使用ajax时如何识别javaserverfaces2.0复合组件?

我有以下JavaServerFaces2.0复合组件。注意我正在使用 逐字

resources/customer/customer.xhtml

<composite:interface>
    <composite:attribute name="id" required="false"/>
    <composite:attribute name="firstName" required="false"/>
    <composite:attribute name="lastName" required="false"/>
    <composite:attribute name="age" required="false"/>
    <composite:attribute name="rendered" required="false"/>
</composite:interface>
<composite:implementation>
    <f:verbatim id="#{cc.attrs.id}" rendered="#{cc.attrs.rendered}">
        <div>
            <div>
                <p>First name</p>
                <h:outputText value="#{cc.attrs.firstName}"/>
            </div>
            <div>
                <p>Last name</p>
                <h:outputText value="#{cc.attrs.lastName}"/>
            </div>
            <div>
                <p>Age</p>
                <h:outputText value="#{cc.attrs.age}"/>
            </div>
        </div>
    </f:verbatim>
</composite:implementation>

为了使用ajax,我已经做了(注意 提供 属性)

<h:form id="search">
<div>
    <h:commandButton value="Search" action="#{customerSearchController.search}">
        <f:ajax execute="@form" render="search:result"/>
    </h:commandButton>
</div>
<customer:customer id="result"
                   rendered="#{customerSearchController.customer != null}"
                   firstName="#{customerSearchController.customer.firstName}"
                   lastName="#{customerSearchController.customer.lastName}"
                   age="#{customerSearchController.customer.age}"/>
</h:form>

我的CustomerSearchController如下所示

private Customer customer;

// getter's and setter's

public void search() {
    customer = new Customer();

    customer.setFirstName("First");
    customer.setLastName("Last");

    customer.setAge(30);
}

CustomerSearchController和Customer都是托管bean。但当我调用ajax请求时,它会抱怨: 搜索:未找到结果

我该怎么解决这个问题???