java - 从我的 DTO 创建列表

Question

我有一个年份对象。现在我们假设只有两年及其 getter 和 setter

private String mYearOne;
private String mYearTwo;
public String getmYearOne() {
    return mYearOne;    }
public void setmYearOne(String mYearOne) {
    this.mYearOne = mYearOne;   }
public String getmYearTwo() {
    return mYearTwo;    }
public void setmYearTwo(String mYearTwo) {
    this.mYearTwo = mYearTwo;   }

然后每年有三个保险计划。及其 getter 和 setter。

private String healthPlan;
private String carPlan;
private String housePlan;
private String healthPlanTwo;
private String carPlanTwo;
private String housePlanTwo;
public String getHealthPlan() {
    return healthPlan;  }
public void setHealthPlan(String healthPlan) {
    this.healthPlan = healthPlan;   }
public String getCarPlan() {
    return carPlan; }
public void setCarPlan(String carPlan) {
    this.carPlan = carPlan; }
public String getHousePlan() {
    return housePlan;   }
public void setHousePlan(String housePlan) {
    this.housePlan = housePlan; }
public String getHealthPlan() {  //For the second year
    return healthPlan;  }
public void setHealthPlan(String healthPlan) {
    this.healthPlan = healthPlan;   }
public String getCarPlan() {
    return carPlan; }
public void setCarPlan(String carPlan) {
    this.carPlan = carPlan; }
public String getHousePlan() {
    return housePlan;   }
public void setHousePlan(String housePlan) {
    this.housePlan = housePlan; }
public String getHealthPlanTwo() {
    return healthPlanTwo;   }
public void setHealthPlanTwo(String healthPlanTwo) {
    this.healthPlanTwo = healthPlanTwo; }
public String getCarPlanTwo() {
    return carPlanTwo;  }
public void setCarPlanTwo(String carPlanTwo) {
    this.carPlanTwo = carPlanTwo;   }
public String getHousePlanTwo() {
    return housePlanTwo;    }
public void setHousePlanTwo(String housePlanTwo) {
    this.housePlanTwo = housePlanTwo;   }

您会注意到代码很庞大。我需要在 <list> 中定义它们年。因此，如果考虑 10 年，我将乘以 10分别由 3 = 30 个计划及其 getter 和 setter 组成。

这是怎么做到的？

Answer 1

我认为最好的选择是维护保险计划的年数和数组列表。这样，您可以获得一次数组列表，并获得您真正想要的任何年份的保险计划详细信息。其特点是单一保险计划数组列表和多年的单一数组列表。

private ArrayList mYear;private ArrayList healthPlan;private ArrayList carPlan;private ArrayList housePlan;public String getHousePlanForYear(String year){return housePlan.get(mYear.indexOf(year));}public void setHousePlanForYear(String housePlan, String year){this.housePlan.set(mYear.indexOf(year), housePlan);}

其他计划也类似。当然，所有这一切都是假设年份始终存在以及其他边界条件。只需在这些 getter 和 setter 中添加边界检查即可。 :)