Here is an extract of the code:
home.xhtml shows the list of items
<rich:dataTable id="items" value="#{items}" var="_item" >
| <rich:column>
| <s:link action="#{itemFinder.selectItem}" value="#{_item.id}"/>
| </rich:column>
| <rich:column>
| <h:outputText value="#{_item.title}" />
| </rich:column>
| <rich:column>
| <h:outputText value="#{_item.date}" >
| <f:convertDateTime pattern="dd.MM.yyyy" />
| </h:outputText>
| </rich:column>
| ....
| </rich:dataTable>
ItemFinderAction manages the data model and the selected item:
@Stateful
| @Name("itemFinder")
| @Scope(ScopeType.SESSION)
| public class ItemFinderAction implements ItemFinder {
|
| @PersistenceContext
| EntityManager em;
|
| @DataModel("items")
| List<Item> items;
|
| @DataModelSelection("items")
| @Out(required=false)
| Item item;
|
| @Factory("items")
| public void refresh() {
| items = em.createQuery("from Item i order by i.date
asc").getResultList();
| }
|
| @Begin
| public String selectItem() {
| return "view_item";
| }
|
| @Remove @Destroy
| public void destroy() {
| }
| }
Upon item selection, the item is viewed in viewitem.xhtml:
<h:form id="viewItem">
| <h:panelGrid columns="2">
| <h:outputText value="Title"/>
| <h:outputText value="#{item.title}"/>
| <h:outputText value="Date"/>
| <h:outputText value="#{item.date}"/>
| ...
| </h:panelGrid>
| ...
| <s:link action="#{itemEditor.beginUpdate}"value="Update" />
| ....
| </h:form>
|
ItemEditorAction manages the creation and update of items:
@Stateful
| @Name("itemEditor")
| public class ItemEditorAction implements ItemEditor {
|
| @In(required=false)
| User user;
|
| @In(required=false) @Out(required=false)
| Item item;
|
| @PersistenceContext
| EntityManager em;
|
| @Begin
| public String beginRegister() {
| item = new Item();
| item.setDate(new Date());
| item.setNew(true);
| return "edit_item";
| }
|
| public String endRegister() {
| em.persist(item);
| refreshItems();
| return "success";
| }
|
| public String beginUpdate() {
| item.setNew(false);
| return "edit_item";
| }
|
| public String endUpdate() {
| em.merge(item);
| refreshItems();
| return "success";
| }
|
| @Remove @Destroy
| public void destroy() {
| }
|
| private void refreshItems() {
| Events.instance().raiseEvent("loadItems");
| }
| }
loadItems is defined in compontents.xml as
<event type="loadItems">
| <action expression="#{itemFinder.refresh}"/>
| </event>
Creation and update is done through the following xhtml page:
<h:form id="register">
| <rich:panel>
| <f:facet name="header">
| <h:panelGroup>
| <h:outputText value="New item"
rendered="#{item.new}"/>
| <h:outputText value="Item #{item.id}"
rendered="#{!item.new}"/>
| </h:panelGroup>
| </f:facet>
| <h:panelGrid columns="2">
| <h:outputText value="Title" />
| <h:inputText value="#{item.title}" size="100"
maxlength="100"/>
| ...
| </h:panelGrid>
| <h:commandButton action="#{itemEditor.endRegister}"
value="Save" rendered="#{item.new}"/>
| <h:commandButton action="#{itemEditor.endUpdate}" value="Save"
rendered="#{!item.new}" />
| <s:button action="/home.xhtml" value="Cancel"
rendered="#{item.new}" propagation="end" />
| <s:button action="/viewitem.xhtml" value="Cancel"
rendered="#{!item.new}" />
| </rich:panel>
| </h:form>
|
Item is defined as
@Entity
| @Name("item")
| @Table(name="ITEMS")
| public class Item implements Serializable {
| private static final long serialVersionUID = 1L;
| private long id = 0L;
| private String title;
| private Date date;
| private boolean new;
| //... setters and getters
| @Transient boolean isNew() {
| return new;
| }
| }
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073973#4073973
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