DefaultSerializerProvider (jackson-databind 2.2.1)

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 ArrayList<ObjectIdGenerator<?>>`	`_objectIdGenerators`
`protected IdentityHashMap<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
_config, _dateFormat, _keySerializer, _knownSerializers, _nullKeySerializer, _nullValueSerializer, _rootNames, _serializationView, _serializerCache, _serializerFactory, _unknownTypeSerializer, CACHE_UNKNOWN_MAPPINGS, DEFAULT_NULL_KEY_SERIALIZER, DEFAULT_UNKNOWN_SERIALIZER, TYPE_OBJECT

Constructor Summary

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

Method Summary

Methods
Modifier and Type	Method and Description
`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)
`abstract DefaultSerializerProvider`	`createInstance(SerializationConfig config, SerializerFactory jsf)` Overridable method, 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)` The method to be called by `ObjectMapper` and `ObjectWriter` to generate JSON schema for given type.
`boolean`	`hasSerializerFor(Class<?> cls)` Method that can be called to see if this serializer provider can find a serializer for an instance of given class.
`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 jgen, 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 jgen, 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 jgen, 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, _handleContextual, _handleContextualResolvable, _handleResolvable, _reportIncompatibleRootType, defaultSerializeDateKey, defaultSerializeDateKey, defaultSerializeDateValue, defaultSerializeDateValue, defaultSerializeField, defaultSerializeNull, defaultSerializeValue, findKeySerializer, findNullKeySerializer, findNullValueSerializer, findTypedValueSerializer, findTypedValueSerializer, findValueSerializer, findValueSerializer, getActiveView, getAnnotationIntrospector, getConfig, getDefaultNullKeySerializer, getDefaultNullValueSerializer, getFilterProvider, getLocale, getSerializationView, getTimeZone, getTypeFactory, getUnknownTypeSerializer, isEnabled, setDefaultKeySerializer, setNullKeySerializer, setNullValueSerializer

Methods inherited from class com.fasterxml.jackson.databind.DatabindContext
canOverrideAccessModifiers, constructSpecializedType, constructType, converterInstance, isEnabled, objectIdGeneratorInstance

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

- Field Detail
  - _seenObjectIds
```
protected transient IdentityHashMap<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
```
- Constructor Detail
  - DefaultSerializerProvider
```
protected DefaultSerializerProvider()
```
  - DefaultSerializerProvider
```
protected DefaultSerializerProvider(SerializerProvider src,
                         SerializationConfig config,
                         SerializerFactory f)
```
- Method Detail
  - createInstance
```
public abstract DefaultSerializerProvider createInstance(SerializationConfig config,
                                       SerializerFactory jsf)
```
    Overridable method, used to create a non-blueprint instances from the blueprint. This is needed to retain state during serialization.
  - serializeValue
```
public void serializeValue(JsonGenerator jgen,
                  Object value)
                    throws IOException,
                           JsonGenerationException
```
    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
    
    JsonGenerationException
  - serializeValue
```
public void serializeValue(JsonGenerator jgen,
                  Object value,
                  JavaType rootType)
                    throws IOException,
                           JsonGenerationException
```
    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
    
    JsonGenerationException
  - serializeValue
```
public void serializeValue(JsonGenerator jgen,
                  Object value,
                  JavaType rootType,
                  JsonSerializer<Object> ser)
                    throws IOException,
                           JsonGenerationException
```
    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
    
    JsonGenerationException
    Since:
    
    2.1
  - generateJsonSchema
```
public JsonSchema generateJsonSchema(Class<?> type)
                              throws JsonMappingException
```
    The method to be called by ObjectMapper and ObjectWriter to generate JSON schema for given type.
    
    Parameters:
    type - The type for which to generate schema
    
    Throws:
    
    JsonMappingException
  - 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
  - hasSerializerFor
```
public boolean hasSerializerFor(Class<?> cls)
```
    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.
  - 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.
  - 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
  - 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

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

Constructor Detail

DefaultSerializerProvider

DefaultSerializerProvider

Method Detail

createInstance

serializeValue

serializeValue

serializeValue

generateJsonSchema

acceptJsonFormatVisitor

hasSerializerFor

cachedSerializersCount

flushCachedSerializers

findObjectId

serializerInstance