@nocobase/flow-engine/lib/event-registry/ModelEventRegistry.js

A standalone flow engine for NocoBase, managing workflows, models, and actions.

/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var ModelEventRegistry_exports = {};
__export(ModelEventRegistry_exports, {
  ModelEventRegistry: () => ModelEventRegistry
});
module.exports = __toCommonJS(ModelEventRegistry_exports);
var import_BaseEventRegistry = require("./BaseEventRegistry");
const _ModelEventRegistry = class _ModelEventRegistry extends import_BaseEventRegistry.BaseEventRegistry {
  modelClass;
  parentRegistry;
  // 本类变更标记（变更即更新引用，用于缓存命中判断）
  changeMarker = {};
  // 合并缓存：父类合并快照引用 + 本类标记 + 合并后的 Map
  mergedCache;
  constructor(modelClass, parentRegistry) {
    super();
    this.modelClass = modelClass;
    this.parentRegistry = parentRegistry ?? null;
  }
  // 标记本类有变更（用于缓存命中判断）
  onEventRegistered() {
    this.changeMarker = {};
  }
  /**
   * 获取“包含继承”的合并事件（父 → 子），内部带缓存。
   */
  getEvents() {
    var _a;
    const parentMap = (_a = this.parentRegistry) == null ? void 0 : _a.getEvents();
    if (this.mergedCache && this.mergedCache.parentSnapshot === parentMap && this.mergedCache.localMarker === this.changeMarker) {
      return this.mergedCache.mergedMap;
    }
    const mergedMap = new Map(parentMap ?? []);
    for (const [k, v] of this.events) mergedMap.set(k, v);
    this.mergedCache = { parentSnapshot: parentMap, localMarker: this.changeMarker, mergedMap };
    return mergedMap;
  }
  /**
   * 解析指定名称的事件（优先本类，未命中递归父类）。
   */
  getEvent(name) {
    var _a;
    const own = this.events.get(name);
    if (own) return own;
    return (_a = this.parentRegistry) == null ? void 0 : _a.getEvent(name);
  }
};
__name(_ModelEventRegistry, "ModelEventRegistry");
let ModelEventRegistry = _ModelEventRegistry;
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  ModelEventRegistry
});