[rules-users] semantically equivalent DROOLS L-value expressions?

[Cotton.Ben]

This still shows R1 as a syntax error in Eclipse .DRL view (Drools 5.2).  R2
has no syntax error.  Are R1 and R2 semantically the same?

rule "R1" //XLS Item=7 
    when  
        Message( 
             ((businessDayConvention == "foo" && _calendar == "bar") ||
_calendar== "foo") //syntax error
        ) 
    then 
        System.out.println( "RULE pattern-matched Message.  DROOLS
Consequence executing now." );    
end


BuildError: Unable to Analyse Expression businessDayConvention == "foo" &&
_calendar == "bar" || 
 _calendar == "foo": [Error: no such identifier: _calendar] [Near : {...
vention == "foo" && _calendar 
 == "bar" || _calenda ....}] ^ [Line: 1, Column: 35]



rule "R2" //XLS Item=7 
    when  
        Message (businessDayConvention != "foo" && _calendar == "bar") ||
        Message (businessDayConvention == "foo")
    then 
        System.out.println( "RULE pattern-matched Message.  DROOLS
Consequence executing now." );    
end
    




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