Function: Transient()

Transient<ClassConstructor>(lock?): ClassDecorator<ClassConstructor>

Make the class transient: the container creates a new instance on each request (each getObject() and each injection), never cached. Shorthand of @Lifetime('TRANSIENT', lock); the default of BaseObject.

Type Parameters

ClassConstructor

ClassConstructor extends typeof BaseObject

Parameters

lock?

boolean

Whether the subclasses are forbidden to change the lifetime (they may still declare the same one). Default false.

Returns

ClassDecorator<ClassConstructor>

The class decorator.

Throws

When the class is defined, if a parent class locked another lifetime.

Example

import {Provider} from 'lakutata'
import {Transient} from 'lakutata/decorator/di'

//Each user of the builder gets its own, with its own state
@Transient()
export class QueryBuilder extends Provider {
    protected readonly clauses: string[] = []

    public where(clause: string): this {
        this.clauses.push(clause)
        return this
    }
}