Field Detail

• _enumsByIndex

  protected Object[] _enumsByIndex

• _lookupByName

  protected final CompactStringObjectMap _lookupByName

  Since:

  2.7.3

• _lookupByToString

  protected CompactStringObjectMap _lookupByToString

  Alternatively, we may need a different lookup object if "use toString" is defined.

  Since:

  2.7.3

Constructor Detail

• EnumDeserializer

  public EnumDeserializer(EnumResolver byNameResolver)

Method Detail

• deserializerForCreator

  @Deprecated
  public static JsonDeserializer<?> deserializerForCreator(DeserializationConfig config,
                                                      Class<?> enumClass,
                                                      AnnotatedMethod factory)

  Deprecated. Since 2.8

• deserializerForCreator

  public static JsonDeserializer<?> deserializerForCreator(DeserializationConfig config,
                                           Class<?> enumClass,
                                           AnnotatedMethod factory,
                                           ValueInstantiator valueInstantiator,
                                           SettableBeanProperty[] creatorProps)

  Factory method used when Enum instances are to be deserialized using a creator (static factory method)

  Returns:

  Deserializer based on given factory method

  Since:

  2.8

• deserializerForNoArgsCreator

  public static JsonDeserializer<?> deserializerForNoArgsCreator(DeserializationConfig config,
                                                 Class<?> enumClass,
                                                 AnnotatedMethod factory)

  Factory method used when Enum instances are to be deserialized using a zero-/no-args factory method

  Returns:

  Deserializer based on given no-args factory method

  Since:

  2.8

• isCachable

  public boolean isCachable()

  Because of costs associated with constructing Enum resolvers, let's cache instances by default.

  Overrides:

  isCachable in class JsonDeserializer<Object>

• deserialize

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

  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 or a FIELD_NAME.

  The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following.

        {
            "@class": "class name",
            ...
        }
    

  Jackson consumes the two tokens (the @class field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with:

         if (jp.getCurrentToken() == JsonToken.START_OBJECT) {
           jp.nextToken();
         }
    

  This results in the stream pointing to the field name, so that the two conditions align.

  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:

  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

• _deserializeOther

  protected Object _deserializeOther(JsonParser p,
                         DeserializationContext ctxt)
                              throws IOException

  Throws:

  IOException

• _enumClass

  protected Class<?> _enumClass()

• _getToStringLookup

  protected CompactStringObjectMap _getToStringLookup(DeserializationContext ctxt)