| Package | Description | 
|---|---|
| com.fasterxml.jackson.databind.jsonFormatVisitors | Classes used for exposing logical structure of POJOs as Jackson
 sees it, and exposed via
  ObjectMapper.acceptJsonFormatVisitor(Class, JsonFormatVisitorWrapper)andObjectMapper.acceptJsonFormatVisitor(com.fasterxml.jackson.databind.JavaType, JsonFormatVisitorWrapper)methods. | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | JsonNullFormatVisitor.BaseDefault "empty" implementation, useful as the base to start on;
 especially as it is guaranteed to implement all the method
 of the interface, even if new methods are getting added. | 
| Modifier and Type | Method and Description | 
|---|---|
| JsonNullFormatVisitor | JsonFormatVisitorWrapper. expectNullFormat(JavaType type) | 
| JsonNullFormatVisitor | JsonFormatVisitorWrapper.Base. expectNullFormat(JavaType type) | 
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