Controller Class: Search functionality.

Question

Hello,
Here is a snapshot of the Controller class what NetBeans have created by default which interacts with the entity class. I need to add a search functionality to this bean which a JSF search form can utilize. Can anyone help me out to add without breaking it's structure.
public class ProductController {
    private Product product = null;
    private List<Product> products = null;
    @Resource
    private UserTransaction utx = null;
    @PersistenceUnit(unitName = "ExApp")
    private EntityManagerFactory emf = null;
    public EntityManager getEntityManager() {
        return emf.createEntityManager();
    public int batchSize = 15;
    private int firstItem = 0;
    private int itemCount = -1;
    public SelectItem[] getProductsAvailableSelectMany() {
        return getProductsAvailable(false);
    public SelectItem[] getProductsAvailableSelectOne() {
        return getProductsAvailable(true);
    private SelectItem[] getProductsAvailable(boolean one) {
        List<Product> allProducts = getProducts(true);
        int size = one ? allProducts.size() + 1 : allProducts.size();
        SelectItem[] items = new SelectItem[size];
        int i = 0;
        if (one) {
            items[0] = new SelectItem("", "---");
            i++;
        for (Product x : allProducts) {
            items[i++] = new SelectItem(x, x.toString());
        return items;
    public Product getProduct() {
        if (product == null) {
            product = getProductFromRequest();
        if (product == null) {
            product = new Product();
        return product;
    public String listSetup() {
        reset(true);
        return "product_list";
    public String createSetup() {
        reset(false);
        product = new Product();
        return "product_create";
    public String searchSetup() {
        reset(false);
        product = new Product();
        return "product_search";
    public String create() {
        EntityManager em = getEntityManager();
        try {
            utx.begin();
            em.persist(product);
            utx.commit();
            addSuccessMessage("Product was successfully created.");
        } catch (Exception ex) {
            try {
                if (findProduct(product.getId()) != null) {
                    addErrorMessage("Product " + product + " already exists.");
                } else {
                    ensureAddErrorMessage(ex, "A persistence error occurred.");
                utx.rollback();
            } catch (Exception e) {
                ensureAddErrorMessage(e, "An error occurred attempting to roll back the transaction.");
            return null;
        } finally {
            em.close();
        return listSetup();
    public String detailSetup() {
        return scalarSetup("product_detail");
    public String editSetup() {
        return scalarSetup("product_edit");
    private String scalarSetup(String destination) {
        reset(false);
        product = getProductFromRequest();
        if (product == null) {
            String requestProductString = getRequestParameter("jsfcrud.currentProduct");
            addErrorMessage("The product with id " + requestProductString + " no longer exists.");
            String relatedControllerOutcome = relatedControllerOutcome();
            if (relatedControllerOutcome != null) {
                return relatedControllerOutcome;
            return listSetup();
        return destination;
  private Product getProductFromRequest() {
        String theId = getRequestParameter("jsfcrud.currentProduct");
        return (Product) new ProductConverter().getAsObject(FacesContext.getCurrentInstance(), null, theId);
    private String getRequestParameter(String key) {
        return FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get(key);
    public List<Product> getProducts() {
        if (products == null) {
            products = getProducts(false);
        return products;
    public List<Product> getProducts(boolean all) {
        EntityManager em = getEntityManager();
        try {
            Query q = em.createQuery("select object(o) from Product as o");
            if (!all) {
                q.setMaxResults(batchSize);
                q.setFirstResult(getFirstItem());
            return q.getResultList();
        } finally {
            em.close();
    private void ensureAddErrorMessage(Exception ex, String defaultMsg) {
        String msg = ex.getLocalizedMessage();
        if (msg != null && msg.length() > 0) {
            addErrorMessage(msg);
        } else {
            addErrorMessage(defaultMsg);
    public static void addErrorMessage(String msg) {
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, msg);
        FacesContext.getCurrentInstance().addMessage(null, facesMsg);
    public static void addSuccessMessage(String msg) {
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, msg, msg);
        FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg);
    public Product findProduct(Integer id) {
        EntityManager em = getEntityManager();
        try {
            Product o = (Product) em.find(Product.class, id);
            return o;
        } finally {
            em.close();
    public int getItemCount() {
        if (itemCount == -1) {
            EntityManager em = getEntityManager();
            try {
                itemCount = ((Long) em.createQuery("select count(o) from Product as o").getSingleResult()).intValue();
            } finally {
                em.close();
        return itemCount;
    public int getFirstItem() {
        getItemCount();
        if (firstItem >= itemCount) {
            if (itemCount == 0) {
                firstItem = 0;
            } else {
                int zeroBasedItemCount = itemCount - 1;
                double pageDouble = zeroBasedItemCount / batchSize;
                int page = (int) Math.floor(pageDouble);
                firstItem = page * batchSize;
        return firstItem;
    public int getLastItem() {
        getFirstItem();
        return firstItem + batchSize > itemCount ? itemCount : firstItem + batchSize;
    public int getBatchSize() {
        return batchSize;
    public String next() {
        reset(false);
        getFirstItem();
        if (firstItem + batchSize < itemCount) {
            firstItem += batchSize;
        return "product_list";
    public String prev() {
        reset(false);
        getFirstItem();
        firstItem -= batchSize;
        if (firstItem < 0) {
            firstItem = 0;
        return "product_list";
    private String relatedControllerOutcome() {
        String relatedControllerString = getRequestParameter("jsfcrud.relatedController");
        String relatedControllerTypeString = getRequestParameter("jsfcrud.relatedControllerType");
        if (relatedControllerString != null && relatedControllerTypeString != null) {
            FacesContext context = FacesContext.getCurrentInstance();
            Object relatedController = context.getApplication().getELResolver().getValue(context.getELContext(), null, relatedControllerString);
            try {
                Class<?> relatedControllerType = Class.forName(relatedControllerTypeString);
                Method detailSetupMethod = relatedControllerType.getMethod("detailSetup");
                return (String) detailSetupMethod.invoke(relatedController);
            } catch (ClassNotFoundException e) {
                throw new FacesException(e);
            } catch (NoSuchMethodException e) {
                throw new FacesException(e);
            } catch (IllegalAccessException e) {
                throw new FacesException(e);
            } catch (InvocationTargetException e) {
                throw new FacesException(e);
        return null;
    private void reset(boolean resetFirstItem) {
        product = null;
        products = null;
        itemCount = -1;
        if (resetFirstItem) {
            firstItem = 0;
    private Map<Object, String> asString = null;
    public Map<Object, String> getAsString() {
        if (asString == null) {
            asString = new HashMap<Object, String>() {
                @Override
                public String get(Object key) {
                    if (key instanceof Object[]) {
                        Object[] keyAsArray = (Object[]) key;
                        if (keyAsArray.length == 0) {
                            return "(No Items)";
                        StringBuffer sb = new StringBuffer();
                        for (int i = 0; i < keyAsArray.length; i++) {
                            if (i > 0) {
                                sb.append("<br />");
                            sb.append(keyAsArray);
return sb.toString();
return new ProductConverter().getAsString(FacesContext.getCurrentInstance(), null, (Product) key);
return asString;
Thank you.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

Can you tell us what "not working" means? Can you give us some more detail to try and narrow down the problem? Also you say the search works on your local machine. Have you tried running the help from the generated / published location yourself?