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Update README.md with information on XML serialization. Fixes #5 #11

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Merged
cbornet merged 1 commit into from
Aug 9, 2019
Merged

Update README.md with information on XML serialization. Fixes #5 #11

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21 changes: 20 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -41,9 +41,28 @@ public static class Pet {
}

```
Then we can serialize
And we instantiate the mapper either for JSON
```java
import com.fasterxml.jackson.databind.ObjectMapper;

// ...

ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
mapper.registerModule(new JsonNullableModule());
```
or for XML
```java
import com.fasterxml.jackson.dataformat.xml.XmlMapper;

// ...

XmlMapper xmlMapper = new XmlMapper();
xmlMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
xmlMapper.registerModule(new JsonNullableModule());
```
Then we can serialize
```java
assertEquals("{}", mapper.writeValueAsString(new Pet().name(JsonNullable.<String>undefined())));
assertEquals("{\"name\":null}", mapper.writeValueAsString(new Pet().name(JsonNullable.<String>of(null))));
assertEquals("{\"name\":\"Rex\"}", mapper.writeValueAsString(new Pet().name(JsonNullable.of("Rex"))));
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