此内容没有您所选择的语言版本。

4.31. Extracting a List Object with MVEL


To use MVEL to extract a List object from an existing bean in the bean context, see the example below. (The Order object in this example has a method that returns a list which we must use to add order lines.)
<smooks-resource-list
   xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd"
   xmlns:jb="http://www.milyn.org/xsd/smooks/javabean-1.4.xsd">
 
    <jb:bean
        beanId="order"
        class="some.package.Order"
        createOnElement="order"
    >
        <!-- ... bindings -->
    </jb:bean>
 
    <!-- 
           The factory attribute uses MVEL to access the order 
           object in the bean context and calls its getOrderLines() 
           method to get the List. This list is then added to the bean 
           context under the beanId 'orderLines' 
    -->
    <jb:bean
        BeanId="orderLines"
        class="java.util.List"
        factory="mvel:order.getOrderLines()" 
        createOnElement="order"
    >
        <jb:wiring BeanIdRef="orderLine" />
    </jb:bean>
 
    <jb:bean
        BeanId="orderLine"
        class="java.util.List"
        createOnElement="order-line"
    >
        <!-- ... bindings -->
    </jb:bean>
 
</smooks-resource-list>
Copy to Clipboard Toggle word wrap
Note
Array objects are not supported. If a factory returns an array then Smooks will throw an exception.
返回顶部
Red Hat logoGithubredditYoutubeTwitter

学习

尝试、购买和销售

社区

关于红帽文档

通过我们的产品和服务,以及可以信赖的内容,帮助红帽用户创新并实现他们的目标。 了解我们当前的更新.

让开源更具包容性

红帽致力于替换我们的代码、文档和 Web 属性中存在问题的语言。欲了解更多详情,请参阅红帽博客.

關於紅帽

我们提供强化的解决方案,使企业能够更轻松地跨平台和环境(从核心数据中心到网络边缘)工作。

Theme

© 2025 Red Hat