Class JsonValueSerializer

    • Method Detail

      • isEmpty

        public boolean isEmpty​(SerializerProvider ctxt,
                               java.lang.Object bean)
        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>
      • createContextual

        public JsonSerializer<?> createContextual​(SerializerProvider ctxt,
                                                  BeanProperty property)
                                           throws JsonMappingException
        We can try to find the actual serializer for value, if we can statically figure out what the result type must be.
        Specified by:
        createContextual in interface ContextualSerializer
        Parameters:
        ctxt - 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
      • serialize

        public void serialize​(java.lang.Object bean,
                              JsonGenerator gen,
                              SerializerProvider ctxt)
                       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:
        bean - Value to serialize; can not be null.
        gen - Generator used to output resulting Json content
        ctxt - 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 bean,
                                      JsonGenerator gen,
                                      SerializerProvider ctxt,
                                      TypeSerializer typeSer0)
                               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:
        bean - Value to serialize; can not be null.
        gen - Generator used to output resulting Json content
        ctxt - Provider that can be used to get serializers for serializing Objects value contains, if any.
        typeSer0 - Type serializer to use for including type information
        Throws:
        java.io.IOException
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object