Primefaces schedule and selectEvent



我现在使用5.0,但在4.0是做同样的。用3.5就可以了

我有一个ScheduleEvent实现,我存储在postgreSQL表与jpa。我使用延迟数据模型,因此我可以持久化新事件,并将它们加载回来。事件和标题出现在日程表中。

ScheduleManager是一个会话范围的bean,我处理ajax事件,如onEventMove, onEventResize,和onEventSelect。最后一个事件处理程序getObject方法返回null,所以我不能编辑事件。

我的事件实现如下:

@Entity
@Table(name = "basescheduleevent")
@NamedQuery(name = "BaseScheduleEvent.findAll", query = "SELECT l FROM BaseScheduleEvent l")
public class BaseScheduleEvent implements ScheduleEvent, Serializable {
  private static final long serialVersionUID = 6213082779383114637L;
  private String id;
  private String title;
  private Object data;
  private Date startDate;
  private Date endDate;
  private String description;
   @Id
   @GeneratedValue(strategy = GenerationType.IDENTITY)
   @Column(unique = true, nullable = false)
   public String getId() {
      return this.id;
   }
   public void setId(String id) {
      this.id = id;
   }
   @Lob
   @Override
   public Object getData() {
      return this.data;
   }
   public void setData(Object data) {
      this.data = data;
   }
...

和处理程序方法如下:

   public void onEventSelect(SelectEvent selectEvent) {
      ScheduleEvent event = (ScheduleEvent) selectEvent.getObject();
      if (event != null) {
         EventHistory eventHistory = (EventHistory) event.getData();
         Subject subject = eventHistory.getSubject();
      }
   }

下面是xhtml时间表:

<h:form id="ScheduleForm">
     <p:schedule style="width:100%;height:100%" view="month" id="schedule" widgetVar="scheduleWidget"
        timeZone="Europe/Budapest" widgetVar="scheduleWidget" locale="hu"
        value="#{scheduleManager.eventModel}"
        binding="#{scheduleManager.schedule}">
        <p:ajax event="dateSelect"
           listener="#{scheduleManager.onDateSelect}" update=":timerForm"
           oncomplete="PF('timerDialogWidget').show();" />
        <p:ajax event="eventSelect"
           listener="#{scheduleManager.onEventSelect}" update=":timerForm"
           oncomplete="PF('timerDialogWidget').show();" />
        <p:ajax event="eventMove" listener="#{scheduleManager.onEventMove}" />
        <p:ajax event="eventResize"
           listener="#{scheduleManager.onEventResize}" />
     </p:schedule>
</h:form>

所以我在谷歌上搜索解决方案,但我找不到解决方案。我发现总是旧的primeface事件处理程序和解决方案。

移动和调整大小在事件处理程序之前有空指针异常。

请让我知道解决办法。

我把一个干净的方法调用加载方法到SessionScoped bean:

@Named
@SessionScoped
public class ScheduleManager implements Serializable {
   private static final long serialVersionUID = 620934289508314544L;
   private BaseScheduleEvent currentEvent;
   private ScheduleModel lazyEventModel;
   @Inject
   private UserService userService;
   @Inject
   private ScheduleService scheduleService;
   public ScheduleModel getEventModel() {
      lazyEventModel = new LazyScheduleModel() {
         private static final long serialVersionUID = -7030798462691388329L;
         public void loadEvents(Date start, Date end) {
            final TimeZone timeZone = TimeZone.getTimeZone("Europe/Budapest");
            List<ScheduleEvent> eventList = scheduleService.loadEvents(
                  start, end, timeZone);
            clear();
            for (ScheduleEvent event : eventList) {
               addEvent(event);
            }
         }
      };
      return lazyEventModel;
   }

在Schedule.java中,我发现了一些可能有助于找到问题的东西。缺少id。

    else if(eventName.equals("eventSelect")) {
        String selectedEventId = params.get(clientId + "_selectedEventId");
    ScheduleEvent selectedEvent = this.getValue().getEvent(selectedEventId);
        wrapperEvent = new SelectEvent(this, behaviorEvent.getBehavior(), selectedEvent);

this.getValue(). getevent () give back null (getValue event)size = 0,这就是为什么selectedEvent为null)。但是在持久化对象之后运行,并且事件具有id,我在数据库中确认。事件加载回调度器,我在视图中看到事件。当我加载回事件时,每个事件都有id值。

在DefaultScheduleModel at public ScheduleEvent getEvent(String id)中获取id参数"e3fdce6b-8f4b-4b41-b6f4-19c0a9496e63"值和(ArrayList)事件。size = 0 for循环(ScheduleEvent事件:事件)但是每次当我在SessionScoped bean方法中检查id时,id都是空的。

解决方案要简单得多。只需添加一个null检查。

 public ScheduleModel getEventModel() {
  if (lazyEventModel == null) {
     lazyEventModel = new LazyScheduleModel() {

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