[jboss-jira] [JBoss JIRA] (DROOLS-4342) Using BigDecimal with From Accumulate causes an "Error: argument type mismatch"
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https://issues.jboss.org/browse/DROOLS-4342?page=com.atlassian.jira.plugi...
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Luca Molteni commented on DROOLS-4342:
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It's indeed a type mismatch, as the accumulate over a BigDecimal will return a Double
and in the consequence you try to set it to a BigDecimal field.
Please change this rule like this:
rule "rule"
dialect "mvel"
when
voucher : Voucher( )
sumBilledAmounts : Number( ) from accumulate ( bill : Bill( billedAmount != null ),
sum(bill.billedAmount))
then
modify( voucher ) {
setTotal( BigDecimal.valueOf(sumBilledAmounts.doubleValue()) )
}
end
In this way you get the best data type for accumulating and at the same time you can
decide which type (and precision) to set in the actual field.
Using BigDecimal with From Accumulate causes an "Error: argument
type mismatch"
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Key: DROOLS-4342
URL: https://issues.jboss.org/browse/DROOLS-4342
Project: Drools
Issue Type: Bug
Components: kie server
Environment: Red Hat Process Automation Manager (RHPAM) 7.2.0
Reporter: Rodrigo Ribeiro
Assignee: Luca Molteni
Priority: Major
Labels: BigDecimal, DRL, bigdecimal, drl, kie-server, rhpam, rule
Attachments: reproducer-02425606.zip, request.json, testSum.scenario
When written a rule that does a sum using ‘from accumulate’. The rule validates
successfully. However, when trying to test it, is returned a very generic error message:
Error: argument type mismatch.
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