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https://issues.jboss.org/browse/DROOLS-1461?page=com.atlassian.jira.plugi...
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Matteo Mortari commented on DROOLS-1461:
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I'm also voting for close/reject this issue, as the second rule in the description has
a different semantic than what intended by the reporter, I think.
The second rule semantic means, check {{message}} is contained {{in}} the elements within
the round parenthesis. Now the message property (String) is NOT contained in the set of
elements contaning 1 element, the global {{$myGlobal}} which is in itself a list.
In other words and pseudocode it's checking if:
{code:java}
"anton" ⊆ { ["anton", "giertli"] }
{code}
which is false. Please notice the set on the right (marked by the { } parenthesis)
contains 1 element, the list represented by the [ ] parenthesis
----
This can be demonstrated also by changing the test for message to contain an arbitrary
Object, as:
!screenshot-1.png|thumbnail!
which would realize the check
{code:java}
["anton", "giertli"] ⊆ { ["anton", "giertli"] }
{code}
which is then true, and making {{testInOperator()}} pass.
----
Please notice only the *_first_* rule in the description is doing semantically what I
expect is actually desired by the reporter which is:
{code:java}
"anton" ⊆ { "anton", "giertli" }
{code}
(you can notice now the set on the right marked by the { } parenthesis contains 2
elements)
In operator doesn't work with variable
--------------------------------------
Key: DROOLS-1461
URL:
https://issues.jboss.org/browse/DROOLS-1461
Project: Drools
Issue Type: Bug
Components: core engine
Reporter: Anton Giertli
Assignee: Mario Fusco
Attachments: operators.zip, screenshot-1.png
This works just fine:
{code:java}
rule "checkFirstName"
dialect "mvel"
when
Message( message in ( "anton","giertli") )
then
System.out.println("LHS OK");
end
{code}
But rule like this, won't fire:
{code:java}
global java.util.List $myGlobal;
rule "checkFirstName"
dialect "mvel"
when
Message( message in ( $myGlobal) )
then
System.out.println("LHS OK");
end
{code}
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