package com.design.strategy;

/**
 * Description: 收银总体管理上下文，维护对策略对象的引用以及上下文接口
 * All Rights Reserved.
 * @version 1.0  2017年11月15日 下午2:14:03  by Nina
 */
public class CashierContext {
    private CashierStrategy cashierStrategy;
    
    public CashierContext(String type){
        switch(type){
            case "满300减100":
                this.cashierStrategy = new CashierFullCut(300, 100);
                break;
            case "八折":
                this.cashierStrategy = new CashierDisCount(0.8);
                break;
            default:
                this.cashierStrategy = new CashierNormal();
        }
    }
    //上下文接口
    public double calcPrice(double price){
        return this.cashierStrategy.getTotalPrice(price);
    }
}