[jboss-jira] [JBoss JIRA] Updated: (JBRULES-954) '==' & '!=' not working properly with globals

[Brian Enderle (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-954?page=all ]

Brian Enderle updated JBRULES-954:
----------------------------------

    Description: 
The equality operators (== & !=) are not working correctly when comparing a value to a global.  This holds true for globals of the type java.lang.Character, java.lang.String and java.lang.Long (only ones I tested, but probably others as well).

Given:

Person object with sex set to 'M'

rule "Must be male"
   when
      $p : Person ( sex == 'M' )
   then
      System.out.println ( "- This is a man" );
end

rule "Cannot be a man"
   when
      $p : Person ( sex != 'M')
   then
      System.out.println ( "- This must be a woman")
end

Results:
- This is a man



If we replace the 'M' with the global "maleCode" and set it to 'M' in our calling program then,


gloabl java.lang.Character maleCode;

rule "Must be male"
   when
      $p : Person ( sex == maleCode )
   then
      System.out.println ( "- This is a man" );
end

rule "Cannot be a man"
   when
      $p : Person ( sex != maleCode)
   then
      System.out.println ( "- This must be a woman")
end

Results:
- This is a man
- This must be a woman

Both rules are passing when one, the latter, should fail

Brian Enderle

  was:
The equality operators (== & !=) are not working correctly when comparing a value to a global.  This holds true for globals of the type java.lang.Character and java.lang.String.

Given:

Person object with sex set to 'M'

rule "Must be male"
   when
      $p : Person ( sex == 'M' )
   then
      System.out.println ( "- This is a man" );
end

rule "Cannot be a man"
   when
      $p : Person ( sex != 'M')
   then
      System.out.println ( "- This must be a woman")
end

Results:
- This is a man



If we replace the 'M' with the global "maleCode" and set it to 'M' in our calling program then,


gloabl java.lang.Character maleCode;

rule "Must be male"
   when
      $p : Person ( sex == maleCode )
   then
      System.out.println ( "- This is a man" );
end

rule "Cannot be a man"
   when
      $p : Person ( sex != maleCode)
   then
      System.out.println ( "- This must be a woman")
end

Results:
- This is a man
- This must be a woman

Both rules are passing when one, the latter, should fail

Brian Enderle


> '==' & '!=' not working properly with globals
> ---------------------------------------------
>
>                 Key: JBRULES-954
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-954
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions:  4.0.0.MR3
>         Environment: Windows XP, Drools MR3
>            Reporter: Brian Enderle
>         Assigned To: Mark Proctor
>
> The equality operators (== & !=) are not working correctly when comparing a value to a global.  This holds true for globals of the type java.lang.Character, java.lang.String and java.lang.Long (only ones I tested, but probably others as well).
> Given:
> Person object with sex set to 'M'
> rule "Must be male"
>    when
>       $p : Person ( sex == 'M' )
>    then
>       System.out.println ( "- This is a man" );
> end
> rule "Cannot be a man"
>    when
>       $p : Person ( sex != 'M')
>    then
>       System.out.println ( "- This must be a woman")
> end
> Results:
> - This is a man
> If we replace the 'M' with the global "maleCode" and set it to 'M' in our calling program then,
> gloabl java.lang.Character maleCode;
> rule "Must be male"
>    when
>       $p : Person ( sex == maleCode )
>    then
>       System.out.println ( "- This is a man" );
> end
> rule "Cannot be a man"
>    when
>       $p : Person ( sex != maleCode)
>    then
>       System.out.println ( "- This must be a woman")
> end
> Results:
> - This is a man
> - This must be a woman
> Both rules are passing when one, the latter, should fail
> Brian Enderle

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