抽象工厂模式

  • 抽象工厂模式提供一个创建一系列相关或相互依赖对象的接口 而无须指定它们具体的类

实现

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abstract class Database {
  constructor(public username: string = 'admin', public password: string = '123456') {
    this.username = username;
    this.password = password;
  }
  public abstract getDetails(): void
  public setDetails(username: string, password: string) {
    console.log(username, password);
    // 然后根据不同数据库执行不同的初始用户逻辑
  }
}

class Sql extends Database {
  constructor(username: string, password: string) {
    super(username, password)
  }
  public getDetails() {
    const sqlUserName = this.username + 'Sql'
    const sqlPassWord = this.password + 'Sql'
    this.setDetails(sqlUserName, sqlPassWord)
  }
}

class Mysql extends Database {
  constructor(username: string, password: string) {
    super(username, password)
  }
  public getDetails() {
    const mysqlUserName = this.username + 'Mysql'
    const mysqlPassWord = this.password + 'Mysql'
    this.setDetails(mysqlUserName, mysqlPassWord)
  }
}

const ConnectSql = new Sql('aaa', 'bbb')
ConnectSql.getDetails()

const ConnectMysql = new Mysql('cccc', 'ddd')
ConnectMysql.getDetails()

参考链接