com.fasterxml.jackson.databind.jsontype.impl

Class AsWrapperTypeDeserializer

java.lang.Object

com.fasterxml.jackson.databind.jsontype.TypeDeserializer

com.fasterxml.jackson.databind.jsontype.impl.TypeDeserializerBase

com.fasterxml.jackson.databind.jsontype.impl.AsWrapperTypeDeserializer

All Implemented Interfaces:

Serializable

public class AsWrapperTypeDeserializer
extends TypeDeserializerBase
implements Serializable

Type deserializer used with JsonTypeInfo.As.WRAPPER_OBJECT inclusion mechanism. Simple since JSON structure used is always the same, regardless of structure used for actual value: wrapping is done using a single-element JSON Object where type id is the key, and actual object data as the value.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.jsontype.impl.TypeDeserializerBase

_baseType, _defaultImpl, _defaultImplDeserializer, _deserializers, _idResolver, _property, _typeIdVisible, _typePropertyName

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AsWrapperTypeDeserializer(AsWrapperTypeDeserializer src, BeanProperty property)
	AsWrapperTypeDeserializer(JavaType bt, TypeIdResolver idRes, String typePropertyName, boolean typeIdVisible, JavaType defaultImpl)

Method Summary

Modifier and Type	Method and Description
protected Object	_deserialize(JsonParser p, DeserializationContext ctxt) Method that handles type information wrapper, locates actual subtype deserializer to use, and calls it to do actual deserialization.
Object	deserializeTypedFromAny(JsonParser jp, DeserializationContext ctxt) Method called to let this type deserializer handle deserialization of "typed" object, when value itself may have been serialized using any kind of JSON value (Array, Object, scalar).
Object	deserializeTypedFromArray(JsonParser jp, DeserializationContext ctxt) Method called to let this type deserializer handle deserialization of "typed" object, when value itself is serialized as JSON Array (regardless of Java type).
Object	deserializeTypedFromObject(JsonParser jp, DeserializationContext ctxt) Deserializing type id enclosed using WRAPPER_OBJECT style is straightforward
Object	deserializeTypedFromScalar(JsonParser jp, DeserializationContext ctxt) Method called to let this type deserializer handle deserialization of "typed" object, when value itself is serialized as a scalar JSON value (something other than Array or Object), regardless of Java type.
TypeDeserializer	forProperty(BeanProperty prop) Method called to create contextual version, to be used for values of given property.
JsonTypeInfo.As	getTypeInclusion() Accessor for type information inclusion method that deserializer uses; indicates how type information is (expected to be) embedded in JSON input.

Methods inherited from class com.fasterxml.jackson.databind.jsontype.impl.TypeDeserializerBase

_deserializeWithNativeTypeId, _deserializeWithNativeTypeId, _findDefaultImplDeserializer, _findDeserializer, _handleMissingTypeId, _handleUnknownTypeId, baseType, baseTypeName, getDefaultImpl, getPropertyName, getTypeIdResolver, hasDefaultImpl, toString

Methods inherited from class com.fasterxml.jackson.databind.jsontype.TypeDeserializer

deserializeIfNatural, deserializeIfNatural

Methods inherited from class java.lang.Object

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

Constructor Detail

AsWrapperTypeDeserializer

public AsWrapperTypeDeserializer(JavaType bt,
                                 TypeIdResolver idRes,
                                 String typePropertyName,
                                 boolean typeIdVisible,
                                 JavaType defaultImpl)

Since:

2.8

AsWrapperTypeDeserializer

protected AsWrapperTypeDeserializer(AsWrapperTypeDeserializer src,
                                    BeanProperty property)

Method Detail

forProperty

public TypeDeserializer forProperty(BeanProperty prop)

Description copied from class: TypeDeserializer

Method called to create contextual version, to be used for values of given property. This may be the type itself (as is the case for bean properties), or values contained (for Collection or Map valued properties).

Specified by:

forProperty in class TypeDeserializerBase

getTypeInclusion

public JsonTypeInfo.As getTypeInclusion()

Description copied from class: TypeDeserializer

Accessor for type information inclusion method that deserializer uses; indicates how type information is (expected to be) embedded in JSON input.

Specified by:

getTypeInclusion in class TypeDeserializerBase

deserializeTypedFromObject

public Object deserializeTypedFromObject(JsonParser jp,
                                         DeserializationContext ctxt)
                                  throws IOException

Deserializing type id enclosed using WRAPPER_OBJECT style is straightforward

Specified by:

deserializeTypedFromObject in class TypeDeserializer

Throws:

IOException

deserializeTypedFromArray

public Object deserializeTypedFromArray(JsonParser jp,
                                        DeserializationContext ctxt)
                                 throws IOException

Description copied from class: TypeDeserializer

Method called to let this type deserializer handle deserialization of "typed" object, when value itself is serialized as JSON Array (regardless of Java type). Method needs to figure out intended polymorphic type, locate JsonDeserializer to use, and call it with JSON data to deserializer (which does not contain type information).

Specified by:

deserializeTypedFromArray in class TypeDeserializer

Throws:

IOException

deserializeTypedFromScalar

public Object deserializeTypedFromScalar(JsonParser jp,
                                         DeserializationContext ctxt)
                                  throws IOException

Description copied from class: TypeDeserializer

Method called to let this type deserializer handle deserialization of "typed" object, when value itself is serialized as a scalar JSON value (something other than Array or Object), regardless of Java type. Method needs to figure out intended polymorphic type, locate JsonDeserializer to use, and call it with JSON data to deserializer (which does not contain type information).

Specified by:

deserializeTypedFromScalar in class TypeDeserializer

Throws:

IOException

deserializeTypedFromAny

public Object deserializeTypedFromAny(JsonParser jp,
                                      DeserializationContext ctxt)
                               throws IOException

Description copied from class: TypeDeserializer

Method called to let this type deserializer handle deserialization of "typed" object, when value itself may have been serialized using any kind of JSON value (Array, Object, scalar). Should only be called if JSON serialization is polymorphic (not Java type); for example when using JSON node representation, or "untyped" Java object (which may be Map, Collection, wrapper/primitive etc).

Specified by:

deserializeTypedFromAny in class TypeDeserializer

Throws:

IOException

_deserialize

protected Object _deserialize(JsonParser p,
                              DeserializationContext ctxt)
                       throws IOException

Method that handles type information wrapper, locates actual subtype deserializer to use, and calls it to do actual deserialization.

Throws:

IOException