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I have an object having an attribute of type map, but I want this map to be serialized to a list, containing only the values of this map.

I could do this by other means (for example, by making the map transient, adding a couple of setter/getter returning the values of the map and serializing this list) but I was wondering if there was a way to customize SimpleXml to get this result.

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Like in your other question is a good idea to implement a Converter.

Here are some aspects:

  1. Implement a Converter for the object
    1. Retrieve the attribute map
    2. Iterate over it an write it's content to the OutputNode or write them into a liste and serialize this instead
  2. Set Converter and AnnotationStrategy
  3. Serialize

Please see also:

However, please give us some more informations (like structure of the class and expected output xml).

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3 Comments

I will use your answer to my other question to try to solve my problem. If it is not sufficient, I will come back with further explanation. Thank you.
In fact the problem is that it seems you need to rewrite the full serialization process. You don't have a way to say "I want to serialize this class exactly like the default settings,except for this part". For the complex classes, rewriting a Converter can take some time.
You can set a Converter only for the element you need to serialize while the other parts are serialized as default.

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