@dolittle/sdk.aggregates/Distribution/aggregateRootDecorator.js

Dolittle is a decentralized, distributed, event-driven microservice platform built to harness the power of events.

"use strict";
// Copyright (c) Dolittle. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
Object.defineProperty(exports, "__esModule", { value: true });
exports.getDecoratedAggregateRootType = exports.isDecoratedAggregateRootType = exports.aggregateRoot = void 0;
const sdk_artifacts_1 = require("@dolittle/sdk.artifacts");
const sdk_common_1 = require("@dolittle/sdk.common");
const sdk_events_1 = require("@dolittle/sdk.events");
const AggregateRootType_1 = require("./AggregateRootType");
const AggregateRootTypeAlias_1 = require("./AggregateRootTypeAlias");
const [decorator, getMetadata] = sdk_common_1.Decorators.createMetadataDecorator('aggregate-root-type', 'aggregateRoot', sdk_common_1.Decorators.DecoratorTarget.Class);
/**
 * Decorator to mark a class as an aggregate root.
 * @param {AggregateRootIdLike} aggregateRootId - The identifier of the aggregate root.
 * @param {AggregateRootTypeOptions} [options={}] - Options to give to the aggregate root.
 * @returns {Decorators.Decorator} The decorator.
 */
function aggregateRoot(aggregateRootId, options = {}) {
    return decorator((target, type) => {
        var _a;
        return new AggregateRootType_1.AggregateRootType(sdk_events_1.AggregateRootId.from(aggregateRootId), sdk_artifacts_1.Generation.first, AggregateRootTypeAlias_1.AggregateRootTypeAlias.from((_a = options.alias) !== null && _a !== void 0 ? _a : type.name));
    });
}
exports.aggregateRoot = aggregateRoot;
/**
 * Checks whether the specified class is decorated with an aggregate root type.
 * @param {Constructor<any>} type - The class to check the decorated aggregate root type for.
 * @returns {boolean} True if the decorator is applied, false if not.
 */
function isDecoratedAggregateRootType(type) {
    return getMetadata(type, false, false) !== undefined;
}
exports.isDecoratedAggregateRootType = isDecoratedAggregateRootType;
/**
 * Gets the decorated aggregate root type of the specified class.
 * @param {Constructor<any>} type - The class to get the decorated aggregate root type for.
 * @returns {AggregateRootType} The decorated aggregate root type.
 */
function getDecoratedAggregateRootType(type) {
    return getMetadata(type, true, 'Classes used as aggregate roots must be decorated');
}
exports.getDecoratedAggregateRootType = getDecoratedAggregateRootType;
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