Deserializers (jackson-databind 2.6.5)

All Known Implementing Classes:

CoreXMLDeserializers, Deserializers.Base, SimpleDeserializers
```
public interface Deserializers
```
Interface that defines API for simple extensions that can provide additional deserializers for various types. Access is by a single callback method; instance is to either return a configured 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.

Nested Class Summary

Nested Classes
Modifier and Type Interface and Description

static class Deserializers.Base
Basic Deserializers implementation that implements all methods but provides no deserializers.

Nested Classes
Modifier and Type	Interface and Description
`static class`	`Deserializers.Base` Basic `Deserializers` implementation that implements all methods but provides no deserializers.

Method Summary

Methods
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.

- Method Detail
  - findArrayDeserializer
```
JsonDeserializer<?> findArrayDeserializer(ArrayType type,
                                        DeserializationConfig config,
                                        BeanDescription beanDesc,
                                        TypeDeserializer elementTypeDeserializer,
                                        JsonDeserializer<?> elementDeserializer)
                                          throws JsonMappingException
```
    Method called to locate serializer for specified array 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).
    
    Parameters:
    type - Type of array instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    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)
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findCollectionDeserializer
```
JsonDeserializer<?> findCollectionDeserializer(CollectionType type,
                                             DeserializationConfig config,
                                             BeanDescription beanDesc,
                                             TypeDeserializer elementTypeDeserializer,
                                             JsonDeserializer<?> elementDeserializer)
                                               throws JsonMappingException
```
    Method called to locate serializer for specified 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).
    
    Parameters:
    type - Type of collection instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    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)
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findCollectionLikeDeserializer
```
JsonDeserializer<?> findCollectionLikeDeserializer(CollectionLikeType type,
                                                 DeserializationConfig config,
                                                 BeanDescription beanDesc,
                                                 TypeDeserializer elementTypeDeserializer,
                                                 JsonDeserializer<?> elementDeserializer)
                                                   throws JsonMappingException
```
    Method called to locate serializer for specified "Collection-like" type (one that acts like 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).
    
    Parameters:
    type - Type of instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    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)
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findEnumDeserializer
```
JsonDeserializer<?> findEnumDeserializer(Class<?> type,
                                       DeserializationConfig config,
                                       BeanDescription beanDesc)
                                         throws JsonMappingException
```
    Method called to locate deserializer for specified Enum type.
    
    Parameters:
    type - Type of Enum instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findMapDeserializer
```
JsonDeserializer<?> findMapDeserializer(MapType type,
                                      DeserializationConfig config,
                                      BeanDescription beanDesc,
                                      KeyDeserializer keyDeserializer,
                                      TypeDeserializer elementTypeDeserializer,
                                      JsonDeserializer<?> elementDeserializer)
                                        throws JsonMappingException
```
    Method called to locate deserializer for specified 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)).
    
    Parameters:
    type - Type of Map instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    keyDeserializer - 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)
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findMapLikeDeserializer
```
JsonDeserializer<?> findMapLikeDeserializer(MapLikeType type,
                                          DeserializationConfig config,
                                          BeanDescription beanDesc,
                                          KeyDeserializer keyDeserializer,
                                          TypeDeserializer elementTypeDeserializer,
                                          JsonDeserializer<?> elementDeserializer)
                                            throws JsonMappingException
```
    Method called to locate serializer for specified "Map-like" type (one that acts like 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)).
    
    Parameters:
    type - Type of Map instances to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    keyDeserializer - 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)
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findTreeNodeDeserializer
```
JsonDeserializer<?> findTreeNodeDeserializer(Class<? extends JsonNode> nodeType,
                                           DeserializationConfig config,
                                           BeanDescription beanDesc)
                                             throws JsonMappingException
```
    Method called to locate deserializer for specified JSON tree node type.
    
    Parameters:
    nodeType - Specific type of JSON tree nodes to deserialize (subtype of JsonNode)
    config - Configuration in effect
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException
  - findBeanDeserializer
```
JsonDeserializer<?> findBeanDeserializer(JavaType type,
                                       DeserializationConfig config,
                                       BeanDescription beanDesc)
                                         throws JsonMappingException
```
    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)
    
    Parameters:
    type - Bean type to deserialize
    config - Configuration in effect
    beanDesc - Definition of the enumeration type that contains class annotations and other information typically needed for building deserializers
    
    Returns:
    Deserializer to use for the type; or null if this provider does not know how to construct it
    
    Throws:
    
    JsonMappingException

Interface Deserializers

Nested Class Summary

Method Summary

Method Detail

findArrayDeserializer

findCollectionDeserializer

findCollectionLikeDeserializer

findEnumDeserializer

findMapDeserializer

findMapLikeDeserializer

findTreeNodeDeserializer

findBeanDeserializer