Top Description Fields Constructors Methods
tools.jackson.databind.ser.std

public Class NullSerializer

extends StdSerializer<Object>
Class Inheritance
Annotations
@JacksonStdImpl
Imports
tools.jackson.core.*, tools.jackson.databind.*, tools.jackson.databind.annotation.JacksonStdImpl, tools.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper, tools.jackson.databind.jsontype.TypeSerializer
This is a simple dummy serializer that will just output literal JSON null value whenever serialization is requested. Used as the default "null serializer" (which is used for serializing null object references unless overridden), as well as for some more exotic types (java.lang.Void).

Field Summary

Modifier and TypeField and Description
public static final NullSerializer
instance

Inherited from tools.jackson.databind.ser.std.StdSerializer:
_handledType

Constructor Summary

AccessConstructor and Description
private
NullSerializer()

Method Summary

Modifier and TypeMethod and Description
public void
acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)

Overrides tools.jackson.databind.ser.std.StdSerializer.acceptJsonFormatVisitor.

Implements tools.jackson.databind.jsonFormatVisitors.JsonFormatVisitable.acceptJsonFormatVisitor.

Default implementation specifies no format.

public void
serialize(Object value, JsonGenerator gen, SerializationContext provider)

Implements abstract tools.jackson.databind.ser.std.StdSerializer.serialize.

Method that can be called to ask implementation to serialize values of type this serializer handles.

public void
serializeWithType(Object value, JsonGenerator gen, SerializationContext serializers, TypeSerializer typeSer)

Overrides tools.jackson.databind.ValueSerializer.serializeWithType.

Although this method should rarely get called, for convenience we should override it, and handle it same way as "natural" types: by serializing exactly as is, without type decorations.

Inherited from tools.jackson.databind.ser.std.StdSerializer:
_neitherNull_nonEmpty_wrapIOFailureacceptJsonFormatVisitorForBinarycreateSchemaNodecreateSchemaNodefindAnnotatedContentSerializerfindContextualConvertingSerializerfindFormatFeaturefindFormatOverridesfindIncludeOverridesfindPropertyFilterhandledTypeisDefaultSerializervisitArrayFormatvisitArrayFormatvisitFloatFormatvisitIntFormatvisitIntFormatvisitStringFormatvisitStringFormatwrapAndThrowwrapAndThrow

Field Detail

instanceback to summary
public static final NullSerializer instance

Constructor Detail

NullSerializerback to summary
private NullSerializer()

Method Detail

acceptJsonFormatVisitorback to summary
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)

Overrides tools.jackson.databind.ser.std.StdSerializer.acceptJsonFormatVisitor.

Implements tools.jackson.databind.jsonFormatVisitors.JsonFormatVisitable.acceptJsonFormatVisitor.

Doc from tools.jackson.databind.ser.std.StdSerializer.acceptJsonFormatVisitor.

Default implementation specifies no format. This behavior is usually overriden by custom serializers.

Annotations
@Override
serializeback to summary
public void serialize(Object value, JsonGenerator gen, SerializationContext provider) throws JacksonException

Implements abstract tools.jackson.databind.ser.std.StdSerializer.serialize.

Doc from tools.jackson.databind.ValueSerializer.serialize.

Method that can be called to ask implementation to serialize values of type this serializer handles.

Annotations
@Override
serializeWithTypeback to summary
public void serializeWithType(Object value, JsonGenerator gen, SerializationContext serializers, TypeSerializer typeSer) throws JacksonException

Overrides tools.jackson.databind.ValueSerializer.serializeWithType.

Although this method should rarely get called, for convenience we should override it, and handle it same way as "natural" types: by serializing exactly as is, without type decorations. The most common possible use case is that of delegation by JSON filter; caller cannot know what kind of serializer it gets handed.

Annotations
@Override