[jboss-jira] [JBoss JIRA] (DROOLS-388) Inconsistent behavior of "contains" operator

[Davide Sottara (JIRA)]

Davide Sottara created DROOLS-388:
-------------------------------------

             Summary: Inconsistent behavior of "contains" operator
                 Key: DROOLS-388
                 URL: https://issues.jboss.org/browse/DROOLS-388
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 6.0.0.Final, 5.5.1.Final
            Reporter: Davide Sottara
            Assignee: Mario Fusco
            Priority: Minor


The compiler accepts constraints such as

{code}
Person( fullName contains 'Jr' )  // should be fullName.contains('Jr')
{code}

Interestingly, MVEL evaluates it as the string "contains", but once
the constraint is jitted it is again evaluated as a collection operator.

That is, a rule such as:
{code}
  when
    $s : String( this contains "foo" ) 
  then
{code}
with inputs "foo1" .. "fooN" effectively fires an unpredictable number of times before starting to fail silently

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