public void SubmitOrderByDefaultSpecManager()
{
var manager = OrderSpecificationManagerFactory.CreateNewOrderSpecificationManager();
OrderBusiness business = new OrderBusiness(manager);
using (manager)
{
var orderList = new List <Order>()
{
new Order()
{
Customer = new Customer()
{
CustomerType = CustomerType.Normal
}
},
new Order()
{
Customer = new Customer()
{
CustomerType = CustomerType.Vip
}
}
};
Console.WriteLine("---Submit Order By Default SpecManager---");
orderList.ForEach(o => business.SubmitOrder(o));
}
//manager 的dispose方法会被调用，在此方法中OrderSpecificationManagerFactory将默认规则管理器持久化起来
}
public void SubmitOrderByEditedSpecManager()
{
OrderSpecificationManager manager = OrderSpecificationManagerFactory.CreateNewOrderSpecificationManager();
//动态修改规则
manager.Specification[CustomerType.Normal] = (o => o.Customer.CustomerType == CustomerType.Vip);
OrderBusiness business = new OrderBusiness(manager);
//如果程序在别的机子上，也可以通过using将改变后的规则持久化，这新规则被保存到新的目录中，不会覆盖初始规则
var orderList = new List <Order>()
{
new Order()
{
Customer = new Customer()
{
CustomerType = CustomerType.Normal
}
},
new Order()
{
Customer = new Customer()
{
CustomerType = CustomerType.Vip
}
}
};
Console.WriteLine("---Submit Order By Edited SpecManager---");
orderList.ForEach(o => business.SubmitOrder(o));
//还原规则
manager = OrderSpecificationManagerFactory.RebuildOrderSpecificationManager();
business = new OrderBusiness(manager);
Console.WriteLine("---Submit Order By RebuildOrderSpecificationManager---");
orderList.ForEach(o => business.SubmitOrder(o));
}