Constructor Detail

• JsonNodeDeserializer

  protected JsonNodeDeserializer()

Method Detail

• getDeserializer

  public static JsonDeserializer<? extends JsonNode> getDeserializer(Class<?> nodeClass)

  Factory method for accessing deserializer for specific node type

• getNullValue

  public JsonNode getNullValue(DeserializationContext ctxt)

  Description copied from class: JsonDeserializer
  Method that can be called to determine value to be used for representing null values (values deserialized when JSON token is JsonToken.VALUE_NULL). Usually this is simply Java null, but for some types (especially primitives) it may be necessary to use non-null values.

  Since version 2.6 (in which the context argument was added), call is expected to be made each and every time a null token needs to be handled.

  Default implementation simply returns null.

  Overrides:

  getNullValue in class JsonDeserializer<JsonNode>

• getNullValue

  @Deprecated
  public JsonNode getNullValue()

  Deprecated. 

  Overrides:

  getNullValue in class JsonDeserializer<JsonNode>

• deserialize

  public JsonNode deserialize(JsonParser p,
                     DeserializationContext ctxt)
                       throws IOException

  Implementation that will produce types of any JSON nodes; not just one deserializer is registered to handle (in case of more specialized handler). Overridden by typed sub-classes for more thorough checking

  Specified by:

  deserialize in class JsonDeserializer<JsonNode>

  Parameters:

  p - Parsed used for reading JSON content

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

  Returns:

  Deserialized value

  Throws:

  IOException

• deserializeWithType

  public Object deserializeWithType(JsonParser p,
                           DeserializationContext ctxt,
                           TypeDeserializer typeDeserializer)
                             throws IOException

  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<T extends JsonNode>

  typeDeserializer - Deserializer to use for handling type information

  Throws:

  IOException

• isCachable

  public boolean isCachable()

  Description copied from class: JsonDeserializer
  Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).

  Note that cached instances are still resolved on per-property basis, if instance implements ResolvableDeserializer: cached instance is just as the base. This means that in most cases it is safe to cache instances; however, it only makes sense to cache instances if instantiation is expensive, or if instances are heavy-weight.

  Default implementation returns false, to indicate that no caching is done.

  Overrides:

  isCachable in class JsonDeserializer<T extends JsonNode>

• _reportProblem

  protected void _reportProblem(JsonParser p,
                    String msg)
                         throws JsonMappingException

  Throws:

  JsonMappingException

• _handleDuplicateField

  protected void _handleDuplicateField(JsonParser p,
                           DeserializationContext ctxt,
                           JsonNodeFactory nodeFactory,
                           String fieldName,
                           ObjectNode objectNode,
                           JsonNode oldValue,
                           JsonNode newValue)
                                throws JsonProcessingException

  Method called when there is a duplicate value for a field. By default we don't care, and the last value is used. Can be overridden to provide alternate handling, such as throwing an exception, or choosing different strategy for combining values or choosing which one to keep.

  Parameters:

  fieldName - Name of the field for which duplicate value was found

  objectNode - Object node that contains values

  oldValue - Value that existed for the object node before newValue was added

  newValue - Newly added value just added to the object node

  Throws:

  JsonProcessingException

• deserializeObject

  protected final ObjectNode deserializeObject(JsonParser p,
                             DeserializationContext ctxt,
                             JsonNodeFactory nodeFactory)
                                        throws IOException

  Throws:

  IOException

• deserializeArray

  protected final ArrayNode deserializeArray(JsonParser p,
                           DeserializationContext ctxt,
                           JsonNodeFactory nodeFactory)
                                      throws IOException

  Throws:

  IOException

• deserializeAny

  protected final JsonNode deserializeAny(JsonParser p,
                        DeserializationContext ctxt,
                        JsonNodeFactory nodeFactory)
                                   throws IOException

  Throws:

  IOException

• _fromInt

  protected final JsonNode _fromInt(JsonParser p,
                  DeserializationContext ctxt,
                  JsonNodeFactory nodeFactory)
                             throws IOException

  Throws:

  IOException

• _fromFloat

  protected final JsonNode _fromFloat(JsonParser p,
                    DeserializationContext ctxt,
                    JsonNodeFactory nodeFactory)
                               throws IOException

  Throws:

  IOException

• _fromEmbedded

  protected final JsonNode _fromEmbedded(JsonParser p,
                       DeserializationContext ctxt,
                       JsonNodeFactory nodeFactory)
                                  throws IOException

  Throws:

  IOException