Drools为会话的列表输入中的每个项触发一条规则

我正在使用决策表，希望每个输入项触发一条规则

我正在使用decision，我已将Sequential=true设置为true，并将所有规则定义为同一激活组的一部分

当我触发drools规则引擎时，它只对第一个输入项求值，其他项被忽略。我想要的行为是每个输入项最多评估一条规则（由显著性定义的规则顺序）

我可以通过一次向会话发送一个项目来实现这一点，但我更愿意一次执行所有项目

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我使用的是Drools verison 6.5.0.FINAL和Java 7。

Drools中没有现成的支持，无法实现您想要实现的目标。如果希望对每个事实对规则进行一次评估，则需要自己编写代码

一种方法可以是在处理一个输入时标记另一种类型的事实：

declare Marker
  fact : Object
end

//Bellow are the rules that should be coming from your decision table.
//Each rule will do whatever it needs to do, and then it will create a 
//Marker fact for the fact that was processed.
//These rules now include a "not" Conditional Element to avoid a fact to be
//evaluated more than once.

rule "Rule 1"
salience 100
when 
  $fact: Object(...)   //your conditions
  not Marker(fact == $fact)
then
  //...   Your logic
  insert(new Marker($fact)); 
end

...


rule "Rule 50"
salience 50
when 
  $fact: Object(...)   //your conditions
  not Marker(fact == $fact)
then
  //...   Your logic
  insert(new Marker($fact)); 
end

---

希望能有所帮助，

感谢您的回复。我现在倾向于开发一个定制解决方案，因为我面临另一个与permgen有关的drools（）问题。要配置简单的规则，似乎要做的工作太多了。

declare Marker
  fact : Object
end

//Bellow are the rules that should be coming from your decision table.
//Each rule will do whatever it needs to do, and then it will create a 
//Marker fact for the fact that was processed.
//These rules now include a "not" Conditional Element to avoid a fact to be
//evaluated more than once.

rule "Rule 1"
salience 100
when 
  $fact: Object(...)   //your conditions
  not Marker(fact == $fact)
then
  //...   Your logic
  insert(new Marker($fact)); 
end

...


rule "Rule 50"
salience 50
when 
  $fact: Object(...)   //your conditions
  not Marker(fact == $fact)
then
  //...   Your logic
  insert(new Marker($fact)); 
end