Alloy Showcase - Liferay Faces

FacesContextHelperUtil

f:ajax

Since JSF 2.0, includes the f:ajax Facelet TagHandler. This ClientBehavior adds AJAX features to any ClientBehaviorHolder that implements addClientBehavior.

Event Usage

It's possible to specify the events which will throw AJAX invocation. This is possible using event attribute.

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<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://xmlns.jcp.org/jsf/core"
    xmlns:h="http://xmlns.jcp.org/jsf/html" xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
    <h:form>
        <h:messages id="feedback" globalOnly="true" layout="table" />
        <h:outputLabel value="#{i18n['click-here-to-execute-the-click-event-callback']}">
            <f:ajax event="click" listener="#{commandBackingBean.ajaxListener}" render="feedback"/>
        </h:outputLabel>
    </h: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

Codi: liferay-75cdbc7df5-mdsvm:8080: