_isMandatory = ERXUtilities.booleanValue(aValue);
_isMandatory = ERXValueUtilities.booleanValue(aValue);
    public void setIsMandatory(Object aValue) {        try {            _isMandatory = ERXUtilities.booleanValue(aValue);        } catch (Throwable e) {            String error = "WOToOneRelationship (setIsMandatory) - unable to set isMandatory value "+e.getMessage();            NSLog.err.appendln(error);        }    }