BeanDeserializerBase (jackson-databind 2.10.0 API)

java.lang.Object
- com.fasterxml.jackson.databind.JsonDeserializer<T>
- - com.fasterxml.jackson.databind.deser.std.StdDeserializer<Object>
  - - com.fasterxml.jackson.databind.deser.BeanDeserializerBase

All Implemented Interfaces:

ContextualDeserializer, NullValueProvider, ResolvableDeserializer, ValueInstantiator.Gettable, Serializable

Direct Known Subclasses:

BeanAsArrayBuilderDeserializer, BeanAsArrayDeserializer, BeanDeserializer, BuilderBasedDeserializer
```
public abstract class BeanDeserializerBase
extends StdDeserializer<Object>
implements ContextualDeserializer, ResolvableDeserializer, ValueInstantiator.Gettable, Serializable
```
Base class for BeanDeserializer.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer
  JsonDeserializer.None

Field Summary

Fields
Modifier and Type	Field and Description
`protected SettableAnyProperty`	`_anySetter` Fallback setter used for handling any properties that are not mapped to regular setters.
`protected JsonDeserializer<Object>`	`_arrayDelegateDeserializer` Deserializer that is used iff array-delegate-based creator is to be used for deserializing from JSON Object.
`protected Map<String,SettableBeanProperty>`	`_backRefs` We may also have one or more back reference fields (usually zero or one).
`protected BeanPropertyMap`	`_beanProperties` Mapping of property names to properties, built when all properties to use have been successfully resolved.
`protected JavaType`	`_beanType` Declared type of the bean this deserializer handles.
`protected JsonDeserializer<Object>`	`_delegateDeserializer` Deserializer that is used iff delegate-based creator is to be used for deserializing from JSON Object.
`protected ExternalTypeHandler`	`_externalTypeIdHandler` Handler that we need iff any of properties uses external type id.
`protected Set<String>`	`_ignorableProps` In addition to properties that are set, we will also keep track of recognized but ignorable properties: these will be skipped without errors or warnings.
`protected boolean`	`_ignoreAllUnknown` Flag that can be set to ignore and skip unknown properties.
`protected ValueInjector[]`	`_injectables` List of `ValueInjector`s, if any injectable values are expected by the bean; otherwise null.
`protected boolean`	`_needViewProcesing` Flag that indicates that some aspect of deserialization depends on active view used (if any)
`protected boolean`	`_nonStandardCreation` Flag that is set to mark "non-standard" cases; where either we use one of non-default creators, or there are unwrapped values to consider.
`protected ObjectIdReader`	`_objectIdReader` If an Object Id is to be used for value handled by this deserializer, this reader is used for handling.
`protected PropertyBasedCreator`	`_propertyBasedCreator` If the bean needs to be instantiated using constructor or factory method that takes one or more named properties as argument(s), this creator is used for instantiation.
`protected JsonFormat.Shape`	`_serializationShape` Requested shape from bean class annotations.
`protected HashMap<ClassKey,JsonDeserializer<Object>>`	`_subDeserializers` Lazily constructed map used to contain deserializers needed for polymorphic subtypes.
`protected UnwrappedPropertyHandler`	`_unwrappedPropertyHandler` If one of properties has "unwrapped" value, we need separate helper object
`protected ValueInstantiator`	`_valueInstantiator` Object that handles details of constructing initial bean value (to which bind data to), unless instance is passed (via updateValue())
`protected boolean`	`_vanillaProcessing` Flag that indicates that no "special features" whatsoever are enabled, so the simplest processing is possible.
`protected static PropertyName`	`TEMP_PROPERTY_NAME`

Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_valueClass, _valueType, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`BeanDeserializerBase(BeanDeserializerBase src)`
`protected`	`BeanDeserializerBase(BeanDeserializerBase src, BeanPropertyMap beanProps)`
`protected`	`BeanDeserializerBase(BeanDeserializerBase src, boolean ignoreAllUnknown)`
`protected`	`BeanDeserializerBase(BeanDeserializerBase src, NameTransformer unwrapper)`
	`BeanDeserializerBase(BeanDeserializerBase src, ObjectIdReader oir)`
	`BeanDeserializerBase(BeanDeserializerBase src, Set<String> ignorableProps)`
`protected`	`BeanDeserializerBase(BeanDeserializerBuilder builder, BeanDescription beanDesc, BeanPropertyMap properties, Map<String,SettableBeanProperty> backRefs, Set<String> ignorableProps, boolean ignoreAllUnknown, boolean hasViews)` Constructor used when initially building a deserializer instance, given a `BeanDeserializerBuilder` that contains configuration.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`protected Object`	`_convertObjectId(JsonParser p, DeserializationContext ctxt, Object rawId, JsonDeserializer<Object> idDeser)` Helper method we need to do necessary conversion from whatever native object id type is, into declared type that Jackson internals expect.
`protected abstract Object`	`_deserializeUsingPropertyBased(JsonParser p, DeserializationContext ctxt)`
`protected NameTransformer`	`_findPropertyUnwrapper(DeserializationContext ctxt, SettableBeanProperty prop)` Helper method called to see if given property might be so-called unwrapped property: these require special handling.
`protected JsonDeserializer<Object>`	`_findSubclassDeserializer(DeserializationContext ctxt, Object bean, TokenBuffer unknownTokens)` Helper method called to (try to) locate deserializer for given sub-type of type that this deserializer handles.
`protected Object`	`_handleTypedObjectId(JsonParser p, DeserializationContext ctxt, Object pojo, Object rawId)` Offlined method called to handle "native" Object Id that has been read and known to be associated with given deserialized POJO.
`protected void`	`_replaceProperty(BeanPropertyMap props, SettableBeanProperty[] creatorProps, SettableBeanProperty origProp, SettableBeanProperty newProp)`
`protected SettableBeanProperty`	`_resolvedObjectIdProperty(DeserializationContext ctxt, SettableBeanProperty prop)` Method that wraps given property with `ObjectIdReferenceProperty` in case where object id resolution is required.
`protected SettableBeanProperty`	`_resolveInnerClassValuedProperty(DeserializationContext ctxt, SettableBeanProperty prop)` Helper method that will handle gruesome details of dealing with properties that have non-static inner class as value...
`protected SettableBeanProperty`	`_resolveManagedReferenceProperty(DeserializationContext ctxt, SettableBeanProperty prop)` Helper method called to see if given property is part of 'managed' property pair (managed + back reference), and if so, handle resolution details.
`protected SettableBeanProperty`	`_resolveMergeAndNullSettings(DeserializationContext ctxt, SettableBeanProperty prop, PropertyMetadata propMetadata)`
`protected abstract BeanDeserializerBase`	`asArrayDeserializer()` Fluent factory for creating a variant that can handle POJO output as a JSON Array.
`JsonDeserializer<?>`	`createContextual(DeserializationContext ctxt, BeanProperty property)` Although most of post-processing is done in resolve(), we only get access to referring property's annotations here; and this is needed to support per-property ObjectIds.
`Iterator<SettableBeanProperty>`	`creatorProperties()` Accessor for finding properties that represents values to pass through property-based creator method (constructor or factory method)
`Object`	`deserializeFromArray(JsonParser p, DeserializationContext ctxt)`
`Object`	`deserializeFromBoolean(JsonParser p, DeserializationContext ctxt)` Method called to deserialize POJO value from a JSON boolean value (true, false)
`Object`	`deserializeFromDouble(JsonParser p, DeserializationContext ctxt)` Method called to deserialize POJO value from a JSON floating-point number.
`Object`	`deserializeFromEmbedded(JsonParser p, DeserializationContext ctxt)`
`Object`	`deserializeFromNumber(JsonParser p, DeserializationContext ctxt)`
`abstract Object`	`deserializeFromObject(JsonParser p, DeserializationContext ctxt)` General version used when handling needs more advanced features.
`protected Object`	`deserializeFromObjectId(JsonParser p, DeserializationContext ctxt)` Method called in cases where it looks like we got an Object Id to parse and use as a reference.
`protected Object`	`deserializeFromObjectUsingNonDefault(JsonParser p, DeserializationContext ctxt)`
`Object`	`deserializeFromString(JsonParser p, DeserializationContext ctxt)`
`protected Object`	`deserializeWithObjectId(JsonParser p, DeserializationContext ctxt)` Alternative deserialization method used when we expect to see Object Id; if so, we will need to ensure that the Id is seen before anything else, to ensure that it is available for solving references, even if JSON itself is not ordered that way.
`Object`	`deserializeWithType(JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer)` Base implementation that does not assume specific type inclusion mechanism.
`SettableBeanProperty`	`findBackReference(String logicalName)` Method needed by `BeanDeserializerFactory` to properly link managed- and back-reference pairs.
`protected JsonDeserializer<Object>`	`findConvertingDeserializer(DeserializationContext ctxt, SettableBeanProperty prop)` Helper method that can be used to see if specified property is annotated to indicate use of a converter for property value (in case of container types, it is container type itself, not key or content type).
`SettableBeanProperty`	`findProperty(int propertyIndex)` Alternate find method that tries to locate a property with given `property index`.
`SettableBeanProperty`	`findProperty(PropertyName propertyName)`
`SettableBeanProperty`	`findProperty(String propertyName)` Accessor for finding the property with given name, if POJO has one.
`Class<?>`	`getBeanClass()` Deprecated. Since 2.3, use `handledType()` instead
`AccessPattern`	`getEmptyAccessPattern()` This method may be called in conjunction with calls to `JsonDeserializer.getEmptyValue(DeserializationContext)`, to check whether it needs to be called just once (static values), or each time empty value is needed.
`Object`	`getEmptyValue(DeserializationContext ctxt)` Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings).
`Collection<Object>`	`getKnownPropertyNames()` Method that will either return null to indicate that type being deserializers has no concept of properties; or a collection of identifiers for which `toString` will give external property name.
`AccessPattern`	`getNullAccessPattern()` This method may be called in conjunction with calls to `JsonDeserializer.getNullValue(DeserializationContext)`, to check whether it needs to be called just once (static values), or each time empty value is needed.
`ObjectIdReader`	`getObjectIdReader()` Overridden to return true for those instances that are handling value for which Object Identity handling is enabled (either via value type or referring property).
`int`	`getPropertyCount()` Accessor for checking number of deserialized properties.
`ValueInstantiator`	`getValueInstantiator()`
`JavaType`	`getValueType()` Exact structured type this deserializer handles, if known.
`Class<?>`	`handledType()` Method for accessing type of values this deserializer produces.
`protected void`	`handleIgnoredProperty(JsonParser p, DeserializationContext ctxt, Object beanOrClass, String propName)` Method called when an explicitly ignored property (one specified with a name to match, either by property annotation or class annotation) is encountered.
`protected Object`	`handlePolymorphic(JsonParser p, DeserializationContext ctxt, Object bean, TokenBuffer unknownTokens)` Method called in cases where we may have polymorphic deserialization case: that is, type of Creator-constructed bean is not the type of deserializer itself.
`protected Object`	`handleUnknownProperties(DeserializationContext ctxt, Object bean, TokenBuffer unknownTokens)` Method called to handle set of one or more unknown properties, stored in their entirety in given `TokenBuffer` (as field entries, name and value).
`protected void`	`handleUnknownProperty(JsonParser p, DeserializationContext ctxt, Object beanOrClass, String propName)` Method called when a JSON property is encountered that has not matching setter, any-setter or field, and thus cannot be assigned.
`protected void`	`handleUnknownVanilla(JsonParser p, DeserializationContext ctxt, Object beanOrBuilder, String propName)` Helper method called for an unknown property, when using "vanilla" processing.
`boolean`	`hasProperty(String propertyName)`
`boolean`	`hasViews()`
`protected void`	`injectValues(DeserializationContext ctxt, Object bean)`
`boolean`	`isCachable()` Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).
`Iterator<SettableBeanProperty>`	`properties()` Accessor for iterating over properties this deserializer uses; with the exception that properties passed via Creator methods (specifically, "property-based constructor") are not included, but can be accessed separate by calling `creatorProperties()`
`void`	`replaceProperty(SettableBeanProperty original, SettableBeanProperty replacement)` Method that can be used to replace an existing property with a modified one.
`void`	`resolve(DeserializationContext ctxt)` Method called to finalize setup of this deserializer, after deserializer itself has been registered.
`Boolean`	`supportsUpdate(DeserializationConfig config)` Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not.
`abstract JsonDeserializer<Object>`	`unwrappingDeserializer(NameTransformer unwrapper)` Method that will return deserializer instance that is able to handle "unwrapped" value instances If no unwrapped instance can be constructed, will simply return this object as-is.
`BeanDeserializerBase`	`withBeanProperties(BeanPropertyMap props)` Mutant factory method that custom sub-classes must override; not left as abstract to prevent more drastic backwards compatibility problems.
`abstract BeanDeserializerBase`	`withIgnorableProperties(Set<String> ignorableProps)`
`abstract BeanDeserializerBase`	`withObjectIdReader(ObjectIdReader oir)`
`void`	`wrapAndThrow(Throwable t, Object bean, String fieldName, DeserializationContext ctxt)` Method that will modify caught exception (passed in as argument) as necessary to include reference information, and to ensure it is a subtype of `IOException`, or an unchecked exception.
`protected Object`	`wrapInstantiationProblem(Throwable t, DeserializationContext ctxt)`

Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer
_byteOverflow, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromArray, _deserializeFromEmpty, _deserializeWrappedValue, _failDoubleToIntCoercion, _findNullProvider, _hasTextualNull, _intOverflow, _isEmptyOrTextualNull, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _neitherNull, _nonNullNumber, _parseBooleanFromInt, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseIntPrimitive, _parseIntPrimitive, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _verifyNullForScalarCoercion, _verifyNumberForScalarCoercion, _verifyStringForScalarCoercion, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueType, handleMissingEndArrayForSingle, isDefaultDeserializer, isDefaultKeyDeserializer, parseDouble

Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer
deserialize, deserialize, deserializeWithType, getDelegatee, getEmptyValue, getNullValue, getNullValue, replaceDelegatee

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

- Field Detail
  - TEMP_PROPERTY_NAME
```
protected static final PropertyName TEMP_PROPERTY_NAME
```
  - _beanType
```
protected final JavaType _beanType
```
    Declared type of the bean this deserializer handles.
  - _serializationShape
```
protected final JsonFormat.Shape _serializationShape
```
    Requested shape from bean class annotations.
  - _valueInstantiator
```
protected final ValueInstantiator _valueInstantiator
```
    Object that handles details of constructing initial bean value (to which bind data to), unless instance is passed (via updateValue())
  - _delegateDeserializer
```
protected JsonDeserializer<Object> _delegateDeserializer
```
    Deserializer that is used iff delegate-based creator is to be used for deserializing from JSON Object.
  - _arrayDelegateDeserializer
```
protected JsonDeserializer<Object> _arrayDelegateDeserializer
```
    Deserializer that is used iff array-delegate-based creator is to be used for deserializing from JSON Object.
  - _propertyBasedCreator
```
protected PropertyBasedCreator _propertyBasedCreator
```
    If the bean needs to be instantiated using constructor or factory method that takes one or more named properties as argument(s), this creator is used for instantiation. This value gets resolved during general resolution.
  - _nonStandardCreation
```
protected boolean _nonStandardCreation
```
    Flag that is set to mark "non-standard" cases; where either we use one of non-default creators, or there are unwrapped values to consider.
  - _vanillaProcessing
```
protected boolean _vanillaProcessing
```
    Flag that indicates that no "special features" whatsoever are enabled, so the simplest processing is possible.
  - _beanProperties
```
protected final BeanPropertyMap _beanProperties
```
    Mapping of property names to properties, built when all properties to use have been successfully resolved.
  - _injectables
```
protected final ValueInjector[] _injectables
```
    List of ValueInjectors, if any injectable values are expected by the bean; otherwise null. This includes injectors used for injecting values via setters and fields, but not ones passed through constructor parameters.
  - _anySetter
```
protected SettableAnyProperty _anySetter
```
    Fallback setter used for handling any properties that are not mapped to regular setters. If setter is not null, it will be called once for each such property.
  - _ignorableProps
```
protected final Set<String> _ignorableProps
```
    In addition to properties that are set, we will also keep track of recognized but ignorable properties: these will be skipped without errors or warnings.
  - _ignoreAllUnknown
```
protected final boolean _ignoreAllUnknown
```
    Flag that can be set to ignore and skip unknown properties. If set, will not throw an exception for unknown properties.
  - _needViewProcesing
```
protected final boolean _needViewProcesing
```
    Flag that indicates that some aspect of deserialization depends on active view used (if any)
  - _backRefs
```
protected final Map<String,SettableBeanProperty> _backRefs
```
    We may also have one or more back reference fields (usually zero or one).
  - _subDeserializers
```
protected transient HashMap<ClassKey,JsonDeserializer<Object>> _subDeserializers
```
    Lazily constructed map used to contain deserializers needed for polymorphic subtypes. Note that this is only needed for polymorphic types, that is, when the actual type is not statically known. For other types this remains null.
  - _unwrappedPropertyHandler
```
protected UnwrappedPropertyHandler _unwrappedPropertyHandler
```
    If one of properties has "unwrapped" value, we need separate helper object
  - _externalTypeIdHandler
```
protected ExternalTypeHandler _externalTypeIdHandler
```
    Handler that we need iff any of properties uses external type id.
  - _objectIdReader
```
protected final ObjectIdReader _objectIdReader
```
    If an Object Id is to be used for value handled by this deserializer, this reader is used for handling.
- Constructor Detail
  - BeanDeserializerBase
```
protected BeanDeserializerBase(BeanDeserializerBuilder builder,
                               BeanDescription beanDesc,
                               BeanPropertyMap properties,
                               Map<String,SettableBeanProperty> backRefs,
                               Set<String> ignorableProps,
                               boolean ignoreAllUnknown,
                               boolean hasViews)
```
    Constructor used when initially building a deserializer instance, given a BeanDeserializerBuilder that contains configuration.
  - BeanDeserializerBase
```
protected BeanDeserializerBase(BeanDeserializerBase src)
```
  - BeanDeserializerBase
```
protected BeanDeserializerBase(BeanDeserializerBase src,
                               boolean ignoreAllUnknown)
```
  - BeanDeserializerBase
```
protected BeanDeserializerBase(BeanDeserializerBase src,
                               NameTransformer unwrapper)
```
  - BeanDeserializerBase
```
public BeanDeserializerBase(BeanDeserializerBase src,
                            ObjectIdReader oir)
```
  - BeanDeserializerBase
```
public BeanDeserializerBase(BeanDeserializerBase src,
                            Set<String> ignorableProps)
```
  - BeanDeserializerBase
```
protected BeanDeserializerBase(BeanDeserializerBase src,
                               BeanPropertyMap beanProps)
```
    Since:
    
    2.8
- Method Detail
  - unwrappingDeserializer
```
public abstract JsonDeserializer<Object> unwrappingDeserializer(NameTransformer unwrapper)
```
    Description copied from class: JsonDeserializer
    
    Method that will return deserializer instance that is able to handle "unwrapped" value instances If no unwrapped instance can be constructed, will simply return this object as-is.
    Default implementation just returns 'this' indicating that no unwrapped variant exists
    
    Overrides:
    
    unwrappingDeserializer in class JsonDeserializer<Object>
  - withObjectIdReader
```
public abstract BeanDeserializerBase withObjectIdReader(ObjectIdReader oir)
```
  - withIgnorableProperties
```
public abstract BeanDeserializerBase withIgnorableProperties(Set<String> ignorableProps)
```
  - withBeanProperties
```
public BeanDeserializerBase withBeanProperties(BeanPropertyMap props)
```
    Mutant factory method that custom sub-classes must override; not left as abstract to prevent more drastic backwards compatibility problems.
    
    Since:
    
    2.8
  - asArrayDeserializer
```
protected abstract BeanDeserializerBase asArrayDeserializer()
```
    Fluent factory for creating a variant that can handle POJO output as a JSON Array. Implementations may ignore this request if no such input is possible.
    
    Since:
    
    2.1
  - resolve
```
public void resolve(DeserializationContext ctxt)
             throws JsonMappingException
```
    Method called to finalize setup of this deserializer, after deserializer itself has been registered. This is needed to handle recursive and transitive dependencies.
    
    Specified by:
    
    resolve in interface ResolvableDeserializer
    
    Parameters:
    
    ctxt - Context to use for accessing configuration, resolving secondary deserializers
    
    Throws:
    
    JsonMappingException
  - _replaceProperty
```
protected void _replaceProperty(BeanPropertyMap props,
                                SettableBeanProperty[] creatorProps,
                                SettableBeanProperty origProp,
                                SettableBeanProperty newProp)
```
    Since:
    
    2.8.8
  - findConvertingDeserializer
```
protected JsonDeserializer<Object> findConvertingDeserializer(DeserializationContext ctxt,
                                                              SettableBeanProperty prop)
                                                       throws JsonMappingException
```
    Helper method that can be used to see if specified property is annotated to indicate use of a converter for property value (in case of container types, it is container type itself, not key or content type).
    NOTE: returned deserializer is NOT yet contextualized, caller needs to take care to do that.
    
    Throws:
    
    JsonMappingException
    
    Since:
    
    2.2
  - createContextual
```
public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
                                            BeanProperty property)
                                     throws JsonMappingException
```
    Although most of post-processing is done in resolve(), we only get access to referring property's annotations here; and this is needed to support per-property ObjectIds. We will also consider Shape transformations (read from Array) at this point, since it may come from either Class definition or property.
    
    Specified by:
    
    createContextual in interface ContextualDeserializer
    
    Parameters:
    
    ctxt - Deserialization context to access configuration, additional deserializers that may be needed by this deserializer
    
    property - Method, field or constructor parameter that represents the property (and is used to assign deserialized value). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' deserializer as is)
    
    Returns:
    
    Deserializer to use for deserializing values of specified property; may be this instance or a new instance.
    
    Throws:
    
    JsonMappingException
  - _resolveManagedReferenceProperty
```
protected SettableBeanProperty _resolveManagedReferenceProperty(DeserializationContext ctxt,
                                                                SettableBeanProperty prop)
                                                         throws JsonMappingException
```
    Helper method called to see if given property is part of 'managed' property pair (managed + back reference), and if so, handle resolution details.
    
    Throws:
    
    JsonMappingException
  - _resolvedObjectIdProperty
```
protected SettableBeanProperty _resolvedObjectIdProperty(DeserializationContext ctxt,
                                                         SettableBeanProperty prop)
                                                  throws JsonMappingException
```
    Method that wraps given property with ObjectIdReferenceProperty in case where object id resolution is required.
    
    Throws:
    
    JsonMappingException
  - _findPropertyUnwrapper
```
protected NameTransformer _findPropertyUnwrapper(DeserializationContext ctxt,
                                                 SettableBeanProperty prop)
                                          throws JsonMappingException
```
    Helper method called to see if given property might be so-called unwrapped property: these require special handling.
    
    Throws:
    
    JsonMappingException
  - _resolveInnerClassValuedProperty
```
protected SettableBeanProperty _resolveInnerClassValuedProperty(DeserializationContext ctxt,
                                                                SettableBeanProperty prop)
```
    Helper method that will handle gruesome details of dealing with properties that have non-static inner class as value...
  - _resolveMergeAndNullSettings
```
protected SettableBeanProperty _resolveMergeAndNullSettings(DeserializationContext ctxt,
                                                            SettableBeanProperty prop,
                                                            PropertyMetadata propMetadata)
                                                     throws JsonMappingException
```
    Throws:
    
    JsonMappingException
  - getNullAccessPattern
```
public AccessPattern getNullAccessPattern()
```
    Description copied from class: JsonDeserializer
    
    This method may be called in conjunction with calls to JsonDeserializer.getNullValue(DeserializationContext), to check whether it needs to be called just once (static values), or each time empty value is needed.
    Default implementation indicates that "null value" to use for input null is simply Java `null` for all deserializers, unless overridden by sub-classes. This information may be used as optimization.
    
    Specified by:
    
    getNullAccessPattern in interface NullValueProvider
    
    Overrides:
    
    getNullAccessPattern in class JsonDeserializer<Object>
  - getEmptyAccessPattern
```
public AccessPattern getEmptyAccessPattern()
```
    Description copied from class: JsonDeserializer
    
    This method may be called in conjunction with calls to JsonDeserializer.getEmptyValue(DeserializationContext), to check whether it needs to be called just once (static values), or each time empty value is needed.
    
    Overrides:
    
    getEmptyAccessPattern in class JsonDeserializer<Object>
  - getEmptyValue
```
public Object getEmptyValue(DeserializationContext ctxt)
                     throws JsonMappingException
```
    Description copied from class: JsonDeserializer
    
    Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings). Usually this is same as JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) (which in turn is usually simply Java null), but it can be overridden for specific types. Or, if type should never be converted from empty String, method can also throw an exception.
    This method may be called once, or multiple times, depending on what JsonDeserializer.getEmptyAccessPattern() returns.
    Default implementation simply calls JsonDeserializer.getNullValue(com.fasterxml.jackson.databind.DeserializationContext) and returns value.
    
    Overrides:
    
    getEmptyValue in class JsonDeserializer<Object>
    
    Throws:
    
    JsonMappingException
  - isCachable
```
public boolean isCachable()
```
    Description copied from class: JsonDeserializer
    
    Method called to see if deserializer instance is cachable and usable for other properties of same type (type for which instance was created).
    Note that cached instances are still resolved on per-property basis, if instance implements ResolvableDeserializer: cached instance is just as the base. This means that in most cases it is safe to cache instances; however, it only makes sense to cache instances if instantiation is expensive, or if instances are heavy-weight.
    Default implementation returns false, to indicate that no caching is done.
    
    Overrides:
    
    isCachable in class JsonDeserializer<Object>
  - supportsUpdate
```
public Boolean supportsUpdate(DeserializationConfig config)
```
    Description copied from class: JsonDeserializer
    
    Introspection method that may be called to see whether deserializer supports update of an existing value (aka "merging") or not. Return value should either be Boolean.FALSE if update is not supported at all (immutable values); Boolean.TRUE if update should usually work (regular POJOs, for example), or null if this is either not known, or may sometimes work.
    Information gathered is typically used to either prevent merging update for property (either by skipping, if based on global defaults; or by exception during deserialization construction if explicit attempt made) if Boolean.FALSE returned, or inclusion if Boolean.TRUE is specified. If "unknown" case (null returned) behavior is to exclude property if global defaults used; or to allow if explicit per-type or property merging is defined.
    Default implementation returns null to allow explicit per-type or per-property attempts.
    
    Overrides:
    
    supportsUpdate in class JsonDeserializer<Object>
  - handledType
```
public Class<?> handledType()
```
    Description copied from class: JsonDeserializer
    
    Method for accessing type of values this deserializer produces. Note that this information is not guaranteed to be exact -- it may be a more generic (super-type) -- but it should not be incorrect (return a non-related type).
    Default implementation will return null, which means almost same same as returning Object.class would; that is, that nothing is known about handled type.
    
    Overrides:
    
    handledType in class StdDeserializer<Object>
  - getObjectIdReader
```
public ObjectIdReader getObjectIdReader()
```
    Overridden to return true for those instances that are handling value for which Object Identity handling is enabled (either via value type or referring property).
    
    Overrides:
    
    getObjectIdReader in class JsonDeserializer<Object>
    
    Returns:
    
    ObjectIdReader used for resolving possible Object Identifier value, instead of full value serialization, if deserializer can do that; null if no Object Id is expected.
  - hasProperty
```
public boolean hasProperty(String propertyName)
```
  - hasViews
```
public boolean hasViews()
```
  - getPropertyCount
```
public int getPropertyCount()
```
    Accessor for checking number of deserialized properties.
  - getKnownPropertyNames
```
public Collection<Object> getKnownPropertyNames()
```
    Description copied from class: JsonDeserializer
    
    Method that will either return null to indicate that type being deserializers has no concept of properties; or a collection of identifiers for which toString will give external property name. This is only to be used for error reporting and diagnostics purposes (most commonly, to accompany "unknown property" exception).
    
    Overrides:
    
    getKnownPropertyNames in class JsonDeserializer<Object>
  - getBeanClass
```
@Deprecated
public final Class<?> getBeanClass()
```
    Deprecated. Since 2.3, use handledType() instead
  - getValueType
```
public JavaType getValueType()
```
    Description copied from class: StdDeserializer
    
    Exact structured type this deserializer handles, if known.
    
    Overrides:
    
    getValueType in class StdDeserializer<Object>
  - properties
```
public Iterator<SettableBeanProperty> properties()
```
    Accessor for iterating over properties this deserializer uses; with the exception that properties passed via Creator methods (specifically, "property-based constructor") are not included, but can be accessed separate by calling creatorProperties()
  - creatorProperties
```
public Iterator<SettableBeanProperty> creatorProperties()
```
    Accessor for finding properties that represents values to pass through property-based creator method (constructor or factory method)
    
    Since:
    
    2.0
  - findProperty
```
public SettableBeanProperty findProperty(PropertyName propertyName)
```
  - findProperty
```
public SettableBeanProperty findProperty(String propertyName)
```
    Accessor for finding the property with given name, if POJO has one. Name used is the external name, i.e. name used in external data representation (JSON).
    
    Since:
    
    2.0
  - findProperty
```
public SettableBeanProperty findProperty(int propertyIndex)
```
    Alternate find method that tries to locate a property with given property index. Note that access by index is not necessarily faster than by name, since properties are not directly indexable; however, for most instances difference is not significant as number of properties is low.
    
    Since:
    
    2.3
  - findBackReference
```
public SettableBeanProperty findBackReference(String logicalName)
```
    Method needed by BeanDeserializerFactory to properly link managed- and back-reference pairs.
    
    Overrides:
    
    findBackReference in class JsonDeserializer<Object>
  - getValueInstantiator
```
public ValueInstantiator getValueInstantiator()
```
    Specified by:
    
    getValueInstantiator in interface ValueInstantiator.Gettable
  - replaceProperty
```
public void replaceProperty(SettableBeanProperty original,
                            SettableBeanProperty replacement)
```
    Method that can be used to replace an existing property with a modified one.
    NOTE: only ever use this method if you know what you are doing; incorrect usage can break deserializer.
    
    Parameters:
    
    original - Property to replace
    
    replacement - Property to replace it with
    
    Since:
    
    2.1
  - deserializeFromObject
```
public abstract Object deserializeFromObject(JsonParser p,
                                             DeserializationContext ctxt)
                                      throws IOException
```
    General version used when handling needs more advanced features.
    
    Throws:
    
    IOException
  - deserializeWithType
```
public Object deserializeWithType(JsonParser p,
                                  DeserializationContext ctxt,
                                  TypeDeserializer typeDeserializer)
                           throws IOException
```
    Description copied from class: StdDeserializer
    
    Base implementation that does not assume specific type inclusion mechanism. Sub-classes are expected to override this method if they are to handle type information.
    
    Overrides:
    
    deserializeWithType in class StdDeserializer<Object>
    
    typeDeserializer - Deserializer to use for handling type information
    
    Throws:
    
    IOException
  - _handleTypedObjectId
```
protected Object _handleTypedObjectId(JsonParser p,
                                      DeserializationContext ctxt,
                                      Object pojo,
                                      Object rawId)
                               throws IOException
```
    Offlined method called to handle "native" Object Id that has been read and known to be associated with given deserialized POJO.
    
    Throws:
    
    IOException
    
    Since:
    
    2.3
  - _convertObjectId
```
protected Object _convertObjectId(JsonParser p,
                                  DeserializationContext ctxt,
                                  Object rawId,
                                  JsonDeserializer<Object> idDeser)
                           throws IOException
```
    Helper method we need to do necessary conversion from whatever native object id type is, into declared type that Jackson internals expect. This may be simple cast (for String ids), or something more complicated; in latter case we may need to create bogus content buffer to allow use of id deserializer.
    
    Throws:
    
    IOException
    
    Since:
    
    2.3
  - deserializeWithObjectId
```
protected Object deserializeWithObjectId(JsonParser p,
                                         DeserializationContext ctxt)
                                  throws IOException
```
    Alternative deserialization method used when we expect to see Object Id; if so, we will need to ensure that the Id is seen before anything else, to ensure that it is available for solving references, even if JSON itself is not ordered that way. This may require buffering in some cases, but usually just a simple lookup to ensure that ordering is correct.
    
    Throws:
    
    IOException
  - deserializeFromObjectId
```
protected Object deserializeFromObjectId(JsonParser p,
                                         DeserializationContext ctxt)
                                  throws IOException
```
    Method called in cases where it looks like we got an Object Id to parse and use as a reference.
    
    Throws:
    
    IOException
  - deserializeFromObjectUsingNonDefault
```
protected Object deserializeFromObjectUsingNonDefault(JsonParser p,
                                                      DeserializationContext ctxt)
                                               throws IOException
```
    Throws:
    
    IOException
  - _deserializeUsingPropertyBased
```
protected abstract Object _deserializeUsingPropertyBased(JsonParser p,
                                                         DeserializationContext ctxt)
                                                  throws IOException
```
    Throws:
    
    IOException
  - deserializeFromNumber
```
public Object deserializeFromNumber(JsonParser p,
                                    DeserializationContext ctxt)
                             throws IOException
```
    Throws:
    
    IOException
  - deserializeFromString
```
public Object deserializeFromString(JsonParser p,
                                    DeserializationContext ctxt)
                             throws IOException
```
    Throws:
    
    IOException
  - deserializeFromDouble
```
public Object deserializeFromDouble(JsonParser p,
                                    DeserializationContext ctxt)
                             throws IOException
```
    Method called to deserialize POJO value from a JSON floating-point number.
    
    Throws:
    
    IOException
  - deserializeFromBoolean
```
public Object deserializeFromBoolean(JsonParser p,
                                     DeserializationContext ctxt)
                              throws IOException
```
    Method called to deserialize POJO value from a JSON boolean value (true, false)
    
    Throws:
    
    IOException
  - deserializeFromArray
```
public Object deserializeFromArray(JsonParser p,
                                   DeserializationContext ctxt)
                            throws IOException
```
    Throws:
    
    IOException
  - deserializeFromEmbedded
```
public Object deserializeFromEmbedded(JsonParser p,
                                      DeserializationContext ctxt)
                               throws IOException
```
    Throws:
    
    IOException
  - injectValues
```
protected void injectValues(DeserializationContext ctxt,
                            Object bean)
                     throws IOException
```
    Throws:
    
    IOException
  - handleUnknownProperties
```
protected Object handleUnknownProperties(DeserializationContext ctxt,
                                         Object bean,
                                         TokenBuffer unknownTokens)
                                  throws IOException
```
    Method called to handle set of one or more unknown properties, stored in their entirety in given TokenBuffer (as field entries, name and value).
    
    Throws:
    
    IOException
  - handleUnknownVanilla
```
protected void handleUnknownVanilla(JsonParser p,
                                    DeserializationContext ctxt,
                                    Object beanOrBuilder,
                                    String propName)
                             throws IOException
```
    Helper method called for an unknown property, when using "vanilla" processing.
    
    Parameters:
    
    beanOrBuilder - Either POJO instance (if constructed), or builder (in case of builder-based approach), that has property we haven't been able to handle yet.
    
    Throws:
    
    IOException
  - handleUnknownProperty
```
protected void handleUnknownProperty(JsonParser p,
                                     DeserializationContext ctxt,
                                     Object beanOrClass,
                                     String propName)
                              throws IOException
```
    Method called when a JSON property is encountered that has not matching setter, any-setter or field, and thus cannot be assigned.
    
    Overrides:
    
    handleUnknownProperty in class StdDeserializer<Object>
    
    Parameters:
    
    p - Parser that points to value of the unknown property
    
    ctxt - Context for deserialization; allows access to the parser, error reporting functionality
    
    beanOrClass - Instance that is being populated by this deserializer, or if not known, Class that would be instantiated. If null, will assume type is what StdDeserializer.getValueClass() returns.
    
    propName - Name of the property that cannot be mapped
    
    Throws:
    
    IOException
  - handleIgnoredProperty
```
protected void handleIgnoredProperty(JsonParser p,
                                     DeserializationContext ctxt,
                                     Object beanOrClass,
                                     String propName)
                              throws IOException
```
    Method called when an explicitly ignored property (one specified with a name to match, either by property annotation or class annotation) is encountered.
    
    Throws:
    
    IOException
    
    Since:
    
    2.3
  - handlePolymorphic
```
protected Object handlePolymorphic(JsonParser p,
                                   DeserializationContext ctxt,
                                   Object bean,
                                   TokenBuffer unknownTokens)
                            throws IOException
```
    Method called in cases where we may have polymorphic deserialization case: that is, type of Creator-constructed bean is not the type of deserializer itself. It should be a sub-class or implementation class; either way, we may have more specific deserializer to use for handling it.
    
    Parameters:
    
    p - (optional) If not null, parser that has more properties to handle (in addition to buffered properties); if null, all properties are passed in buffer
    
    Throws:
    
    IOException
  - _findSubclassDeserializer
```
protected JsonDeserializer<Object> _findSubclassDeserializer(DeserializationContext ctxt,
                                                             Object bean,
                                                             TokenBuffer unknownTokens)
                                                      throws IOException
```
    Helper method called to (try to) locate deserializer for given sub-type of type that this deserializer handles.
    
    Throws:
    
    IOException
  - wrapAndThrow
```
public void wrapAndThrow(Throwable t,
                         Object bean,
                         String fieldName,
                         DeserializationContext ctxt)
                  throws IOException
```
    Method that will modify caught exception (passed in as argument) as necessary to include reference information, and to ensure it is a subtype of IOException, or an unchecked exception.
    Rules for wrapping and unwrapping are bit complicated; essentially:
    - Errors are to be passed as is (if uncovered via unwrapping)
    - "Plain" IOExceptions (ones that are not of type JsonMappingException are to be passed as is
    Throws:
    
    IOException
  - wrapInstantiationProblem
```
protected Object wrapInstantiationProblem(Throwable t,
                                          DeserializationContext ctxt)
                                   throws IOException
```
    Throws:
    
    IOException

Class BeanDeserializerBase

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

Field Summary

Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

Constructor Summary

Method Summary

Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

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

Methods inherited from class java.lang.Object

Field Detail

TEMP_PROPERTY_NAME

_beanType

_serializationShape

_valueInstantiator

_delegateDeserializer

_arrayDelegateDeserializer

_propertyBasedCreator

_nonStandardCreation

_vanillaProcessing

_beanProperties

_injectables

_anySetter

_ignorableProps

_ignoreAllUnknown

_needViewProcesing

_backRefs

_subDeserializers

_unwrappedPropertyHandler

_externalTypeIdHandler

_objectIdReader

Constructor Detail

BeanDeserializerBase

BeanDeserializerBase

BeanDeserializerBase

BeanDeserializerBase

BeanDeserializerBase

BeanDeserializerBase

BeanDeserializerBase

Method Detail

unwrappingDeserializer

withObjectIdReader

withIgnorableProperties

withBeanProperties

asArrayDeserializer

resolve

_replaceProperty

findConvertingDeserializer

createContextual

_resolveManagedReferenceProperty

_resolvedObjectIdProperty

_findPropertyUnwrapper

_resolveInnerClassValuedProperty

_resolveMergeAndNullSettings

getNullAccessPattern

getEmptyAccessPattern

getEmptyValue

isCachable

supportsUpdate

handledType

getObjectIdReader

hasProperty

hasViews

getPropertyCount

getKnownPropertyNames

getBeanClass

getValueType

properties

creatorProperties

findProperty

findProperty

findProperty

findBackReference

getValueInstantiator

replaceProperty

deserializeFromObject

deserializeWithType

_handleTypedObjectId

_convertObjectId

deserializeWithObjectId