
Get all registered event types

Returns string[]
- Defined in kernel/dist/event-bus.d.ts:75

getEmitCount

getEmitCount(): number
Get emit count

Returns number
- Defined in kernel/dist/event-bus.d.ts:83

getErrorCount

getErrorCount(): number
Get error count

Returns number
- Defined in kernel/dist/event-bus.d.ts:87

getStats

getStats(): {
    emitCount: number;
    errorCount: number;
    eventTypes: number;
    totalSubscriptions: number;
}
Get statistics

Returns {
    emitCount: number;
    errorCount: number;
    eventTypes: number;
    totalSubscriptions: number;
}
- Defined in kernel/dist/event-bus.d.ts:91

listenerCount

listenerCount(eventType: string): number
Get the number of subscribers for an event type
Parameters
- eventType: string
Returns number
- Defined in kernel/dist/event-bus.d.ts:71

off

off(eventType: string): void
Remove all handlers for an event type
Parameters
- eventType: string
Returns void
- Defined in kernel/dist/event-bus.d.ts:63

on

on<T = unknown>(
    eventType: string,
    handler: EventHandler<T>,
    priority?: number,
): EventSubscription
Subscribe to an event type with optional priority Higher priority handlers execute first
Type Parameters
- T = unknown
Parameters
- eventType: string
- handler: EventHandler<T>
- Optionalpriority: number
Returns EventSubscription
- Defined in kernel/dist/event-bus.d.ts:46

subscribe<T = unknown>(
    eventType: string,
    handler: EventHandler<T>,
    priority?: number,
): EventSubscription
Subscribe to an event type (alias for on)
Type Parameters
- T = unknown
Parameters
- eventType: string
- handler: EventHandler<T>
- Optionalpriority: number
Returns EventSubscription
- Defined in kernel/dist/event-bus.d.ts:50

totalSubscriptions

totalSubscriptions(): number
Get total number of subscriptions

Returns number
- Defined in kernel/dist/event-bus.d.ts:79