Package com.fasterxml.jackson.databind.ser.std

Class StdDelegatingSerializer

    • Constructor Detail

      • StdDelegatingSerializer

        public StdDelegatingSerializer​(Converter<?,​?> converter)

      • StdDelegatingSerializer

        public StdDelegatingSerializer​(java.lang.Class<T> cls,
                               Converter<T,​?> converter)

      • StdDelegatingSerializer

        public StdDelegatingSerializer​(Converter<java.lang.Object,​?> converter,
                               JavaType delegateType,
                               JsonSerializer<?> delegateSerializer)

    • Method Detail

      • resolve

        public void resolve​(SerializerProvider provider)
             throws JsonMappingException
        Description copied from interface: ResolvableSerializer
        Method called after SerializerProvider has registered the serializer, but before it has returned it to the caller. Called object can then resolve its dependencies to other types, including self-references (direct or indirect).

        Note that this method does NOT return serializer, since resolution is not allowed to change actual serializer to use.

        Specified by:
        resolve in interface ResolvableSerializer
        Parameters:
        provider - Provider that has constructed serializer this method is called on.
        Throws:
        JsonMappingException

      • createContextual

        public JsonSerializer<?> createContextual​(SerializerProvider provider,
                                          BeanProperty property)
                                   throws JsonMappingException
        Description copied from interface: ContextualSerializer
        Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.
        Specified by:
        createContextual in interface ContextualSerializer
        Parameters:
        provider - Serializer provider to use for accessing config, other serializers
        property - Method or field that represents the property (and is used to access value to serialize). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' serializer as is)
        Returns:
        Serializer to use for serializing values of specified property; may be this instance or a new instance.
        Throws:
        JsonMappingException

      • getDelegatee

        public JsonSerializer<?> getDelegatee()
        Description copied from class: JsonSerializer
        Accessor that can be used to determine if this serializer uses another serializer for actual serialization, by delegating calls. If so, will return immediate delegate (which itself may delegate to further serializers); otherwise will return null.
        Overrides:
        getDelegatee in class JsonSerializer<java.lang.Object>
        Returns:
        Serializer this serializer delegates calls to, if null; null otherwise.

      • serialize

        public void serialize​(java.lang.Object value,
                      JsonGenerator gen,
                      SerializerProvider provider)
               throws java.io.IOException
        Description copied from class: JsonSerializer
        Method that can be called to ask implementation to serialize values of type this serializer handles.
        Specified by:
        serialize in class StdSerializer<java.lang.Object>
        Parameters:
        value - Value to serialize; can not be null.
        gen - Generator used to output resulting Json content
        provider - Provider that can be used to get serializers for serializing Objects value contains, if any.
        Throws:
        java.io.IOException

      • serializeWithType

        public void serializeWithType​(java.lang.Object value,
                              JsonGenerator gen,
                              SerializerProvider provider,
                              TypeSerializer typeSer)
                       throws java.io.IOException
        Description copied from class: JsonSerializer
        Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

        Default implementation will throw UnsupportedOperationException to indicate that proper type handling needs to be implemented.

        For simple datatypes written as a single scalar value (JSON String, Number, Boolean), implementation would look like: 

          // note: method to call depends on whether this type is serialized as JSON scalar, object or Array!
  typeSer.writeTypePrefixForScalar(value, gen);
  serialize(value, gen, provider);
  typeSer.writeTypeSuffixForScalar(value, gen);
        and implementations for type serialized as JSON Arrays or Objects would differ slightly, as START-ARRAY/END-ARRAY and START-OBJECT/END-OBJECT pairs need to be properly handled with respect to serializing of contents.
        Overrides:
        serializeWithType in class JsonSerializer<java.lang.Object>
        Parameters:
        value - Value to serialize; can not be null.
        gen - Generator used to output resulting Json content
        provider - Provider that can be used to get serializers for serializing Objects value contains, if any.
        typeSer - Type serializer to use for including type information
        Throws:
        java.io.IOException

      • isEmpty

        public boolean isEmpty​(SerializerProvider prov,
                       java.lang.Object value)
        Description copied from class: JsonSerializer
        Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).

        Default implementation will consider only null values to be empty.

        NOTE: replaces JsonSerializer.isEmpty(Object), which was deprecated in 2.5

        Overrides:
        isEmpty in class JsonSerializer<java.lang.Object>