nestjs-event-sourcing-lib/dist/decorators/projection.decorator.js

A comprehensive Event Sourcing and CQRS library for NestJS applications

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PROJECTION_METADATA = void 0;
exports.Projection = Projection;
exports.getProjectionMetadata = getProjectionMetadata;
const common_1 = require("@nestjs/common");
/**
 * Key for projection metadata
 */
exports.PROJECTION_METADATA = Symbol('PROJECTION_METADATA');
/**
 * Decorator to mark class as projection
 */
function Projection(metadata) {
    return function (constructor) {
        const projectionMetadata = {
            name: (metadata === null || metadata === void 0 ? void 0 : metadata.name) || constructor.name,
            eventTypes: (metadata === null || metadata === void 0 ? void 0 : metadata.eventTypes) || [],
            autoUpdate: (metadata === null || metadata === void 0 ? void 0 : metadata.autoUpdate) !== false,
            snapshotFrequency: (metadata === null || metadata === void 0 ? void 0 : metadata.snapshotFrequency) || 0,
        };
        (0, common_1.SetMetadata)(exports.PROJECTION_METADATA, projectionMetadata)(constructor);
        (0, common_1.Injectable)()(constructor);
        return constructor;
    };
}
/**
 * Function to get projection metadata
 */
function getProjectionMetadata(target) {
    return Reflect.getMetadata(exports.PROJECTION_METADATA, target);
}
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