@kingdom-sdk/core/dist/domain/models/ValueObject.js

Core module to design DDD applications in TypeScript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ValueObject = void 0;

var _objectHash = _interopRequireDefault(require("object-hash"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Represent a transient value.
 */
class ValueObject {
  constructor(props) {
    this.props = Object.freeze(props);
  }

  toString() {
    const classname = this.constructor.name;
    const pairs = Object.entries(this.props).map(item => `${item[0]}="${item[1]}"`).join(', ');
    return `${classname}(${pairs})`;
  }

  toHash() {
    return (0, _objectHash.default)(this.props);
  }

  equals(other) {
    if (!(other instanceof ValueObject)) {
      return false;
    }

    return this.toHash() === other.toHash();
  }

}

exports.ValueObject = ValueObject;