salesforce 零基础学习（六十三）Comparable实现Object列表数据的自定义排序

 1 public without sharing class ComparedGoods implements Comparable{
 2     private Goods__c goods{get;set;}
 3     
 4     private static final String GOODS_BRAND_HUAWEI = '华为';
 5     
 6     private static final String GOODS_BRAND_LIANXIANG = '联想';
 7     
 8     public ComparedGoods(Goods__c obj) {
 9         goods = obj;
10     }
11     
12     public Integer compareTo(Object objectToCompareTo) {
13             Goods__c comparedGoods = (Goods__c)objectToCompareTo;
14             Integer comparedResult = 0;
15             if(comparedGoods.GoodsBrand__c == GOODS_BRAND_HUAWEI) {
16                 if(goods.GoodsPrice__c > comparedGoods.GoodsPrice__c) {
17                     comparedResult = 1;
18                 } else if(goods.GoodsPrice__c < comparedGoods.GoodsPrice__c) {
19                     comparedResult = -1;
20                 }
21             } else if(comparedGoods.GoodsBrand__c == GOODS_BRAND_LIANXIANG) {
22                 if(goods.GoodsPrice__c > comparedGoods.GoodsPrice__c) {
23                     comparedResult = -1;
24                 } else if(goods.GoodsPrice__c == comparedGoods.GoodsPrice__c) {
25                     comparedResult = 0;
26                 } 
27                 else if(goods.GoodsPrice__c < comparedGoods.GoodsPrice__c) {
28                     comparedResult = 1;
29                 }
30             }
31             return comparedResult;
32     }
33 }