@Named
@ViewScoped
public class AdvancedDynaFormController implements Serializable {

    private static final long serialVersionUID = 20120423L;

    private DynaFormModel model;

    @PostConstruct
    protected void initialize() {
        model = new DynaFormModel();

        // add rows, labels and editable controls
        // set relationship between label and editable controls to support outputLabel
        // with "for" attribute

        // 1. regular row
        DynaFormRow row = model.createRegularRow();

        final DynaFormLabel label11 = row.addLabel("Ref. No. 1", 1, 1);
        final DynaFormControl control12 = row.addControl(new InventoryProperty("(1,2)", false), "input", 1, 1);
        label11.setForControl(control12);

        final DynaFormLabel label13 = row.addLabel("Ref. No. 2", 1, 1);
        final DynaFormControl control14 = row.addControl(new InventoryProperty("(1,4)", false), "input", 1, 1);
        label13.setForControl(control14);

        final DynaFormLabel label15 = row.addLabel("Ref. No. 3", 1, 1);
        final DynaFormControl control16 = row.addControl(new InventoryProperty("(1,6)", false), "input", 1, 1);
        label15.setForControl(control16);

        // 2. regular row
        row = model.createRegularRow();

        final DynaFormLabel label21 = row.addLabel("Ref. No. 4", 1, 1);
        final DynaFormControl control22 = row.addControl(new InventoryProperty("(2,2)", false), "input", 1, 1);
        label21.setForControl(control22);

        final DynaFormLabel label23 = row.addLabel("Ref. No. 5 (this field requires any not empty input)", 3, 1);
        final DynaFormControl control24 = row.addControl(new InventoryProperty("(2,4)", "555-555", true), "input", 1,
                    1);
        label23.setForControl(control24);

        // 3. regular row
        row = model.createRegularRow();

        final DynaFormLabel label31 = row.addLabel("Date from", 1, 1);
        final DynaFormControl control32 = row.addControl(new InventoryProperty("(3,2)", false), "date", 1, 1);
        label31.setForControl(control32);

        final DynaFormLabel label33 = row.addLabel("Date till", 1, 1);
        final DynaFormControl control34 = row.addControl(new InventoryProperty("(3,4)", false), "date", 1, 1);
        label33.setForControl(control34);

        final DynaFormLabel label35 = row.addLabel("Expiry", 1, 1);
        final DynaFormControl control36 = row.addControl(new InventoryProperty("(3,6)", new Date(), true), "date", 1,
                    1);
        label35.setForControl(control36);

        // 1. extended row
        row = model.createExtendedRow();

        row.addControl("Ref. No. 6", 1, 1);
        row.addControl(new InventoryProperty("(4,2)", false), "input", 1, 1);

        row.addControl("Ref. No. 7", 1, 1);
        row.addControl(new InventoryProperty("(4,4)", false), "input", 1, 1);

        row.addControl("Ref. No. 8", 1, 1);
        row.addControl(new InventoryProperty("(4,6)", false), "input", 1, 1);

        // 2. extended row
        row = model.createExtendedRow();

        row.addControl("Advanced inventory description", 2, 1);
        row.addControl(new InventoryProperty("(5,2)", false), "desc", 4, 1);
    }

    public DynaFormModel getModel() {
        return model;
    }

    public List<InventoryProperty> getInventoryProperties() {
        if (model == null) {
            return null;
        }

        final List<InventoryProperty> inventoryProperties = new ArrayList<InventoryProperty>();
        for (final DynaFormControl dynaFormControl : model.getControls()) {
            if (dynaFormControl.getData() instanceof InventoryProperty) {
                inventoryProperties.add((InventoryProperty) dynaFormControl.getData());
            }
        }

        return inventoryProperties;
    }

    public String submitForm() {
        final FacesMessage.Severity sev = FacesContext.getCurrentInstance().getMaximumSeverity();
        final boolean hasErrors = sev != null && FacesMessage.SEVERITY_ERROR.compareTo(sev) >= 0;

        PrimeFaces.current().ajax().addCallbackParam("isValid", !hasErrors);

        return null;
    }
}
            

public class InventoryProperty implements Serializable {

    private static final long serialVersionUID = 20120521L;

    private String position;
    private Object value;
    private boolean required;

    public InventoryProperty(String position, boolean required) {
        this.position = position;
        this.required = required;
    }

    public InventoryProperty(String position, Object value, boolean required) {
        this.position = position;
        this.value = value;
        this.required = required;
    }

    public String getPosition() {
        return position;
    }

    public void setPosition(String position) {
        this.position = position;
    }

    public Object getValue() {
        return value;
    }

    public Object getFormattedValue() {
        if (value instanceof Date) {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("d MMM yyyy");

            return simpleDateFormat.format(value);
        }

        return value;
    }

    public void setValue(Object value) {
        this.value = value;
    }

    public boolean isRequired() {
        return required;
    }

    public void setRequired(boolean required) {
        this.required = required;
    }
}