有谁能解释为什么a4j:poll不能重新使用rich:dataTable?

This is my xhtml page:

这是我的xhtml页面:

<a:region>
    <h:form>
        <a:poll id="poll" interval="#{pollBean.pollInterval}"
            enabled="#{pollBean.pollEnabled}"
            timeout="#{pollBean.timeout}" reRender="poll,messagesList" />
    </h:form>
</a:region>
<h:form>
    <rich:dataTable id="messagesList" value="#{pollBean.messages}" var="message">
        <h:outputText value="#{message.content}" />
    </rich:dataTable>            
</h:form>

The rich:dataTable component does not rerendered after polling finished. After I use ui:repeat instead, it works fine. So can anyone explain this for me? Thanks.

rich:dataTable组件在轮询结束后不会重新运行。在我使用ui之后:重复，它可以正常工作。有人能给我解释一下吗?谢谢。

My application is built on Seam 2.2.1.CR2 and richfaces 3.3.3 and deployed on JBoss 6.0.0.

我的应用程序构建在Seam 2.2.1上。CR2和richfaces 3.3.3并部署在JBoss 6.0.0上。

Here is my simple PollBean.java:

下面是我简单的PollBean.java:

@Name("pollBean")
@Scope(ScopeType.SESSION)
@Restrict("#{identity.loggedIn}")
public class PollBean implements Serializable {

    @In
    private EntityManager entityManager;

    private boolean pollEnabled = true;

    private int pollInterval = 3000;

    private int timeout = 3000;

    /**
     * Default constructor.
     */
    public PollBean() {
    }

    // getters and setters omitted

    /**
     * @return Returns a list of messages.
     */
    public List<Message> getMessages() {
        @SuppressWarnings("unchecked")
        List<Message> messages = this.entityManager.createQuery(
            "select message from Message message").getResultList();
        return messages;
    }
}

1 个解决方案

#1

Kevin,

凯文,

Tested locally and code seems to be working fine so I suggest print all pollBean properties and debug it.

在本地测试和代码似乎运行良好，所以我建议打印所有的pollBean属性并调试它。