JSF Showcase
f:ajax
Since JSF 2.0, includes the f:ajax Facelet TagHandler. This ClientBehavior adds AJAX features to any ClientBehaviorHolder that implementsaddClientBehavior
.
General Usage
By default (nolistener
specified), AJAX request is made when the default event (obtained from ClientBehaviorHolder and method getDefaultEventName
) had been thrown.
Source Code
- <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:commandLink actionListener="#{commandBackingBean.actionListener}" value="#{i18n['link']}">
- <f:ajax render="feedback"/>
- </h:commandLink>
- </h:form>
- </ui:composition>
- @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;
- }
- }
Liferay Faces Bridge Implementation 5.0.0 + Showcase Common 3.1.1 + Liferay Faces Util 3.4.1 + Mojarra 2.2.20