public interface Deserializers
JsonDeserializer
for specified type, or null to indicate that it
does not support handling of the type. In latter case, further calls can be made
for other providers; in former case returned deserializer is used for handling of
instances of specified type.
Unlike with Serializers
,
multiple different methods are used since different kinds of types typically
require different kinds of inputs.
Modifier and Type | Interface and Description |
---|---|
static class |
Deserializers.Base
Basic
Deserializers implementation that implements all methods but provides
no deserializers. |
Modifier and Type | Method and Description |
---|---|
JsonDeserializer<?> |
findArrayDeserializer(ArrayType type,
DeserializationConfig config,
BeanDescription beanDesc,
TypeDeserializer elementTypeDeserializer,
JsonDeserializer<?> elementDeserializer)
Method called to locate serializer for specified array type.
|
JsonDeserializer<?> |
findBeanDeserializer(JavaType type,
DeserializationConfig config,
BeanDescription beanDesc)
Method called to locate deserializer for specified value type which does not belong to any other
category (not an Enum, Collection, Map, Array or tree node)
|
JsonDeserializer<?> |
findCollectionDeserializer(CollectionType type,
DeserializationConfig config,
BeanDescription beanDesc,
TypeDeserializer elementTypeDeserializer,
JsonDeserializer<?> elementDeserializer)
Method called to locate serializer for specified
Collection (List, Set etc) type. |
JsonDeserializer<?> |
findCollectionLikeDeserializer(CollectionLikeType type,
DeserializationConfig config,
BeanDescription beanDesc,
TypeDeserializer elementTypeDeserializer,
JsonDeserializer<?> elementDeserializer)
Method called to locate serializer for specified
"Collection-like" type (one that acts
like
Collection but does not implement it). |
JsonDeserializer<?> |
findEnumDeserializer(Class<?> type,
DeserializationConfig config,
BeanDescription beanDesc)
Method called to locate deserializer for specified
Enum type. |
JsonDeserializer<?> |
findMapDeserializer(MapType type,
DeserializationConfig config,
BeanDescription beanDesc,
KeyDeserializer keyDeserializer,
TypeDeserializer elementTypeDeserializer,
JsonDeserializer<?> elementDeserializer)
Method called to locate deserializer for specified
Map type. |
JsonDeserializer<?> |
findMapLikeDeserializer(MapLikeType type,
DeserializationConfig config,
BeanDescription beanDesc,
KeyDeserializer keyDeserializer,
TypeDeserializer elementTypeDeserializer,
JsonDeserializer<?> elementDeserializer)
Method called to locate serializer for specified
"Map-like" type (one that acts
like
Map but does not implement it). |
JsonDeserializer<?> |
findTreeNodeDeserializer(Class<? extends JsonNode> nodeType,
DeserializationConfig config,
BeanDescription beanDesc)
Method called to locate deserializer for specified JSON tree node type.
|
JsonDeserializer<?> findArrayDeserializer(ArrayType type, DeserializationConfig config, BeanDescription beanDesc, TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer) throws JsonMappingException
Deserializer for element type may be passed, if configured explicitly at higher level (by annotations, typically), but usually are not. Type deserializer for element is passed if one is needed based on contextual information (annotations on declared element class; or on field or method type is associated with).
type
- Type of array instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializerselementTypeDeserializer
- If element type needs polymorphic type handling, this is
the type information deserializer to use; should usually be used as is when constructing
array deserializer.elementDeserializer
- Deserializer to use for elements, if explicitly defined (by using
annotations, for exmple). May be null, in which case it should be resolved here (or using
ResolvableDeserializer
callback)JsonMappingException
JsonDeserializer<?> findCollectionDeserializer(CollectionType type, DeserializationConfig config, BeanDescription beanDesc, TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer) throws JsonMappingException
Collection
(List, Set etc) type.
Deserializer for element type may be passed, if configured explicitly at higher level (by annotations, typically), but usually are not. Type deserializer for element is passed if one is needed based on contextual information (annotations on declared element class; or on field or method type is associated with).
type
- Type of collection instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializerselementTypeDeserializer
- If element type needs polymorphic type handling, this is
the type information deserializer to use; should usually be used as is when constructing
array deserializer.elementDeserializer
- Deserializer to use for elements, if explicitly defined (by using
annotations, for exmple). May be null, in which case it should be resolved here (or using
ResolvableDeserializer
callback)JsonMappingException
JsonDeserializer<?> findCollectionLikeDeserializer(CollectionLikeType type, DeserializationConfig config, BeanDescription beanDesc, TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer) throws JsonMappingException
Collection
but does not implement it).
Deserializer for element type may be passed, if configured explicitly at higher level (by annotations, typically), but usually are not. Type deserializer for element is passed if one is needed based on contextual information (annotations on declared element class; or on field or method type is associated with).
type
- Type of instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializerselementTypeDeserializer
- If element type needs polymorphic type handling, this is
the type information deserializer to use; should usually be used as is when constructing
array deserializer.elementDeserializer
- Deserializer to use for elements, if explicitly defined (by using
annotations, for exmple). May be null, in which case it should be resolved here (or using
ResolvableDeserializer
callback)JsonMappingException
JsonDeserializer<?> findEnumDeserializer(Class<?> type, DeserializationConfig config, BeanDescription beanDesc) throws JsonMappingException
Enum
type.type
- Type of Enum
instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializersJsonMappingException
JsonDeserializer<?> findMapDeserializer(MapType type, DeserializationConfig config, BeanDescription beanDesc, KeyDeserializer keyDeserializer, TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer) throws JsonMappingException
Map
type.
Deserializer for element type may be passed, if configured explicitly at higher level (by annotations, typically), but usually are not. Type deserializer for element is passed if one is needed based on contextual information (annotations on declared element class; or on field or method type is associated with).
Similarly, a KeyDeserializer
may be passed, but this is only done if there is
a specific configuration override (annotations) to indicate instance to use.
Otherwise null is passed, and key deserializer needs to be obtained later during
resolution (using ResolvableDeserializer.resolve(com.fasterxml.jackson.databind.DeserializationContext)
).
type
- Type of Map
instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializerskeyDeserializer
- Key deserializer use, if it is defined via annotations or other configuration;
null if default key deserializer for key type can be used.elementTypeDeserializer
- If element type needs polymorphic type handling, this is
the type information deserializer to use; should usually be used as is when constructing
array deserializer.elementDeserializer
- Deserializer to use for elements, if explicitly defined (by using
annotations, for exmple). May be null, in which case it should be resolved here (or using
ResolvableDeserializer
callback)JsonMappingException
JsonDeserializer<?> findMapLikeDeserializer(MapLikeType type, DeserializationConfig config, BeanDescription beanDesc, KeyDeserializer keyDeserializer, TypeDeserializer elementTypeDeserializer, JsonDeserializer<?> elementDeserializer) throws JsonMappingException
Map
but does not implement it).
Deserializer for element type may be passed, if configured explicitly at higher level (by annotations, typically), but usually are not. Type deserializer for element is passed if one is needed based on contextual information (annotations on declared element class; or on field or method type is associated with).
Similarly, a KeyDeserializer
may be passed, but this is only done if there is
a specific configuration override (annotations) to indicate instance to use.
Otherwise null is passed, and key deserializer needs to be obtained later during
resolution (using ResolvableDeserializer.resolve(com.fasterxml.jackson.databind.DeserializationContext)
).
type
- Type of Map
instances to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializerskeyDeserializer
- Key deserializer use, if it is defined via annotations or other configuration;
null if default key deserializer for key type can be used.elementTypeDeserializer
- If element type needs polymorphic type handling, this is
the type information deserializer to use; should usually be used as is when constructing
array deserializer.elementDeserializer
- Deserializer to use for elements, if explicitly defined (by using
annotations, for exmple). May be null, in which case it should be resolved here (or using
ResolvableDeserializer
callback)JsonMappingException
JsonDeserializer<?> findTreeNodeDeserializer(Class<? extends JsonNode> nodeType, DeserializationConfig config, BeanDescription beanDesc) throws JsonMappingException
nodeType
- Specific type of JSON tree nodes to deserialize
(subtype of JsonNode
)config
- Configuration in effectJsonMappingException
JsonDeserializer<?> findBeanDeserializer(JavaType type, DeserializationConfig config, BeanDescription beanDesc) throws JsonMappingException
type
- Bean type to deserializeconfig
- Configuration in effectbeanDesc
- Definition of the enumeration type that contains class annotations and
other information typically needed for building deserializersJsonMappingException
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