Question

我需要以下规则的帮助：

多个连续存款的帐户，并且在4小时后立即进行多次提取，其金额等于使用同一银行中的不同ATM存入的相同金额。（最后一次存款和第一次提取之间没有中间操作）

我有班级操作：帐户，金额，操作，ATM，时间戳。

我有这条规则：

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之前的规则返回在同一家银行的不同ATM中进行了4次以上操作的账户的存款总和，我怀疑的是如何考虑它们是连续的以及4小时后比较之前的与该帐户提取的总和相加。

Answer 1

如果此规则触发，

rule "set up Monitor"
when
  $op1: Operation( $a:account, $b:bank, $amt1:amount, operation‌=="CREDIT", $atm1: atm )
  $op2: Operation( account==$a, bank==$b, $amt2:amount, operation‌=="CREDIT", atm!= $atm1 )
  not Operation(account == $acc, atm != $atm1, bank == $b,
                this before $op2, this after $op1 )
  not Monitor( bank == $bank, account == $acc )
then
  insert( new Monitor( $bank, $acc, $amt1 + $amt2, "CREDIT" );
end

您已插入显示器。监视器具有明显的字段和状态字段，设置为“CREDIT”。

rule "add deposit"
when
  $op1: Operation( $a:account, $b:bank, $amt1:amount, operation‌=="CREDIT", $atm1: atm )
  $mon: Monitor( account==$a, bank==$b, $bal: balance, state == "CREDIT" )
then
  // another deposit
  modify( $op1 ){ setAmount( $bal + $amt1 ) }
end

通过此事件，州将变为退出。

rule "state changes to withdrawal"
when
  $op1: Operation( $a:account, $b:bank, $amt1: amount, operation‌=="WITHDRAW", $atm1: atm )
  $mon: Monitor( account==$a, bank==$b, $bal: balance, state == "CREDIT" )
then
  // switch to withdraw
  modify( $op1 ){ setAmount( $bal + $amt1 ),
                  setState( "WITHDRAW" ) }
end

这里开始变得凌乱。我们需要检查这（第一次）提款是否兑现所有存款（balance == $amt1）或仅减少余额或提取超过之前的存款顺序。

我退出了这里，但我想我已经表明这不可能用一条规则来做。

在drools中处理连续事件

1 个答案: