Custom JSpinner Model not working

Question

I tried to implement my own JSpinner model to accept an enumeration (including I18N), so I did like that:

searchSpinner.setModel(new AbstractSpinnerModel() {

    int index = 0;
    int minIndex = 0;
    int maxIndex = MY_ENUM.values().length - 1;
    Object selected = MY_ENUM.values()[index];

    @Override
    public Object getValue() {
        return selected;
    }

    @Override
    public void setValue(Object value) {
        selected = value;
        fireStateChanged();
    }

    @Override
    public Object getNextValue() {
        if (index < maxIndex) {
            index++;
        }
        fireStateChanged();
        return MY_ENUM.values()[index];
    }

    @Override
    public Object getPreviousValue() {
        if (index > minIndex) {
            index--;
        }
        fireStateChanged();
        return MY_ENUM.values()[index];
    }

    @Override
    public void addChangeListener(ChangeListener l) {

    }

    @Override
    public void removeChangeListener(ChangeListener l) {

    }
});

The problem is that did not work, and even the spinner list looks like disabled. What am I doing wrong?

UPDATE: Based on first answer

Answer 1

You should use ChangeListener to notify the view of changes in the model.

spinner = new JSpinner(new SpinnerModel() {
    private ChangeListener l;

    @Override
    public void setValue(Object value) {
        ...

        if(l != null) {
            l.stateChanged(new ChangeEvent(this));
        }
    }

    ...

    @Override
    public void addChangeListener(ChangeListener l) {
        this.l = l;
    }

    @Override
    public void removeChangeListener(ChangeListener l) {
        if(this.l == l) {
            this.l = null;
        }
    }
});

Edit: You can use List to register many listeners.