java - JavaFX BooleanBinding Partially Working for Multiple Validation

Question

I have a BooleanBinding in JavaFX whose logic is like:

if certificationType is not equal to noCertificationType 
then
   return true
else if (certificationType is equal to recordsVerificationCertificationType or landHoldingsCertificationType) and applicationPropertyObservableList is not empty 
then
   return true
else
   return false
end if

I wrote a method to express such validation as follows:

private BooleanBinding certificationTypeBooleanBinding() {
    return Bindings.createBooleanBinding(() ->
            !this.certificationType.getValue().equals(Applications.noCertificationType()) || (
                    (this.certificationType.getValue().equals(Applications.recordsVerificationCertificationType()) ||
                            this.certificationType.getValue().equals(Applications.landHoldingsCertificationType())
                    ) && !this.applicationPropertyObservableList.getValue().isEmpty()
            ), this.certificationType, this.applicationPropertyObservableList);
}

Only !this.certificationType.getValue().equals(Applications.noCertificationType()) works. The or (|| ()) part does not.

How do I make it work? Thank you.

Answer 1

等待大神答复