[rules-users] Test for Empty String?

[Jason Davidson]

Hello,

Is there an easy way to test if a String value is empty?  I've been doing
this (Drools 4.0.7):
    when CitationDTO
        (
            charge != null   &&
            charge.drivingIncidentLegalSpeedRate != null   &&
            charge.drivingIncidentLegalSpeedRate != ""
        )
    then ......

It seems like there has to be a better method.

Thanks,
Jason
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