滴料 - 双量

Question

我创建像条件如下：

$event : EventObject(type=='Sale', $points:points, $playerid:playerid) from 
entry-point eventstream 

这样的结果，我需要的变量传递到以下几点：

boolean givePointsToPlayer(String playerId, 
         String pointType, 
         double amount, 
         String notificationMessage) 

最简单的例子下面是我给这个玩家3分

updateAPIv1.givePointsToPlayer($playerid, 'Points', 3, 'Points Awarded'); 
update(engine.getPlayerById($playerid)); 

但是，我想通过$ points：points to'double amoun T”。

简单的问题我知道，但我怎么做到最好？就像是？

$points=double amount; 
updateAPIv1.givePointsToPlayer($playerid, 'Points', amount, 'Points Awarded'); 
update(engine.getPlayerById($playerid));; 

欣赏反馈。谢谢。

***更新我也

$event : EventObject(type=='Sale', $points:points, $playerid:playerid) 
      from entry-point eventstream  

updateAPIv1.givePointsToPlayer($playerid, 'Points', $points, 'Points Awarded'); 
update(engine.getPlayerById($playerid));  

尝试，但我得到以下错误此

"Unable to create Field Extractor for 'points' 
    Field/method 'points' not found for class 'com.sap.gamification.model.EventObject" 
    "Rule Compilation error $points cannot be resolved " 

对这个有什么想法？

Answer 1

由于这是一个无效的语句，因此您应该赶快掌握Java语法。

$points=double amount; 

不过，你不需要绑定变量（$points）的值存储在后果另一个变量。你可以写这个调用：

updateAPIv1.givePointsToPlayer($playerid, 'Points', $points, 'Points Awarded'); 

思考的必然事实领域“最后的”变量变数：你可以访问值，但不能改变它。

编辑这假定您有：

public class EventObject { 
    private double points; 
    public double getPoints(){ return points; } 
    // ... rest of class 
}