com.fasterxml.jackson.databind.ser.impl

Class UnwrappingBeanSerializer

java.lang.Object

com.fasterxml.jackson.databind.JsonSerializer<T>

com.fasterxml.jackson.databind.ser.std.StdSerializer<Object>

com.fasterxml.jackson.databind.ser.std.BeanSerializerBase

com.fasterxml.jackson.databind.ser.impl.UnwrappingBeanSerializer

All Implemented Interfaces:

JsonFormatVisitable, SchemaAware, ContextualSerializer, ResolvableSerializer, Serializable

public class UnwrappingBeanSerializer
extends BeanSerializerBase
implements Serializable

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonSerializer

JsonSerializer.None

Field Summary

Fields

Modifier and Type	Field and Description
protected NameTransformer	_nameTransformer Transformer used to add prefix and/or suffix for properties of unwrapped POJO.

Fields inherited from class com.fasterxml.jackson.databind.ser.std.BeanSerializerBase

_anyGetterWriter, _filteredProps, _objectIdWriter, _propertyFilterId, _props, _serializationShape, _typeId, NAME_FOR_OBJECT_REF, NO_PROPS

Fields inherited from class com.fasterxml.jackson.databind.ser.std.StdSerializer

_handledType

Constructor Summary

Constructors

Modifier	Constructor and Description
	UnwrappingBeanSerializer(BeanSerializerBase src, NameTransformer transformer) Constructor used for creating unwrapping instance of a standard BeanSerializer
	UnwrappingBeanSerializer(UnwrappingBeanSerializer src, ObjectIdWriter objectIdWriter)
	UnwrappingBeanSerializer(UnwrappingBeanSerializer src, ObjectIdWriter objectIdWriter, Object filterId)
protected	UnwrappingBeanSerializer(UnwrappingBeanSerializer src, String[] toIgnore)

Method Summary

Methods

Modifier and Type	Method and Description
protected BeanSerializerBase	asArraySerializer() JSON Array output can not be done if unwrapping operation is requested; so implementation will simply return 'this'.
boolean	isUnwrappingSerializer() Accessor for checking whether this serializer is an "unwrapping" serializer; this is necessary to know since it may also require caller to suppress writing of the leading property name.
void	serialize(Object bean, JsonGenerator gen, SerializerProvider provider) Main serialization method that will delegate actual output to configured BeanPropertyWriter instances.
void	serializeWithType(Object bean, JsonGenerator gen, SerializerProvider provider, 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.
String	toString()
JsonSerializer<Object>	unwrappingSerializer(NameTransformer transformer) Method that will return serializer instance that produces "unwrapped" serialization, if applicable for type being serialized (which is the case for some serializers that produce JSON Objects as output).
BeanSerializerBase	withFilterId(Object filterId) Mutant factory used for creating a new instance with different filter id (used with JsonFilter annotation)
protected BeanSerializerBase	withIgnorals(String[] toIgnore) Mutant factory used for creating a new instance with additional set of properties to ignore (from properties this instance otherwise has)
BeanSerializerBase	withObjectIdWriter(ObjectIdWriter objectIdWriter) Mutant factory used for creating a new instance with different ObjectIdWriter.

Methods inherited from class com.fasterxml.jackson.databind.ser.std.BeanSerializerBase

_customTypeId, _serializeObjectId, _serializeWithObjectId, _serializeWithObjectId, acceptJsonFormatVisitor, createContextual, findConvertingSerializer, getSchema, properties, resolve, serializeFields, serializeFieldsFiltered, usesObjectId

Methods inherited from class com.fasterxml.jackson.databind.ser.std.StdSerializer

createObjectNode, createSchemaNode, createSchemaNode, findConvertingContentSerializer, findFormatFeature, findFormatOverrides, findPropertyFilter, getSchema, handledType, isDefaultSerializer, visitArrayFormat, visitArrayFormat, visitFloatFormat, visitIntFormat, visitIntFormat, visitStringFormat, visitStringFormat, wrapAndThrow, wrapAndThrow

Methods inherited from class com.fasterxml.jackson.databind.JsonSerializer

getDelegatee, isEmpty, isEmpty, replaceDelegatee

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.fasterxml.jackson.databind.jsonschema.SchemaAware

getSchema

Field Detail

_nameTransformer

protected final NameTransformer _nameTransformer

Transformer used to add prefix and/or suffix for properties of unwrapped POJO.

Constructor Detail

UnwrappingBeanSerializer

public UnwrappingBeanSerializer(BeanSerializerBase src,
                        NameTransformer transformer)

Constructor used for creating unwrapping instance of a standard BeanSerializer

UnwrappingBeanSerializer

public UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
                        ObjectIdWriter objectIdWriter)

UnwrappingBeanSerializer

public UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
                        ObjectIdWriter objectIdWriter,
                        Object filterId)

UnwrappingBeanSerializer

protected UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
                        String[] toIgnore)

Method Detail

unwrappingSerializer

public JsonSerializer<Object> unwrappingSerializer(NameTransformer transformer)

Description copied from class: JsonSerializer

Method that will return serializer instance that produces "unwrapped" serialization, if applicable for type being serialized (which is the case for some serializers that produce JSON Objects as output). If no unwrapped serializer can be constructed, will simply return serializer as-is.

Default implementation just returns serializer as-is, indicating that no unwrapped variant exists

Overrides:

unwrappingSerializer in class JsonSerializer<Object>

Parameters:

transformer - Name transformation to use to convert between names of unwrapper properties

isUnwrappingSerializer

public boolean isUnwrappingSerializer()

Description copied from class: JsonSerializer

Accessor for checking whether this serializer is an "unwrapping" serializer; this is necessary to know since it may also require caller to suppress writing of the leading property name.

Overrides:

isUnwrappingSerializer in class JsonSerializer<Object>

withObjectIdWriter

public BeanSerializerBase withObjectIdWriter(ObjectIdWriter objectIdWriter)

Description copied from class: BeanSerializerBase

Mutant factory used for creating a new instance with different ObjectIdWriter.

Specified by:

withObjectIdWriter in class BeanSerializerBase

withFilterId

public BeanSerializerBase withFilterId(Object filterId)

Description copied from class: BeanSerializerBase

Mutant factory used for creating a new instance with different filter id (used with JsonFilter annotation)

Specified by:

withFilterId in class BeanSerializerBase

withIgnorals

protected BeanSerializerBase withIgnorals(String[] toIgnore)

Description copied from class: BeanSerializerBase

Mutant factory used for creating a new instance with additional set of properties to ignore (from properties this instance otherwise has)

Specified by:

withIgnorals in class BeanSerializerBase

asArraySerializer

protected BeanSerializerBase asArraySerializer()

JSON Array output can not be done if unwrapping operation is requested; so implementation will simply return 'this'.

Specified by:

asArraySerializer in class BeanSerializerBase

serialize

public final void serialize(Object bean,
             JsonGenerator gen,
             SerializerProvider provider)
                     throws IOException

Main serialization method that will delegate actual output to configured BeanPropertyWriter instances.

Specified by:

serialize in class BeanSerializerBase

Parameters:

bean - 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:

IOException

serializeWithType

public void serializeWithType(Object bean,
                     JsonGenerator gen,
                     SerializerProvider provider,
                     TypeSerializer typeSer)
                       throws 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 BeanSerializerBase

Parameters:

bean - 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:

IOException

toString

public String toString()

Overrides:

toString in class Object