public abstract class DeserializationProblemHandler extends Object
DeserializationConfig
object owner by
ObjectMapper
) to get calledn when a potentially
recoverable problem is encountered during deserialization
process. Handlers can try to resolve the problem, throw
an exception or do nothing.
Default implementations for all methods implemented minimal "do nothing" functionality, which is roughly equivalent to not having a registered listener at all. This allows for only implemented handler methods one is interested in, without handling other cases.
Constructor and Description |
---|
DeserializationProblemHandler() |
Modifier and Type | Method and Description |
---|---|
boolean |
handleUnknownProperty(DeserializationContext ctxt,
JsonParser jp,
JsonDeserializer<?> deserializer,
Object beanOrClass,
String propertyName)
Method called when a JSON Map ("Object") entry with an unrecognized
name is encountered.
|
public boolean handleUnknownProperty(DeserializationContext ctxt, JsonParser jp, JsonDeserializer<?> deserializer, Object beanOrClass, String propertyName) throws IOException, JsonProcessingException
jp.skipChildren();
Note: version 1.2 added new deserialization feature
(DeserializationConfig.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
).
It will only have effect after handler is called, and only
if handler did not handle the problem.
beanOrClass
- Either bean instance being deserialized (if one
has been instantiated so far); or Class that indicates type that
will be instantiated (if no instantiation done yet: for example
when bean uses non-default constructors)jp
- Parser to use for handling problematic contentIOException
JsonProcessingException
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