是不是只能用Wrapper包装一下，不该用继承？

public interface DataMessage {
     Map<String, String> getData();
}

public class JsonSerializationSchema<T> implements SerializationSchema<T> {
@Override
    public byte[] serialize(T element) {
        try {
            return mapper.writeValueAsBytes(element);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(
                    String.format("Could not serialize value '%s'.", element), e);
        }
    }
}

public class DataMessageJsonSerializationSchema extends JsonSerializationSchema<DataMessage> {

    @Override
    public byte[] serialize(DataMessage element) {
       return super.serialize(element.getData()) ///?? 这里想使用父类的方法，应该怎么写呢？
    }


}
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FROM 123.123.40.*