如何适应aem6吊索模型中的子节点

我正在学习使用AEM6-Sling机型的一个新功能。我已经按照描述的步骤获取了节点的属性

并根据资源进行了改编

UserInfo userInfo = resource.adaptTo(UserInfo.class);

现在我的层次结构是-

+ UserInfo (firstName, lastName, technology)
  |
  + UserAddress (houseNo, locality, city, state)

现在我想获取

UserAddress

的属性

我从文档页面上得到了一些提示，例如-

如果注入的对象与所需的类型不匹配，并且该对象实现了自适应接口，吊索模型将尝试对其进行自适应。这提供了创建丰富对象图的能力。例如：

当资源被改编为

MyModel

时，名为image的子资源将自动改编为

ImageModel

的实例

---

但是我不知道如何在我自己的类中实现它。请帮我解决这个问题。

听起来您需要为

用户地址

单独设置一个类来包装

房屋号

、

城市

、

州

和

地区

属性

+ UserInfo (firstName, lastName, technology)
  |
  + UserAddress (houseNo, locality, city, state)

只需镜像您在吊索模型中概述的结构即可

创建

UserAddress

模型：

@Model(adaptables = Resource.class)
public class UserAddress {

    @Inject
    private String houseNo;

    @Inject
    private String locality;

    @Inject
    private String city;

    @Inject
    private String state;

    //getters
}

然后可以在您的

UserInfo

类中使用此模型：

@Model(adaptables = Resource.class)
public class UserInfo {

    /*
     * This assumes the hierarchy you described is 
     * mirrored in the content structure.
     * The resource you're adapting to UserInfo
     * is expected to have a child resource named
     * userAddress. The @Named annotation should
     * also work here if you need it for some reason.
     */
    @Inject
    @Optional
    private UserAddress userAddress;

    public UserAddress getUserAddress() {
        return this.userAddress;
    }

    //simple properties (Strings and built-in types) omitted for brevity
}

您可以使用默认值和可选字段的附加注释来调整行为，但这是一般的想法

一般来说，吊索模型应该能够处理另一个模型的注入，只要它找到合适的适应性。在本例中，这是另一个Sling模型，但我也使用了基于适配器工厂的遗留类

@Model(adaptables = Resource.class)
public class UserAddress {

    @Inject
    private String houseNo;

    @Inject
    private String locality;

    @Inject
    private String city;

    @Inject
    private String state;

    //getters
}

@Model(adaptables = Resource.class)
public class UserInfo {

    /*
     * This assumes the hierarchy you described is 
     * mirrored in the content structure.
     * The resource you're adapting to UserInfo
     * is expected to have a child resource named
     * userAddress. The @Named annotation should
     * also work here if you need it for some reason.
     */
    @Inject
    @Optional
    private UserAddress userAddress;

    public UserAddress getUserAddress() {
        return this.userAddress;
    }

    //simple properties (Strings and built-in types) omitted for brevity
}