Multiple AJAX Requests for one JSF/Seam change

Question

I'm using this code to update some parts of a page:

<h:selectOneMenu value="#{shopPerformanceManager.shopId}" id="shopSelect">
    <s:selectItems value="#{shopPerformanceManager.employeeShops}" var="selectShop"
        label="#{selectShop.name}" itemValue="#{selectShop.id}" />
    <a:ajax event="change" render=":myElem1 :myElem2 :myElem3" listener="#{shopPerformanceManager.refresh}"
        oncomplete="paintGraphs()" />
</h:selectOneMenu>

Now the problem with this is that it produces one AJAX request and one response, after which myElem1, myElem2 and myElem3 are rendered. What I want instead are three separate requests and responses, so that the elements are processed in parallel and shown ASAP.

Answer 1

您可以在同一selectOneMenu中使用许多a：ajax标签，

<h:selectOneMenu> <s:selectItems /> <a:ajax event="change" listener="#{listener1}" /> <a:ajax event="change" listener="#{listener2}" /> <a:ajax event="change" listener="#{listener3}" /> </h:selectOneMenu>