Alloy Showcase - Liferay Faces

FacesContextHelperUtil

alloy:commandLink

CommandLink is a UICommand component that renders an <a> element. Since it extends HtmlCommandLink, it supports all the features of h:commandLink. 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"

Immediate Usage

When the immediate attribute is true, the action and actionListener callbacks execute during the APPLY_REQUEST_VALUES phase of the JSF lifecycle, rather than the normal INVOKE_APPLICATION phase.

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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">
    <!-- Example 1: ActionListener execution when immediate is true -->
    <alloy:form>
        <alloy:messages globalOnly="true" styleClass="feedback" />
        <alloy:commandLink actionListener="#{commandBackingBean.actionListener}" immediate="true" render="@form"
            value="#{i18n['submit']}" />
    </alloy:form>
    <!-- Example 2: ActionListener execution when immediate is false (the default) -->
    <alloy:form>
        <alloy:messages globalOnly="true" styleClass="feedback" />
        <alloy:commandLink actionListener="#{commandBackingBean.actionListener}" render="@form"
            value="#{i18n['submit']}" />
    </alloy:form>
</ui:composition>
 
 
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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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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

Nod: liferay-75cdbc7df5-zpxx7:8080: