MultiViewState (MVS) feature enables DataView to maintain its state across pages by setting multiViewState attribute to true. In this demo, use pagination or change layout, then visit another page and then come back to this page. DataView state should remain as you've left it.
<div class="product card">
<h:form id="form">
<p:messages id="messages"/>
<p:commandButton value="Clear multiViewSate" action="#{dataGridView.clearMultiViewState}"
update="@form" styleClass="mb-5" />
<p:dataView var="product" value="#{dataGridView.products}" multiViewState="true" rows="12"
paginator="true"
rowsPerPageTemplate="6,12,16"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
gridIcon="pi pi-th-large" listIcon="pi pi-bars">
<p:dataViewGridItem>
<div class="product-grid-item card border-1">
<div class="product-grid-item-top">
<div>
<i class="pi pi-tag product-category-icon"/>
<span class="product-category">#{product.category}</span>
</div>
<span class="product-badge status-#{product.inventoryStatus.name().toLowerCase()}">#{product.inventoryStatus.text}</span>
</div>
<div class="product-grid-item-content">
<p:graphicImage name="images/product/#{product.image}" library="demo"/>
<div class="product-name">#{product.name}</div>
<div class="product-description">#{product.description}</div>
<p:rating readonly="true" value="#{product.rating}"/>
</div>
<div class="product-grid-item-bottom">
<h:outputText value="#{product.price}" styleClass="product-price">
<f:convertNumber currencySymbol="$" type="currency"/>
</h:outputText>
<p:commandButton type="button"
value="Add To Cart"
icon="pi pi-shopping-cart"
disabled="#{product.inventoryStatus == 'OUTOFSTOCK'}">
</p:commandButton>
</div>
</div>
</p:dataViewGridItem>
<p:dataViewListItem>
<div class="product-list-item">
<p:graphicImage name="demo/images/product/#{product.image}"/>
<div class="product-list-detail">
<div class="product-name">#{product.name}</div>
<div class="product-description">#{product.description}</div>
<p:rating readonly="true" value="#{product.rating}"/>
<i class="pi pi-tag product-category-icon"/><span
class="product-category">#{product.category}</span>
</div>
<div class="product-list-action">
<h:outputText value="#{product.price}" styleClass="product-price">
<f:convertNumber currencySymbol="$" type="currency"/>
</h:outputText>
<p:commandButton type="button"
value="Add To Cart"
icon="pi pi-shopping-cart"
disabled="#{product.inventoryStatus == 'OUTOFSTOCK'}">
</p:commandButton>
<span class="product-badge status-#{product.inventoryStatus.name().toLowerCase()}">#{product.inventoryStatus.text}</span>
</div>
</div>
</p:dataViewListItem>
</p:dataView>
</h:form>
</div>
@Named
@ViewScoped
public class DataGridView implements Serializable {
private List<Product> products;
private Product selectedProduct;
@Inject
private ProductService service;
@PostConstruct
public void init() {
products = service.getProducts(48);
}
public List<Product> getProducts() {
return products;
}
public void setService(ProductService service) {
this.service = service;
}
public Product getSelectedProduct() {
return selectedProduct;
}
public void setSelectedProduct(Product selectedProduct) {
this.selectedProduct = selectedProduct;
}
public void clearMultiViewState() {
FacesContext context = FacesContext.getCurrentInstance();
String viewId = context.getViewRoot().getViewId();
PrimeFaces.current().multiViewState().clearAll(viewId, true, this::showMessage);
}
private void showMessage(String clientId) {
FacesContext.getCurrentInstance()
.addMessage(null,
new FacesMessage(FacesMessage.SEVERITY_INFO, clientId + " multiview state has been cleared out", null));
}
}
public class Product implements Serializable {
private int id;
private String code;
private String name;
private String description;
private String image;
private double price;
private String category;
private int quantity;
private InventoryStatus inventoryStatus;
private int rating;
private List<Order> orders;
public Product() {
}
public Product(int id, String code, String name, String description, String image, double price, String category, int quantity,
InventoryStatus inventoryStatus, int rating) {
this.id = id;
this.code = code;
this.name = name;
this.description = description;
this.image = image;
this.price = price;
this.category = category;
this.quantity = quantity;
this.inventoryStatus = inventoryStatus;
this.rating = rating;
}
@Override
public Product clone() {
return new Product(getId(), getCode(), getName(), getDescription(), getImage(), getPrice(), getCategory(), getQuantity(),
getInventoryStatus(), getRating());
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public InventoryStatus getInventoryStatus() {
return inventoryStatus;
}
public void setInventoryStatus(InventoryStatus inventoryStatus) {
this.inventoryStatus = inventoryStatus;
}
public int getRating() {
return rating;
}
public void setRating(int rating) {
this.rating = rating;
}
public List<Order> getOrders() {
return this.orders;
}
public void setOrders(List<Order> orders) {
this.orders = orders;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((code == null) ? 0 : code.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Product other = (Product) obj;
if (code == null) {
return other.code == null;
}
else {
return code.equals(other.code);
}
}
}
public enum InventoryStatus {
INSTOCK("In Stock"),
OUTOFSTOCK("Out of Stock"),
LOWSTOCK("Low Stock");
private String text;
InventoryStatus(String text) {
this.text = text;
}
public String getText() {
return text;
}
}
public class Order implements java.io.Serializable {
private final int number;
private final String imagePath;
public Order(int number, String imagePath) {
this.number = number;
this.imagePath = imagePath;
}
public int getNumber() {
return number;
}
public String getImagePath() {
return imagePath;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Order order = (Order) o;
return number == order.number;
}
@Override
public int hashCode() {
return number;
}
}
@Named
@ApplicationScoped
public class ProductService {
private List<Product> products;
@PostConstruct
public void init() {
products = new ArrayList<>();
products.add(new Product(1000, "f230fh0g3", "Bamboo Watch", "Product Description", "bamboo-watch.jpg", 65,
"Accessories", 24, InventoryStatus.INSTOCK, 5));
products.add(new Product(1001, "nvklal433", "Black Watch", "Product Description", "black-watch.jpg", 72,
"Accessories", 61, InventoryStatus.INSTOCK, 4));
products.add(new Product(1002, "zz21cz3c1", "Blue Band", "Product Description", "blue-band.jpg", 79,
"Fitness", 2, InventoryStatus.LOWSTOCK, 3));
products.add(new Product(1003, "244wgerg2", "Blue T-Shirt", "Product Description", "blue-t-shirt.jpg", 29,
"Clothing", 25, InventoryStatus.INSTOCK, 5));
products.add(new Product(1004, "h456wer53", "Bracelet", "Product Description", "bracelet.jpg", 15,
"Accessories", 73, InventoryStatus.INSTOCK, 4));
products.add(new Product(1005, "av2231fwg", "Brown Purse", "Product Description", "brown-purse.jpg", 120,
"Accessories", 0, InventoryStatus.OUTOFSTOCK, 4));
products.add(new Product(1006, "bib36pfvm", "Chakra Bracelet", "Product Description", "chakra-bracelet.jpg", 32,
"Accessories", 5, InventoryStatus.LOWSTOCK, 3));
products.add(new Product(1007, "mbvjkgip5", "Galaxy Earrings", "Product Description", "galaxy-earrings.jpg", 34,
"Accessories", 23, InventoryStatus.INSTOCK, 5));
products.add(new Product(1008, "vbb124btr", "Game Controller", "Product Description", "game-controller.jpg", 99,
"Electronics", 2, InventoryStatus.LOWSTOCK, 4));
products.add(new Product(1009, "cm230f032", "Gaming Set", "Product Description", "gaming-set.jpg", 299,
"Electronics", 63, InventoryStatus.INSTOCK, 3));
products.add(new Product(1010, "plb34234v", "Gold Phone Case", "Product Description", "gold-phone-case.jpg", 24,
"Accessories", 0, InventoryStatus.OUTOFSTOCK, 4));
products.add(new Product(1011, "4920nnc2d", "Green Earbuds", "Product Description", "green-earbuds.jpg", 89,
"Electronics", 23, InventoryStatus.INSTOCK, 4));
products.add(new Product(1012, "250vm23cc", "Green T-Shirt", "Product Description", "green-t-shirt.jpg", 49,
"Clothing", 74, InventoryStatus.INSTOCK, 5));
products.add(new Product(1013, "fldsmn31b", "Grey T-Shirt", "Product Description", "grey-t-shirt.jpg", 48,
"Clothing", 0, InventoryStatus.OUTOFSTOCK, 3));
products.add(new Product(1014, "waas1x2as", "Headphones", "Product Description", "headphones.jpg", 175,
"Electronics", 8, InventoryStatus.LOWSTOCK, 5));
products.add(new Product(1015, "vb34btbg5", "Light Green T-Shirt", "Product Description", "light-green-t-shirt.jpg", 49,
"Clothing", 34, InventoryStatus.INSTOCK, 4));
products.add(new Product(1016, "k8l6j58jl", "Lime Band", "Product Description", "lime-band.jpg", 79,
"Fitness", 12, InventoryStatus.INSTOCK, 3));
products.add(new Product(1017, "v435nn85n", "Mini Speakers", "Product Description", "mini-speakers.jpg", 85,
"Clothing", 42, InventoryStatus.INSTOCK, 4));
products.add(new Product(1018, "09zx9c0zc", "Painted Phone Case", "Product Description", "painted-phone-case.jpg", 56,
"Accessories", 41, InventoryStatus.INSTOCK, 5));
products.add(new Product(1019, "mnb5mb2m5", "Pink Band", "Product Description", "pink-band.jpg", 79,
"Fitness", 63, InventoryStatus.INSTOCK, 4));
products.add(new Product(1020, "r23fwf2w3", "Pink Purse", "Product Description", "pink-purse.jpg", 110,
"Accessories", 0, InventoryStatus.OUTOFSTOCK, 4));
products.add(new Product(1021, "pxpzczo23", "Purple Band", "Product Description", "purple-band.jpg", 79,
"Fitness", 6, InventoryStatus.LOWSTOCK, 3));
products.add(new Product(1022, "2c42cb5cb", "Purple Gemstone Necklace", "Product Description", "purple-gemstone-necklace.jpg", 45,
"Accessories", 62, InventoryStatus.INSTOCK, 4));
products.add(new Product(1023, "5k43kkk23", "Purple T-Shirt", "Product Description", "purple-t-shirt.jpg", 49,
"Clothing", 2, InventoryStatus.LOWSTOCK, 5));
products.add(new Product(1024, "lm2tny2k4", "Shoes", "Product Description", "shoes.jpg", 64,
"Clothing", 0, InventoryStatus.INSTOCK, 4));
products.add(new Product(1025, "nbm5mv45n", "Sneakers", "Product Description", "sneakers.jpg", 78,
"Clothing", 52, InventoryStatus.INSTOCK, 4));
products.add(new Product(1026, "zx23zc42c", "Teal T-Shirt", "Product Description", "teal-t-shirt.jpg", 49,
"Clothing", 3, InventoryStatus.LOWSTOCK, 3));
products.add(new Product(1027, "acvx872gc", "Yellow Earbuds", "Product Description", "yellow-earbuds.jpg", 89,
"Electronics", 35, InventoryStatus.INSTOCK, 3));
products.add(new Product(1028, "tx125ck42", "Yoga Mat", "Product Description", "yoga-mat.jpg", 20,
"Fitness", 15, InventoryStatus.INSTOCK, 5));
products.add(new Product(1029, "gwuby345v", "Yoga Set", "Product Description", "yoga-set.jpg", 20,
"Fitness", 25, InventoryStatus.INSTOCK, 8));
}
public List<Product> getProducts() {
return new ArrayList<>(products);
}
public List<Product> getProducts(int size) {
if (size > products.size()) {
Random rand = new Random();
List<Product> randomList = new ArrayList<>();
for (int i = 0; i < size; i++) {
int randomIndex = rand.nextInt(products.size());
randomList.add(products.get(randomIndex));
}
return randomList;
}
else {
return new ArrayList<>(products.subList(0, size));
}
}
public List<Product> getClonedProducts(int size) {
List<Product> results = new ArrayList<>();
List<Product> originals = getProducts(size);
for (Product original : originals) {
results.add(original.clone());
}
// make sure to have unique codes
for (Product product : results) {
product.setCode(UUID.randomUUID().toString().replace("-", "").substring(0, 8));
}
return results;
}
}