[rules-users] LHS compare two lists
Hi,
I'm trying to determine if a user has the required certifications for a
position. So I'm comparing the list of required certifications to the list
of User Certifications but I'm throwing a nullPointerException even though I
check to make sure the list are not null on their respective objects. How do
I iterate between both list?
rule "Determine if the user has the required certifications"
dialect 'mvel'
no-loop true
salience 80
when
$user : User()
$profile : UserProfile($userCertifications : userCertifications,
eval(userCertifications != null)) from $user.userProfile
$position : Position($certifications : requiredCertifications,
eval(requiredCertifications != null))
exists ($certification: Certification() from $certifications and
UserCertification(certification == $certification) from $userCertifications)
then
System.out.println("The user has the required certifications");
end
public UserProfile
{
List<UserCertification> userCertifications;
//more fields
}
public Position
{
List<Certification> requiredCertifications;
//more fields
}
public Certification
{
Long id;
String name;
//more fields
}
public UserCertification
{
Long id;
Date certificationDate;
Certification certification;
//more fields
}
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