How to disable wicket's setRequired for certain cases

Question

I am fairly new to wicket and have just come across setRequired.

I have 5 textfields

    final TextField<String> mfnField = new TextField<>("mfn",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getMfn()));
        form.add(mfnField);
        mfnField.setOutputMarkupId(true);
        form.add(new FdsInfoButton("mfn.infoButton", new ResourceModel("mfn.infoButton")));
        form.add(new FormComponentFeedbackPanel("mfnFeedbackPanel", mfnField));

final TextField<String> pbField = new TextField<>("pid",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getPBId()));
        form.add(pbField);
        pbField.setOutputMarkupId(true);
        form.add(new FormComponentFeedbackPanel("pidFeedbackPanel", pbField));

        final TextField<String> gpidField = new TextField<>("gpid",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getGpid()));
        form.add(gpidField);
        gpidField.setOutputMarkupId(true);
        form.add(new FormComponentFeedbackPanel("gpidFeedbackPanel", gpidField));

        final TextField<String> tidField = new TextField<>("tid",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getTransaction_id()));
        form.add(tidField);
        form.add(new FdsInfoButton("tid.infoButton", new ResourceModel("tid.infoButton")));
        form.add(new FormComponentFeedbackPanel("tidFeedbackPanel", tidField));
final TextField<String> ibanField = new TextField<>("iban",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getIban()));
        form.add(ibanField);
        ibanField.setOutputMarkupId(true);
        form.add(new FormComponentFeedbackPanel("ibanFeedbackPanel", ibanField));   

I have a fromfield and a tofield:

final DateTimePicker fromInput = new DateTimePicker("from",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getFromDate()),
                DateTimePicker.START_OF_DAY);
        form.add(fromInput);
        form.add(new FormComponentFeedbackPanel("fromFeedbackPanel", fromInput));

        final DateTimePicker toInput = new DateTimePicker("to",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getToDate()),
                DateTimePicker.END_OF_DAY);
        form.add(toInput);
        form.add(new FormComponentFeedbackPanel("toFeedbackPanel", toInput));

Out of the 5 textfields:

• if anything is entered in the 1st four then I will need fromfield and tofield to be entered as well so for this setRequired should be true
• but if there's anything entered into tidField, regardless of the other textfields being empty or filled, setRequired should be false for the frominput and toinput.

My question is how do I set the true and false.

Or is there something else I can use other than setRequired?

Answer 1

I found the solution: I had to use isRequired and not setRequired

final DateTimePicker fromInput = new DateTimePicker("from",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getFromDate()),
                DateTimePicker.START_OF_DAY) {
            /**
             *
             */
            private static final long serialVersionUID = 1L;

            @Override
            public boolean isRequired() {
                return Strings.isBlank(tidField.getConvertedInput());
            }

        };
        form.add(fromInput);
        form.add(new FormComponentFeedbackPanel("fromFeedbackPanel", fromInput));

        final DateTimePicker toInput = new DateTimePicker("to",
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getToDate()),
                DateTimePicker.END_OF_DAY) {

            /**
                     *
                     */
            private static final long serialVersionUID = 1L;

            @Override
            public boolean isRequired() {
                return Strings.isBlank(tidField.getConvertedInput());
            }
        };
        form.add(toInput);