如何在Dozer中映射集合 [英] How to map collections in Dozer

问题描述

我想做类似的事情：

ArrayList<CustomObject> objects = new ArrayList<CustomObject>();
...
DozerBeanMapper MAPPER = new DozerBeanMapper();
...
ArrayList<NewObject> newObjects = MAPPER.map(objects, ...); 

假设：

<mapping>
  <class-a>com.me.CustomObject</class-a>
  <class-b>com.me.NewObject</class-b>   
    <field>  
      <a>id</a>  
      <b>id2</b>  
    </field>  
</mapping>

我试过：

ArrayList<NewObject> holder = new ArrayList<NewObject>();
MAPPER.map(objects, holder);

但持有者对象为空。我还玩了改变第二个参数而没有任何运气...

but the holder object is empty. I also played with changing the second argument without any luck...

推荐答案

引用：

嵌套集合会自动处理
，但你是正确的
，顶级集合需要重复
。目前还有这是
更优雅的方式来处理这个问题。

"Nested collections are handled automatically, but you are correct that top level collections need to be iterated over. Currently there isn't a more elegant way to handle this."

有人在你的代码库中没有循环结构的情况下找到了一种方法，但我觉得它更容易（更易读/可维护）把它放在你的代码中。希望他们能早点加入这种能力。

Someone has figured a way to do it without a looping construct in your code base, but I think it's just easier (and more readable/maintainable) to put it in your code. Hopefully they'll add this ability sooner than later.

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