Alloy Showcase - Liferay Faces

FacesContextHelperUtil

alloy:commandButton

CommandButton is a UICommand component that renders a styleable HTML <button> element. The default type is submit. Since it extends HtmlCommandButton, it supports all the features of h:commandButton. The component must be a child of h:form in order to trigger the action or actionListener. In order to provide a Rich Internet Application (RIA) experience for the end-user, the following attributes are set by default:

ajax="true"
execute/process="@all"
render/update="@none"

Value Attribute Usage

Although the component's value attribute is read-only (can't be changed via form submission), it can be used to determine that an item has been selected by the user.

Source Code

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<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:alloy="http://liferay.com/faces/alloy"
    xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
    <alloy:form>
        <ui:repeat value="#{commandModelBean.customers}" var="customer">
            <alloy:commandButton actionListener="#{commandBackingBean.selectionListener}" render="@form"
                value="#{customer}">
                <alloy:icon name="edit" />
            </alloy:commandButton>
            <alloy:outputText value=" #{customer.fullName}" />
            <br />
        </ui:repeat>
        <alloy:outputText id="modelValue" value="#{commandModelBean.selectedCustomer.fullName}" />
    </alloy:form>
</ui:composition>
 
 
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@ManagedBean
@ViewScoped
public class CommandModelBean implements Serializable {
    // serialVersionUID
    private static final long serialVersionUID = 332271404377673109L;
    // Injections
    @ManagedProperty(value = "#{customerService}")
    private CustomerService customerService;
    // Private Data Members
    private boolean ajax;
    private Customer selectedCustomer;
    private List<Customer> customers;
    public List<Customer> getCustomers() {
        return customers;
    }
    public Customer getSelectedCustomer() {
        return selectedCustomer;
    }
    public boolean isAjax() {
        return ajax;
    }
    @PostConstruct
    public void postConstruct() {
        customers = customerService.getCustomers(0, 5);
    }
    public void setAjax(boolean ajax) {
        this.ajax = ajax;
    }
    public void setCustomerService(CustomerService customerService) {
        this.customerService = customerService;
    }
    public void setSelectedCustomer(Customer selectedCustomer) {
        this.selectedCustomer = selectedCustomer;
    }
}
 
 
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@ManagedBean
@RequestScoped
public class CommandBackingBean {
    private static final Logger logger = LoggerFactory.getLogger(CommandBackingBean.class);
    // Injections
    @ManagedProperty(value = "#{commandModelBean}")
    private CommandModelBean commandModelBean;
    public void actionListener(ActionEvent actionEvent) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        PhaseId phaseId = facesContext.getCurrentPhaseId();
        logger.debug("actionListener: phaseId=[{0}]", phaseId.toString());
        String phaseName = phaseId.toString();
        FacesMessage facesMessage = new FacesMessage("The actionListener method was called during the " + phaseName +
                " phase of the JSF lifecycle.");
        facesContext.addMessage(null, facesMessage);
    }
    public void ajaxListener(AjaxBehaviorEvent ajaxBehaviorEvent) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        PhaseId phaseId = facesContext.getCurrentPhaseId();
        logger.debug("ajaxListener: phaseId=[{0}]", phaseId.toString());
        String phaseName = phaseId.toString();
        FacesMessage facesMessage = new FacesMessage("The ajaxListener method was called during the " + phaseName +
                " phase of the JSF lifecycle.");
        facesContext.addMessage(null, facesMessage);
    }
    public void attributeActionListener(ActionEvent actionEvent) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        PhaseId phaseId = facesContext.getCurrentPhaseId();
        logger.debug("actionListener: phaseId=[{0}]", phaseId.toString());
        String value = (String) actionEvent.getComponent().getAttributes().get("attribute");
        String phaseName = phaseId.toString();
        FacesMessage facesMessage = new FacesMessage("The actionListener method was called during the " + phaseName +
                " phase of the JSF lifecycle.The attribute value is " + value);
        facesContext.addMessage(null, facesMessage);
    }
    public void attributesActionListener(ActionEvent actionEvent) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        PhaseId phaseId = facesContext.getCurrentPhaseId();
        logger.debug("actionListener: phaseId=[{0}]", phaseId.toString());
        Map<String, Object> attributes = actionEvent.getComponent().getAttributes();
        String value1 = (String) attributes.get("attribute1");
        String value2 = (String) attributes.get("attribute2");
        String phaseName = phaseId.toString();
        FacesMessage facesMessage = new FacesMessage("The actionListener method was called during the " + phaseName +
                " phase of the JSF lifecycle.The attributes value are " + value1 + " and " + value2);
        facesContext.addMessage(null, facesMessage);
    }
    public void feedbackListener(ActionEvent actionEvent) {
        String value = "";
        List<UIComponent> children = actionEvent.getComponent().getChildren();
        for (UIComponent uiComponent : children) {
            if (uiComponent instanceof UIOutput) {
                value = (String) ((UIOutput) uiComponent).getValue();
            }
        }
        FacesContext facesContext = FacesContext.getCurrentInstance();
        logger.debug("feedbackListener: You selected the '" + value + "' menu item.");
        FacesMessage facesMessage = new FacesMessage("You selected the '" + value + "' menu item.");
        facesContext.addMessage(null, facesMessage);
    }
    public Map<String, Object> getAttributes() {
        Map<String, Object> attributes = new HashMap<String, Object>();
        attributes.put("attribute1", "value1");
        attributes.put("attribute2", "value2");
        return attributes;
    }
    public void parameterActionListener() {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        PhaseId phaseId = facesContext.getCurrentPhaseId();
        logger.debug("actionListener: phaseId=[{0}]", phaseId.toString());
        Map<String, String> requestParameterMap = facesContext.getExternalContext().getRequestParameterMap();
        String value = requestParameterMap.get("parameter");
        String phaseName = phaseId.toString();
        FacesMessage facesMessage = new FacesMessage("The actionListener method was called during the " + phaseName +
                " phase of the JSF lifecycle.The parameter value is " + value);
        facesContext.addMessage(null, facesMessage);
    }
    public void selectionListener(ActionEvent actionEvent) {
        UICommand uiCommand = (UICommand) actionEvent.getComponent();
        Customer customer = (Customer) uiCommand.getValue();
        commandModelBean.setSelectedCustomer(customer);
    }
    public void setCommandModelBean(CommandModelBean commandModelBean) {
        this.commandModelBean = commandModelBean;
    }
}
 
 
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public class Customer implements Serializable {
    // serialVersionUID
    private static final long serialVersionUID = 6155011527137371447L;
    // Private Data Members
    private long customerId;
    private Country country;
    private Date dateOfBirth;
    private String firstName;
    private String lastName;
    public Customer(long customerId, Country country, String firstName, String lastName, Date dateOfBirth) {
        this.customerId = customerId;
        this.country = country;
        this.dateOfBirth = dateOfBirth;
        this.firstName = firstName;
        this.lastName = lastName;
    }
    public Country getCountry() {
        return country;
    }
    public long getCustomerId() {
        return customerId;
    }
    public Date getDateOfBirth() {
        return dateOfBirth;
    }
    public String getFirstName() {
        return firstName;
    }
    public String getFullName() {
        return firstName + " " + lastName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setCountry(Country country) {
        this.country = country;
    }
    public void setCustomerId(long customerId) {
        this.customerId = customerId;
    }
    public void setDateOfBirth(Date dateOfBirth) {
        this.dateOfBirth = dateOfBirth;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
}
 
 
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Liferay Faces Alloy 4.1.1 + Liferay Faces Bridge Implementation 5.0.0 + Showcase Common 4.0.0 + Liferay Faces Util 3.4.1 + Mojarra 2.2.20

Geen: liferay-75cdbc7df5-zpxx7:8080: