com.fasterxml.jackson.databind.deser.std

Class EnumMapDeserializer

    • Field Detail

      • _mapType

        protected final JavaType _mapType
      • _enumClass

        protected final Class<?> _enumClass
      • _valueTypeDeserializer

        protected final TypeDeserializer _valueTypeDeserializer
        If value instances have polymorphic type information, this is the type deserializer that can handle it
    • Method Detail

      • createContextual

        public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
                                           BeanProperty property)
                                             throws JsonMappingException
        Method called to finalize setup of this deserializer, when it is known for which property deserializer is needed for.
        Specified by:
        createContextual in interface ContextualDeserializer
        Parameters:
        ctxt - Deserialization context to access configuration, additional deserializers that may be needed by this deserializer
        property - Method, field or constructor parameter that represents the property (and is used to assign deserialized value). Should be available; but there may be cases where caller can not provide it and null is passed instead (in which case impls usually pass 'this' deserializer as is)
        Returns:
        Deserializer to use for deserializing values of specified property; may be this instance or a new instance.
        Throws:
        JsonMappingException
      • isCachable

        public boolean isCachable()
        Because of costs associated with constructing Enum resolvers, let's cache instances by default.
        Overrides:
        isCachable in class JsonDeserializer<EnumMap<?,?>>
      • deserialize

        public EnumMap<?,?> deserialize(JsonParser jp,
                               DeserializationContext ctxt)
                                 throws IOException,
                                        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<EnumMap<?,?>>
        Parameters:
        jp - Parsed used for reading JSON content
        ctxt - Context that can be used to access information about this deserialization activity.
        Returns:
        Deserialized value
        Throws:
        IOException
        JsonProcessingException

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