Module tools.jackson.databind

Package tools.jackson.databind.ser.std

Class ToEmptyObjectSerializer

java.lang.Object

tools.jackson.databind.ValueSerializer<T>

tools.jackson.databind.ser.std.StdSerializer<Object>

tools.jackson.databind.ser.std.ToEmptyObjectSerializer

All Implemented Interfaces:

JsonFormatVisitable

Direct Known Subclasses:

UnknownSerializer

public class ToEmptyObjectSerializer
extends StdSerializer<Object>

Simple "bogus" serializer that will just serialize an empty Object for any given value. Quite similar to UnknownSerializer with the exception that serialization never fails.

Nested Class Summary

Nested classes/interfaces inherited from class tools.jackson.databind.ValueSerializer

ValueSerializer.None

Field Summary

Fields inherited from class tools.jackson.databind.ser.std.StdSerializer

_handledType

Constructor Summary

Constructors

Constructor	Description
ToEmptyObjectSerializer(Class<?> raw)
ToEmptyObjectSerializer(JavaType type)

Method Summary

Modifier and Type	Method	Description
void	acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint)	Default implementation specifies no format.
boolean	isEmpty(SerializationContext provider, Object value)	Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).
void	serialize(Object value, tools.jackson.core.JsonGenerator gen, SerializationContext ctxt)	Method that can be called to ask implementation to serialize values of type this serializer handles.
void	serializeWithType(Object value, tools.jackson.core.JsonGenerator gen, SerializationContext ctxt, TypeSerializer typeSer)	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.

Methods inherited from class tools.jackson.databind.ser.std.StdSerializer

_neitherNull, _nonEmpty, _wrapIOFailure, acceptJsonFormatVisitorForBinary, createSchemaNode, createSchemaNode, findAnnotatedContentSerializer, findContextualConvertingSerializer, findFormatFeature, findFormatOverrides, findIncludeOverrides, findPropertyFilter, handledType, isDefaultSerializer, visitArrayFormat, visitArrayFormat, visitFloatFormat, visitIntFormat, visitIntFormat, visitStringFormat, visitStringFormat, wrapAndThrow, wrapAndThrow

Methods inherited from class tools.jackson.databind.ValueSerializer

createContextual, getDelegatee, isUnwrappingSerializer, properties, replaceDelegatee, resolve, unwrappingSerializer, usesObjectId, withFilterId, withFormatOverrides, withIgnoredProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ToEmptyObjectSerializer

public ToEmptyObjectSerializer(Class<?> raw)

ToEmptyObjectSerializer

public ToEmptyObjectSerializer(JavaType type)

Method Details

serialize

public void serialize(Object value,
 tools.jackson.core.JsonGenerator gen,
 SerializationContext ctxt)
               throws tools.jackson.core.JacksonException

Description copied from class: ValueSerializer

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

Specified by:

serialize in class StdSerializer<Object>

Parameters:

value - Value to serialize; can not be null.

gen - Generator used to output resulting Json content

ctxt - Context that can be used to get serializers for serializing Objects value contains, if any.

Throws:

tools.jackson.core.JacksonException

serializeWithType

public void serializeWithType(Object value,
 tools.jackson.core.JsonGenerator gen,
 SerializationContext ctxt,
 TypeSerializer typeSer)
                       throws tools.jackson.core.JacksonException

Description copied from class: ValueSerializer

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 ValueSerializer<Object>

Parameters:

value - Value to serialize; can not be null.

gen - Generator used to output resulting Json content

ctxt - Context that can be used to get serializers for serializing Objects value contains, if any.

typeSer - Type serializer to use for including type information

Throws:

tools.jackson.core.JacksonException

isEmpty

public boolean isEmpty(SerializationContext provider,
 Object value)

Description copied from class: ValueSerializer

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.

Overrides:

isEmpty in class ValueSerializer<Object>

acceptJsonFormatVisitor

public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor,
 JavaType typeHint)
                             throws tools.jackson.core.JacksonException

Description copied from class: StdSerializer

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

Specified by:

acceptJsonFormatVisitor in interface JsonFormatVisitable

Overrides:

acceptJsonFormatVisitor in class StdSerializer<Object>

typeHint - Type of element (entity like property) being visited

Throws:

tools.jackson.core.JacksonException