Class MapSerializer

java.lang.Object

org.codehaus.jackson.map.JsonSerializer<Map<?,?>>

org.codehaus.jackson.map.ser.std.SerializerBase<Map<?,?>>

org.codehaus.jackson.map.ser.std.ContainerSerializerBase<Map<?,?>>

org.codehaus.jackson.map.ser.std.MapSerializer

All Implemented Interfaces:

ResolvableSerializer, SchemaAware

Direct Known Subclasses:

MapSerializer

public class MapSerializer
extends ContainerSerializerBase<Map<?,?>>
implements ResolvableSerializer

Standard serializer implementation for serializing {link java.util.Map} types.

Note: about the only configurable setting currently is ability to filter out entries with specified names.

Nested Class Summary

Nested classes/interfaces inherited from class JsonSerializer

JsonSerializer.None

Field Summary

Fields

Modifier and Type	Field	Description
protected PropertySerializerMap	_dynamicValueSerializers	If value type can not be statically determined, mapping from runtime value types to serializers are stored in this object.
protected final HashSet<String>	_ignoredEntries	Set of entries to omit during serialization, if any
protected JsonSerializer<Object>	_keySerializer	Key serializer to use, if it can be statically determined
protected final JavaType	_keyType	Declared type of keys
protected final BeanProperty	_property	Map-valued property being serialized with this instance
protected JsonSerializer<Object>	_valueSerializer	Value serializer to use, if it can be statically determined
protected final JavaType	_valueType	Declared type of contained values
protected final boolean	_valueTypeIsStatic	Whether static types should be used for serialization of values or not (if not, dynamic runtime type is used)
protected final TypeSerializer	_valueTypeSerializer	Type identifier serializer used for values, if any.
protected static final JavaType	UNSPECIFIED_TYPE

Fields inherited from class SerializerBase

_handledType

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MapSerializer()
protected	MapSerializer(HashSet<String> ignoredEntries, JavaType keyType, JavaType valueType, boolean valueTypeIsStatic, TypeSerializer vts, JsonSerializer<Object> keySerializer, JsonSerializer<Object> valueSerializer, BeanProperty property)

Method Summary

Modifier and Type	Method	Description
protected final JsonSerializer<Object>	_findAndAddDynamic(PropertySerializerMap map, Class<?> type, SerializerProvider provider)
protected final JsonSerializer<Object>	_findAndAddDynamic(PropertySerializerMap map, JavaType type, SerializerProvider provider)
ContainerSerializerBase<?>	_withValueTypeSerializer(TypeSerializer vts)
static MapSerializer	construct(String[] ignoredList, JavaType mapType, boolean staticValueType, TypeSerializer vts, BeanProperty property)	Deprecated. As of 1.8; use the variant with more arguments
static MapSerializer	construct(String[] ignoredList, JavaType mapType, boolean staticValueType, TypeSerializer vts, BeanProperty property, JsonSerializer<Object> keySerializer, JsonSerializer<Object> valueSerializer)
JsonNode	getSchema(SerializerProvider provider, Type typeHint)	Note: since Jackson 1.9, default implementation claims type is "string"
void	resolve(SerializerProvider provider)	Need to get callback to resolve value serializer, if static typing is used (either being forced, or because value type is final)
void	serialize(Map<?,?> value, JsonGenerator jgen, SerializerProvider provider)	Method that can be called to ask implementation to serialize values of type this serializer handles.
void	serializeFields(Map<?,?> value, JsonGenerator jgen, SerializerProvider provider)	Method called to serialize fields, when the value type is not statically known.
protected void	serializeFieldsUsing(Map<?,?> value, JsonGenerator jgen, SerializerProvider provider, JsonSerializer<Object> ser)	Method called to serialize fields, when the value type is statically known, so that value serializer is passed and does not need to be fetched from provider.
protected void	serializeTypedFields(Map<?,?> value, JsonGenerator jgen, SerializerProvider provider)
void	serializeWithType(Map<?,?> value, JsonGenerator jgen, 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.

Methods inherited from class ContainerSerializerBase

withValueTypeSerializer

Methods inherited from class SerializerBase

createObjectNode, createSchemaNode, createSchemaNode, handledType, isDefaultSerializer, wrapAndThrow, wrapAndThrow, wrapAndThrow, wrapAndThrow

Methods inherited from class JsonSerializer

isUnwrappingSerializer, unwrappingSerializer

Methods inherited from class Object

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

Field Details

UNSPECIFIED_TYPE

protected static final JavaType UNSPECIFIED_TYPE

_property

protected final BeanProperty _property

Map-valued property being serialized with this instance

Since:

1.7

_ignoredEntries

protected final HashSet<String> _ignoredEntries

Set of entries to omit during serialization, if any

_valueTypeIsStatic

protected final boolean _valueTypeIsStatic

Whether static types should be used for serialization of values or not (if not, dynamic runtime type is used)

_keyType

protected final JavaType _keyType

Declared type of keys

Since:

1.7

_valueType

protected final JavaType _valueType

Declared type of contained values

_keySerializer

protected JsonSerializer<Object> _keySerializer

Key serializer to use, if it can be statically determined

Since:

1.7

_valueSerializer

protected JsonSerializer<Object> _valueSerializer

Value serializer to use, if it can be statically determined

Since:

1.5

_valueTypeSerializer

protected final TypeSerializer _valueTypeSerializer

Type identifier serializer used for values, if any.

_dynamicValueSerializers

protected PropertySerializerMap _dynamicValueSerializers

If value type can not be statically determined, mapping from runtime value types to serializers are stored in this object.

Since:

1.8

Constructor Details

MapSerializer

protected MapSerializer()

MapSerializer

protected MapSerializer(HashSet<String> ignoredEntries,
 JavaType keyType,
 JavaType valueType,
 boolean valueTypeIsStatic,
 TypeSerializer vts,
 JsonSerializer<Object> keySerializer,
 JsonSerializer<Object> valueSerializer,
 BeanProperty property)

Method Details

_withValueTypeSerializer

public ContainerSerializerBase<?> _withValueTypeSerializer(TypeSerializer vts)

Specified by:

_withValueTypeSerializer in class ContainerSerializerBase<Map<?,?>>

construct

@Deprecated
public static MapSerializer construct(String[] ignoredList,
 JavaType mapType,
 boolean staticValueType,
 TypeSerializer vts,
 BeanProperty property)

Deprecated.

As of 1.8; use the variant with more arguments

Factory method used to construct Map serializers.

Parameters:

ignoredList - Array of entry names that are to be filtered on serialization; null if none

mapType - Declared type information (needed for static typing)

staticValueType - Whether static typing should be used for the Map (which includes its contents)

vts - Type serializer to use for map entry values, if any

construct

public static MapSerializer construct(String[] ignoredList,
 JavaType mapType,
 boolean staticValueType,
 TypeSerializer vts,
 BeanProperty property,
 JsonSerializer<Object> keySerializer,
 JsonSerializer<Object> valueSerializer)

serialize

public void serialize(Map<?,?> value,
 JsonGenerator jgen,
 SerializerProvider provider)
               throws IOException,
JsonGenerationException

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 SerializerBase<Map<?,?>>

Parameters:

value - Value to serialize; can not be null.

jgen - 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

JsonGenerationException

serializeWithType

public void serializeWithType(Map<?,?> value,
 JsonGenerator jgen,
 SerializerProvider provider,
 TypeSerializer typeSer)
                       throws IOException,
JsonGenerationException

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 ignore serialization of type information, and just calls JsonSerializer.serialize(T, JsonGenerator, SerializerProvider): serializers that can embed type information should override this to implement actual handling. Most common such handling is done by something like:

  // note: method to call depends on whether this type is serialized as JSON scalar, object or Array!
  typeSer.writeTypePrefixForScalar(value, jgen);
  serialize(value, jgen, provider);
  typeSer.writeTypeSuffixForScalar(value, jgen);

Overrides:

serializeWithType in class JsonSerializer<Map<?,?>>

Parameters:

value - Value to serialize; can not be null.

jgen - 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

JsonGenerationException

serializeFields

public void serializeFields(Map<?,?> value,
 JsonGenerator jgen,
 SerializerProvider provider)
                     throws IOException,
JsonGenerationException

Method called to serialize fields, when the value type is not statically known.

Throws:

IOException

JsonGenerationException

serializeFieldsUsing

protected void serializeFieldsUsing(Map<?,?> value,
 JsonGenerator jgen,
 SerializerProvider provider,
 JsonSerializer<Object> ser)
                             throws IOException,
JsonGenerationException

Method called to serialize fields, when the value type is statically known, so that value serializer is passed and does not need to be fetched from provider.

Throws:

IOException

JsonGenerationException

serializeTypedFields

protected void serializeTypedFields(Map<?,?> value,
 JsonGenerator jgen,
 SerializerProvider provider)
                             throws IOException,
JsonGenerationException

Throws:

IOException

JsonGenerationException

getSchema

public JsonNode getSchema(SerializerProvider provider,
 Type typeHint)

Description copied from class: SerializerBase

Note: since Jackson 1.9, default implementation claims type is "string"

Specified by:

getSchema in interface SchemaAware

Overrides:

getSchema in class SerializerBase<Map<?,?>>

Parameters:

provider - The serializer provider.

typeHint - A hint about the type.

Returns:

Json-schema for this serializer.

resolve

public void resolve(SerializerProvider provider)
             throws JsonMappingException

Need to get callback to resolve value serializer, if static typing is used (either being forced, or because value type is final)

Specified by:

resolve in interface ResolvableSerializer

Parameters:

provider - Provider that has constructed serializer this method is called on.

Throws:

JsonMappingException

_findAndAddDynamic

protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
 Class<?> type,
 SerializerProvider provider)
                                                   throws JsonMappingException

Throws:

JsonMappingException

_findAndAddDynamic

protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map,
 JavaType type,
 SerializerProvider provider)
                                                   throws JsonMappingException

Throws:

JsonMappingException