com.fasterxml.jackson.databind.deser.std
Class UntypedObjectDeserializer

java.lang.Object
  com.fasterxml.jackson.databind.JsonDeserializer<T>
      com.fasterxml.jackson.databind.deser.std.StdDeserializer<Object>
          com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer

public class UntypedObjectDeserializer
extends StdDeserializer<Object>

Deserializer implementation that is used if it is necessary to bind content of "unknown" type; something declared as basic Object (either explicitly, or due to type erasure). If so, "natural" mapping is used to convert JSON values to their natural Java object matches: JSON arrays to Java Lists (or, if configured, Object[]), JSON objects to Maps, numbers to Numbers, booleans to Booleans and strings to String (and nulls to nulls).

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

JsonDeserializer.None

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

_valueClass

Constructor Summary

UntypedObjectDeserializer()

Method Summary

Object	deserialize(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt) Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles.
Object	deserializeWithType(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt, TypeDeserializer typeDeserializer) Base implementation that does not assume specific type inclusion mechanism.
protected Object	mapArray(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt) Method called to map a JSON Array into a Java value.
protected Object[]	mapArrayToArray(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt) Method called to map a JSON Array into a Java Object array (Object[]).
protected Object	mapObject(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt) Method called to map a JSON Object into a Java value.

Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

_parseBoolean, _parseBooleanFromNumber, _parseBooleanPrimitive, _parseByte, _parseDate, _parseDouble, _parseDoublePrimitive, _parseFloat, _parseFloatPrimitive, _parseInteger, _parseIntPrimitive, _parseLong, _parseLongPrimitive, _parseShort, _parseShortPrimitive, findDeserializer, getValueClass, getValueType, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer, parseDouble

Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

deserialize, getEmptyValue, getKnownPropertyNames, getNullValue, getObjectIdReader, isCachable, unwrappingDeserializer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UntypedObjectDeserializer

public UntypedObjectDeserializer()

Method Detail

deserialize

public Object deserialize(com.fasterxml.jackson.core.JsonParser jp,
                          DeserializationContext ctxt)
                   throws IOException,
                          com.fasterxml.jackson.core.JsonProcessingException

Description copied from class: JsonDeserializer

Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself.

Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker. Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call).

Note that this method is never called for JSON null literal, and thus deserializers need (and should) not check for it.

Specified by:

deserialize in class JsonDeserializer<Object>

Parameters:

jp - Parsed used for reading JSON content

ctxt - Context that can be used to access information about this deserialization activity.

Returns:

Deserializer value

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

deserializeWithType

public Object deserializeWithType(com.fasterxml.jackson.core.JsonParser jp,
                                  DeserializationContext ctxt,
                                  TypeDeserializer typeDeserializer)
                           throws IOException,
                                  com.fasterxml.jackson.core.JsonProcessingException

Description copied from class: StdDeserializer

Base implementation that does not assume specific type inclusion mechanism. Sub-classes are expected to override this method if they are to handle type information.

Overrides:

deserializeWithType in class StdDeserializer<Object>

typeDeserializer - Deserializer to use for handling type information

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

mapArray

protected Object mapArray(com.fasterxml.jackson.core.JsonParser jp,
                          DeserializationContext ctxt)
                   throws IOException,
                          com.fasterxml.jackson.core.JsonProcessingException

Method called to map a JSON Array into a Java value.

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

mapObject

protected Object mapObject(com.fasterxml.jackson.core.JsonParser jp,
                           DeserializationContext ctxt)
                    throws IOException,
                           com.fasterxml.jackson.core.JsonProcessingException

Method called to map a JSON Object into a Java value.

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

mapArrayToArray

protected Object[] mapArrayToArray(com.fasterxml.jackson.core.JsonParser jp,
                                   DeserializationContext ctxt)
                            throws IOException,
                                   com.fasterxml.jackson.core.JsonProcessingException

Method called to map a JSON Array into a Java Object array (Object[]).

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException