DefaultSerializerProvider (jackson-databind 2.9.10.1)

java.lang.Object
- com.fasterxml.jackson.databind.DatabindContext
- - com.fasterxml.jackson.databind.SerializerProvider
  - - com.fasterxml.jackson.databind.ser.DefaultSerializerProvider

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DefaultSerializerProvider.Impl
```
public abstract class DefaultSerializerProvider
extends SerializerProvider
implements Serializable
```
Standard implementation used by ObjectMapper: adds methods only exposed to ObjectMapper, as well as constructors.
Note that class is abstract just because it does not define createInstance(com.fasterxml.jackson.databind.SerializationConfig, com.fasterxml.jackson.databind.ser.SerializerFactory) method.
Also note that all custom SerializerProvider implementations must sub-class this class: ObjectMapper requires this type, not basic provider type.

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class DefaultSerializerProvider.Impl
Concrete implementation that defines factory method(s), defined as final.

Nested Classes
Modifier and Type	Class and Description
`static class`	`DefaultSerializerProvider.Impl` Concrete implementation that defines factory method(s), defined as final.

Field Summary

Fields
Modifier and Type	Field and Description
`protected JsonGenerator`	`_generator` Generator used for serialization.
`protected ArrayList<ObjectIdGenerator<?>>`	`_objectIdGenerators`
`protected Map<Object,WritableObjectId>`	`_seenObjectIds` Per-serialization map Object Ids that have seen so far, iff Object Id handling is enabled.

Fields inherited from class com.fasterxml.jackson.databind.SerializerProvider
_attributes, _config, _dateFormat, _keySerializer, _knownSerializers, _nullKeySerializer, _nullValueSerializer, _serializationView, _serializerCache, _serializerFactory, _stdNullValueSerializer, _unknownTypeSerializer, CACHE_UNKNOWN_MAPPINGS, DEFAULT_NULL_KEY_SERIALIZER, DEFAULT_UNKNOWN_SERIALIZER

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`DefaultSerializerProvider()`
`protected`	`DefaultSerializerProvider(DefaultSerializerProvider src)`
`protected`	`DefaultSerializerProvider(SerializerProvider src, SerializationConfig config, SerializerFactory f)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`protected Map<Object,WritableObjectId>`	`_createObjectIdMap()` Overridable helper method used for creating `Map` used for storing mappings from serializable objects to their Object Ids.
`protected void`	`_serializeNull(JsonGenerator gen)` Helper method called when root value to serialize is null
`void`	`acceptJsonFormatVisitor(JavaType javaType, JsonFormatVisitorWrapper visitor)` The method to be called by `ObjectMapper` and `ObjectWriter` to to expose the format of the given to to the given visitor
`int`	`cachedSerializersCount()` Method that can be used to determine how many serializers this provider is caching currently (if it does caching: default implementation does) Exact count depends on what kind of serializers get cached; default implementation caches all serializers, including ones that are eagerly constructed (for optimal access speed)
`DefaultSerializerProvider`	`copy()` Method needed to ensure that `ObjectMapper.copy()` will work properly; specifically, that caches are cleared, but settings will otherwise remain identical; and that no sharing of state occurs.
`abstract DefaultSerializerProvider`	`createInstance(SerializationConfig config, SerializerFactory jsf)` Method that sub-classes need to implement: used to create a non-blueprint instances from the blueprint.
`WritableObjectId`	`findObjectId(Object forPojo, ObjectIdGenerator<?> generatorType)` Method called to find the Object Id for given POJO, if one has been generated.
`void`	`flushCachedSerializers()` Method that will drop all serializers currently cached by this provider.
`JsonSchema`	`generateJsonSchema(Class<?> type)` Deprecated. Should not be used any more
`JsonGenerator`	`getGenerator()` Accessor for the `JsonGenerator` currently in use for serializing content.
`boolean`	`hasSerializerFor(Class<?> cls, AtomicReference<Throwable> cause)` Method that can be called to see if this serializer provider can find a serializer for an instance of given class.
`Object`	`includeFilterInstance(BeanPropertyDefinition forProperty, Class<?> filterClass)` Method that can be called to construct and configure `JsonInclude` filter instance, given a `Class` to instantiate (with default constructor, by default).
`boolean`	`includeFilterSuppressNulls(Object filter)` Follow-up method that may be called after calling `SerializerProvider.includeFilterInstance(com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition, java.lang.Class<?>)`, to check handling of `null` values by the filter.
`void`	`serializePolymorphic(JsonGenerator gen, Object value, JavaType rootType, JsonSerializer<Object> valueSer, TypeSerializer typeSer)` Alternate serialization call used for polymorphic types, when `TypeSerializer` is already known, but the actual serializer may or may not be.
`JsonSerializer<Object>`	`serializerInstance(Annotated annotated, Object serDef)` Method that can be called to construct and configure serializer instance, either given a `Class` to instantiate (with default constructor), or an uninitialized serializer instance.
`void`	`serializeValue(JsonGenerator gen, Object value)` The method to be called by `ObjectMapper` and `ObjectWriter` for serializing given value, using serializers that this provider has access to (via caching and/or creating new serializers as need be).
`void`	`serializeValue(JsonGenerator gen, Object value, JavaType rootType)` The method to be called by `ObjectMapper` and `ObjectWriter` for serializing given value (assumed to be of specified root type, instead of runtime type of value), using serializers that this provider has access to (via caching and/or creating new serializers as need be),
`void`	`serializeValue(JsonGenerator gen, Object value, JavaType rootType, JsonSerializer<Object> ser)` The method to be called by `ObjectWriter` for serializing given value (assumed to be of specified root type, instead of runtime type of value), when it may know specific `JsonSerializer` to use.

Methods inherited from class com.fasterxml.jackson.databind.SerializerProvider
_createAndCacheUntypedSerializer, _createAndCacheUntypedSerializer, _createUntypedSerializer, _dateFormat, _findExplicitUntypedSerializer, _handleContextualResolvable, _handleResolvable, _reportIncompatibleRootType, canOverrideAccessModifiers, defaultSerializeDateKey, defaultSerializeDateKey, defaultSerializeDateValue, defaultSerializeDateValue, defaultSerializeField, defaultSerializeNull, defaultSerializeValue, findKeySerializer, findKeySerializer, findNullKeySerializer, findNullValueSerializer, findPrimaryPropertySerializer, findPrimaryPropertySerializer, findTypedValueSerializer, findTypedValueSerializer, findTypeSerializer, findValueSerializer, findValueSerializer, findValueSerializer, findValueSerializer, getActiveView, getAnnotationIntrospector, getAttribute, getConfig, getDefaultNullKeySerializer, getDefaultNullValueSerializer, getDefaultPropertyFormat, getDefaultPropertyInclusion, getFilterProvider, getLocale, getSerializationView, getTimeZone, getTypeFactory, getUnknownTypeSerializer, handlePrimaryContextualization, handleSecondaryContextualization, hasSerializationFeatures, invalidTypeIdException, isEnabled, isEnabled, isUnknownTypeSerializer, mappingException, mappingException, reportBadDefinition, reportBadDefinition, reportBadDefinition, reportBadPropertyDefinition, reportBadTypeDefinition, reportMappingProblem, reportMappingProblem, setAttribute, setDefaultKeySerializer, setNullKeySerializer, setNullValueSerializer

Methods inherited from class com.fasterxml.jackson.databind.DatabindContext
_colonConcat, _desc, _format, _quotedString, _truncate, constructSpecializedType, constructType, converterInstance, objectIdGeneratorInstance, objectIdResolverInstance, reportBadDefinition, resolveSubType

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - _seenObjectIds
```
protected transient Map<Object,WritableObjectId> _seenObjectIds
```
    Per-serialization map Object Ids that have seen so far, iff Object Id handling is enabled.
  - _objectIdGenerators
```
protected transient ArrayList<ObjectIdGenerator<?>> _objectIdGenerators
```
  - _generator
```
protected transient JsonGenerator _generator
```
    Generator used for serialization. Needed mostly for error reporting purposes.
    
    Since:
    
    2.8
- Constructor Detail
  - DefaultSerializerProvider
```
protected DefaultSerializerProvider()
```
  - DefaultSerializerProvider
```
protected DefaultSerializerProvider(SerializerProvider src,
                                    SerializationConfig config,
                                    SerializerFactory f)
```
  - DefaultSerializerProvider
```
protected DefaultSerializerProvider(DefaultSerializerProvider src)
```
- Method Detail
  - createInstance
```
public abstract DefaultSerializerProvider createInstance(SerializationConfig config,
                                                         SerializerFactory jsf)
```
    Method that sub-classes need to implement: used to create a non-blueprint instances from the blueprint. This is needed to retain state during serialization.
  - copy
```
public DefaultSerializerProvider copy()
```
    Method needed to ensure that ObjectMapper.copy() will work properly; specifically, that caches are cleared, but settings will otherwise remain identical; and that no sharing of state occurs.
    
    Since:
    
    2.5
  - serializerInstance
```
public JsonSerializer<Object> serializerInstance(Annotated annotated,
                                                 Object serDef)
                                          throws JsonMappingException
```
    Description copied from class: SerializerProvider
    
    Method that can be called to construct and configure serializer instance, either given a Class to instantiate (with default constructor), or an uninitialized serializer instance. Either way, serialize will be properly resolved (via ResolvableSerializer) and/or contextualized (via ContextualSerializer) as necessary.
    
    Specified by:
    
    serializerInstance in class SerializerProvider
    
    Parameters:
    
    annotated - Annotated entity that contained definition
    
    serDef - Serializer definition: either an instance or class
    
    Throws:
    
    JsonMappingException
  - includeFilterInstance
```
public Object includeFilterInstance(BeanPropertyDefinition forProperty,
                                    Class<?> filterClass)
```
    Description copied from class: SerializerProvider
    
    Method that can be called to construct and configure JsonInclude filter instance, given a Class to instantiate (with default constructor, by default).
    
    Specified by:
    
    includeFilterInstance in class SerializerProvider
    
    Parameters:
    
    forProperty - (optional) If filter is created for a property, that property; `null` if filter created via defaulting, global or per-type.
  - includeFilterSuppressNulls
```
public boolean includeFilterSuppressNulls(Object filter)
                                   throws JsonMappingException
```
    Description copied from class: SerializerProvider
    
    Follow-up method that may be called after calling SerializerProvider.includeFilterInstance(com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition, java.lang.Class<?>), to check handling of `null` values by the filter.
    
    Specified by:
    
    includeFilterSuppressNulls in class SerializerProvider
    
    Throws:
    
    JsonMappingException
  - findObjectId
```
public WritableObjectId findObjectId(Object forPojo,
                                     ObjectIdGenerator<?> generatorType)
```
    Description copied from class: SerializerProvider
    
    Method called to find the Object Id for given POJO, if one has been generated. Will always return a non-null Object; contents vary depending on whether an Object Id already exists or not.
    
    Specified by:
    
    findObjectId in class SerializerProvider
  - _createObjectIdMap
```
protected Map<Object,WritableObjectId> _createObjectIdMap()
```
    Overridable helper method used for creating Map used for storing mappings from serializable objects to their Object Ids.
    
    Since:
    
    2.3
  - hasSerializerFor
```
public boolean hasSerializerFor(Class<?> cls,
                                AtomicReference<Throwable> cause)
```
    Method that can be called to see if this serializer provider can find a serializer for an instance of given class.
    Note that no Exceptions are thrown, including unchecked ones: implementations are to swallow exceptions if necessary.
  - getGenerator
```
public JsonGenerator getGenerator()
```
    Accessor for the JsonGenerator currently in use for serializing content. Null for blueprint instances; non-null for actual active provider instances.
    
    Overrides:
    
    getGenerator in class SerializerProvider
    
    Since:
    
    2.8
  - serializeValue
```
public void serializeValue(JsonGenerator gen,
                           Object value)
                    throws IOException
```
    The method to be called by ObjectMapper and ObjectWriter for serializing given value, using serializers that this provider has access to (via caching and/or creating new serializers as need be).
    
    Throws:
    
    IOException
  - serializeValue
```
public void serializeValue(JsonGenerator gen,
                           Object value,
                           JavaType rootType)
                    throws IOException
```
    The method to be called by ObjectMapper and ObjectWriter for serializing given value (assumed to be of specified root type, instead of runtime type of value), using serializers that this provider has access to (via caching and/or creating new serializers as need be),
    
    Parameters:
    
    rootType - Type to use for locating serializer to use, instead of actual runtime type. Must be actual type, or one of its super types
    
    Throws:
    
    IOException
  - serializeValue
```
public void serializeValue(JsonGenerator gen,
                           Object value,
                           JavaType rootType,
                           JsonSerializer<Object> ser)
                    throws IOException
```
    The method to be called by ObjectWriter for serializing given value (assumed to be of specified root type, instead of runtime type of value), when it may know specific JsonSerializer to use.
    
    Parameters:
    
    rootType - Type to use for locating serializer to use, instead of actual runtime type, if no serializer is passed
    
    ser - Root Serializer to use, if not null
    
    Throws:
    
    IOException
    
    Since:
    
    2.1
  - serializePolymorphic
```
public void serializePolymorphic(JsonGenerator gen,
                                 Object value,
                                 JavaType rootType,
                                 JsonSerializer<Object> valueSer,
                                 TypeSerializer typeSer)
                          throws IOException
```
    Alternate serialization call used for polymorphic types, when TypeSerializer is already known, but the actual serializer may or may not be.
    
    Throws:
    
    IOException
    
    Since:
    
    2.6
  - _serializeNull
```
protected void _serializeNull(JsonGenerator gen)
                       throws IOException
```
    Helper method called when root value to serialize is null
    
    Throws:
    
    IOException
    
    Since:
    
    2.3
  - cachedSerializersCount
```
public int cachedSerializersCount()
```
    Method that can be used to determine how many serializers this provider is caching currently (if it does caching: default implementation does) Exact count depends on what kind of serializers get cached; default implementation caches all serializers, including ones that are eagerly constructed (for optimal access speed)
    The main use case for this method is to allow conditional flushing of serializer cache, if certain number of entries is reached.
  - flushCachedSerializers
```
public void flushCachedSerializers()
```
    Method that will drop all serializers currently cached by this provider. This can be used to remove memory usage (in case some serializers are only used once or so), or to force re-construction of serializers after configuration changes for mapper than owns the provider.
  - acceptJsonFormatVisitor
```
public void acceptJsonFormatVisitor(JavaType javaType,
                                    JsonFormatVisitorWrapper visitor)
                             throws JsonMappingException
```
    The method to be called by ObjectMapper and ObjectWriter to to expose the format of the given to to the given visitor
    
    Parameters:
    
    javaType - The type for which to generate format
    
    visitor - the visitor to accept the format
    
    Throws:
    
    JsonMappingException
  - generateJsonSchema
```
@Deprecated
public JsonSchema generateJsonSchema(Class<?> type)
                                          throws JsonMappingException
```
    Deprecated. Should not be used any more
    
    The method to be called by ObjectMapper to generate JSON schema for given type.
    
    Parameters:
    
    type - The type for which to generate schema
    
    Throws:
    
    JsonMappingException

Class DefaultSerializerProvider

Nested Class Summary

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.SerializerProvider

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Field Detail

_seenObjectIds

_objectIdGenerators

_generator

Constructor Detail

DefaultSerializerProvider

DefaultSerializerProvider

DefaultSerializerProvider

Method Detail

createInstance

copy

serializerInstance

includeFilterInstance

includeFilterSuppressNulls

findObjectId

_createObjectIdMap

hasSerializerFor

getGenerator

serializeValue

serializeValue

serializeValue

serializePolymorphic

_serializeNull

cachedSerializersCount

flushCachedSerializers

acceptJsonFormatVisitor

generateJsonSchema