Package com.fasterxml.jackson.databind.deser

Class BeanDeserializer

java.lang.Object

com.fasterxml.jackson.databind.JsonDeserializer<T>

com.fasterxml.jackson.databind.deser.std.StdDeserializer<java.lang.Object>

com.fasterxml.jackson.databind.deser.BeanDeserializerBase

com.fasterxml.jackson.databind.deser.BeanDeserializer

All Implemented Interfaces:

ContextualDeserializer, NullValueProvider, ResolvableDeserializer, ValueInstantiator.Gettable, java.io.Serializable

Direct Known Subclasses:

ThrowableDeserializer

public class BeanDeserializer
extends BeanDeserializerBase
implements java.io.Serializable

Deserializer class that can deserialize instances of arbitrary bean objects, usually from JSON Object structs,

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	Description
protected java.lang.Exception	_nullFromCreator	Lazily constructed exception used as root cause if reporting problem with creator method that returns null (which is not allowed)

Fields inherited from class com.fasterxml.jackson.databind.deser.BeanDeserializerBase

_anySetter, _arrayDelegateDeserializer, _backRefs, _beanProperties, _beanType, _delegateDeserializer, _externalTypeIdHandler, _ignorableProps, _ignoreAllUnknown, _includableProps, _injectables, _needViewProcesing, _nonStandardCreation, _objectIdReader, _propertyBasedCreator, _serializationShape, _subDeserializers, _unwrappedPropertyHandler, _valueInstantiator, _vanillaProcessing, 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	Description
protected	BeanDeserializer(BeanDeserializerBase src)	Copy-constructor that can be used by sub-classes to allow copy-on-write style copying of settings of an existing instance.
protected	BeanDeserializer(BeanDeserializerBase src, boolean ignoreAllUnknown)
	BeanDeserializer(BeanDeserializerBase src, BeanPropertyMap props)
	BeanDeserializer(BeanDeserializerBase src, ObjectIdReader oir)
protected	BeanDeserializer(BeanDeserializerBase src, NameTransformer unwrapper)
	BeanDeserializer(BeanDeserializerBase src, java.util.Set<java.lang.String> ignorableProps)	Deprecated. in 2.12, remove from 3.0
	BeanDeserializer(BeanDeserializerBase src, java.util.Set<java.lang.String> ignorableProps, java.util.Set<java.lang.String> includableProps)
	BeanDeserializer(BeanDeserializerBuilder builder, BeanDescription beanDesc, BeanPropertyMap properties, java.util.Map<java.lang.String,SettableBeanProperty> backRefs, java.util.HashSet<java.lang.String> ignorableProps, boolean ignoreAllUnknown, boolean hasViews)	Deprecated. in 2.12, remove from 3.0
	BeanDeserializer(BeanDeserializerBuilder builder, BeanDescription beanDesc, BeanPropertyMap properties, java.util.Map<java.lang.String,SettableBeanProperty> backRefs, java.util.HashSet<java.lang.String> ignorableProps, boolean ignoreAllUnknown, java.util.Set<java.lang.String> includableProps, boolean hasViews)	Constructor used by BeanDeserializerBuilder.

Method Summary

Modifier and Type	Method	Description
protected java.lang.Exception	_creatorReturnedNullException()	Helper method for getting a lazily construct exception to be reported to DeserializationContext.handleInstantiationProblem(Class, Object, Throwable).
protected java.lang.Object	_deserializeFromArray(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	Helper method that allows easy support for array-related coercion features: checks for either empty array, or single-value array-wrapped value (if coercion enabled by CoercionConfigs (since 2.12), and either reports an exception (if no coercion allowed), or returns appropriate result value using coercion mechanism indicated.
protected java.lang.Object	_deserializeOther(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, com.fasterxml.jackson.core.JsonToken t)
protected java.lang.Object	_deserializeUsingPropertyBased(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	Method called to deserialize bean using "property-based creator": this means that a non-default constructor or factory method is called, and then possibly other setters.
protected java.lang.Object	_deserializeWithErrorWrapping(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, SettableBeanProperty prop)
protected java.lang.Object	_deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, java.lang.Object bean, ExternalTypeHandler ext)
protected BeanDeserializerBase	asArrayDeserializer()	Fluent factory for creating a variant that can handle POJO output as a JSON Array.
java.lang.Object	deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	Main deserialization method for bean-based objects (POJOs).
java.lang.Object	deserialize(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, java.lang.Object bean)	Secondary deserialization method, called in cases where POJO instance is created as part of deserialization, potentially after collecting some or all of the properties to set.
protected java.lang.Object	deserializeFromNull(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	Helper method called for rare case of pointing to JsonToken.VALUE_NULL token.
java.lang.Object	deserializeFromObject(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	General version used when handling needs more advanced features.
protected java.lang.Object	deserializeUsingPropertyBasedWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)
protected java.lang.Object	deserializeUsingPropertyBasedWithUnwrapped(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)
protected java.lang.Object	deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)
protected java.lang.Object	deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, java.lang.Object bean)
protected java.lang.Object	deserializeWithUnwrapped(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt)	Method called when there are declared "unwrapped" properties which need special handling
protected java.lang.Object	deserializeWithUnwrapped(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, java.lang.Object bean)
protected java.lang.Object	deserializeWithView(com.fasterxml.jackson.core.JsonParser p, DeserializationContext ctxt, java.lang.Object bean, java.lang.Class<?> activeView)
JsonDeserializer<java.lang.Object>	unwrappingDeserializer(NameTransformer transformer)	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.
BeanDeserializer	withByNameInclusion(java.util.Set<java.lang.String> ignorableProps, java.util.Set<java.lang.String> includableProps)
BeanDeserializerBase	withIgnoreAllUnknown(boolean ignoreUnknown)
BeanDeserializer	withObjectIdReader(ObjectIdReader oir)

Methods inherited from class com.fasterxml.jackson.databind.deser.BeanDeserializerBase

_convertObjectId, _delegateDeserializer, _findPropertyUnwrapper, _findSubclassDeserializer, _getSetterInfo, _handleByNameInclusion, _handleTypedObjectId, _replaceProperty, _resolvedObjectIdProperty, _resolveInnerClassValuedProperty, _resolveManagedReferenceProperty, _resolveMergeAndNullSettings, createContextual, creatorProperties, deserializeFromArray, deserializeFromBoolean, deserializeFromDouble, deserializeFromEmbedded, deserializeFromNumber, deserializeFromObjectId, deserializeFromObjectUsingNonDefault, deserializeFromString, deserializeWithObjectId, deserializeWithType, findBackReference, findConvertingDeserializer, findProperty, findProperty, findProperty, getBeanClass, getEmptyAccessPattern, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getObjectIdReader, getPropertyCount, getValueInstantiator, getValueType, handledType, handleIgnoredProperty, handlePolymorphic, handlePolymorphic, handleUnknownProperties, handleUnknownProperty, handleUnknownVanilla, hasProperty, hasViews, injectValues, isCachable, isCaseInsensitive, logicalType, properties, replaceProperty, resolve, supportsUpdate, withIgnorableProperties, wrapAndThrow, wrapInstantiationProblem

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

_byteOverflow, _checkBooleanToStringCoercion, _checkCoercionFail, _checkDoubleSpecialValue, _checkFloatSpecialValue, _checkFloatToIntCoercion, _checkFloatToStringCoercion, _checkFromStringCoercion, _checkFromStringCoercion, _checkIntToFloatCoercion, _checkIntToStringCoercion, _checkTextualNull, _checkToStringCoercion, _coerceBooleanFromInt, _coercedTypeDesc, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromEmpty, _deserializeFromEmptyString, _deserializeFromString, _deserializeWrappedValue, _failDoubleToIntCoercion, _findCoercionFromBlankString, _findCoercionFromEmptyArray, _findCoercionFromEmptyString, _findNullProvider, _hasTextualNull, _intOverflow, _isBlank, _isEmptyOrTextualNull, _isFalse, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _isTrue, _neitherNull, _nonNullNumber, _parseBoolean, _parseBooleanFromInt, _parseBooleanPrimitive, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDouble, _parseDouble, _parseDoublePrimitive, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseInteger, _parseInteger, _parseIntPrimitive, _parseIntPrimitive, _parseLong, _parseLong, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _verifyNullForScalarCoercion, _verifyNumberForScalarCoercion, _verifyStringForScalarCoercion, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, isDefaultDeserializer, isDefaultKeyDeserializer

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

deserializeWithType, getAbsentValue, 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

_nullFromCreator

protected transient java.lang.Exception _nullFromCreator

Lazily constructed exception used as root cause if reporting problem with creator method that returns null (which is not allowed)

Since:

2.8

Constructor Detail

BeanDeserializer

@Deprecated
public BeanDeserializer(BeanDeserializerBuilder builder,
                        BeanDescription beanDesc,
                        BeanPropertyMap properties,
                        java.util.Map<java.lang.String,SettableBeanProperty> backRefs,
                        java.util.HashSet<java.lang.String> ignorableProps,
                        boolean ignoreAllUnknown,
                        boolean hasViews)

Deprecated.

in 2.12, remove from 3.0

Constructor used by BeanDeserializerBuilder.

BeanDeserializer

public BeanDeserializer(BeanDeserializerBuilder builder,
                        BeanDescription beanDesc,
                        BeanPropertyMap properties,
                        java.util.Map<java.lang.String,SettableBeanProperty> backRefs,
                        java.util.HashSet<java.lang.String> ignorableProps,
                        boolean ignoreAllUnknown,
                        java.util.Set<java.lang.String> includableProps,
                        boolean hasViews)

Constructor used by BeanDeserializerBuilder.

Since:

2.12

BeanDeserializer

protected BeanDeserializer(BeanDeserializerBase src)

Copy-constructor that can be used by sub-classes to allow copy-on-write style copying of settings of an existing instance.

BeanDeserializer

protected BeanDeserializer(BeanDeserializerBase src,
                           boolean ignoreAllUnknown)

BeanDeserializer

protected BeanDeserializer(BeanDeserializerBase src,
                           NameTransformer unwrapper)

BeanDeserializer

public BeanDeserializer(BeanDeserializerBase src,
                        ObjectIdReader oir)

BeanDeserializer

@Deprecated
public BeanDeserializer(BeanDeserializerBase src,
                        java.util.Set<java.lang.String> ignorableProps)

Deprecated.

in 2.12, remove from 3.0

BeanDeserializer

public BeanDeserializer(BeanDeserializerBase src,
                        java.util.Set<java.lang.String> ignorableProps,
                        java.util.Set<java.lang.String> includableProps)

Since:

2.12

BeanDeserializer

public BeanDeserializer(BeanDeserializerBase src,
                        BeanPropertyMap props)

Method Detail

unwrappingDeserializer

public JsonDeserializer<java.lang.Object> unwrappingDeserializer(NameTransformer transformer)

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

Specified by:

unwrappingDeserializer in class BeanDeserializerBase

withObjectIdReader

public BeanDeserializer withObjectIdReader(ObjectIdReader oir)

Specified by:

withObjectIdReader in class BeanDeserializerBase

withByNameInclusion

public BeanDeserializer withByNameInclusion(java.util.Set<java.lang.String> ignorableProps,
                                            java.util.Set<java.lang.String> includableProps)

Specified by:

withByNameInclusion in class BeanDeserializerBase

withIgnoreAllUnknown

public BeanDeserializerBase withIgnoreAllUnknown(boolean ignoreUnknown)

Specified by:

withIgnoreAllUnknown in class BeanDeserializerBase

withBeanProperties

public BeanDeserializerBase withBeanProperties(BeanPropertyMap props)

Description copied from class: BeanDeserializerBase

Mutant factory method that custom sub-classes must override; not left as abstract to prevent more drastic backwards compatibility problems.

Overrides:

withBeanProperties in class BeanDeserializerBase

asArrayDeserializer

protected BeanDeserializerBase asArrayDeserializer()

Description copied from class: BeanDeserializerBase

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.

Specified by:

asArrayDeserializer in class BeanDeserializerBase

deserialize

public java.lang.Object deserialize(com.fasterxml.jackson.core.JsonParser p,
                                    DeserializationContext ctxt)
                             throws java.io.IOException

Main deserialization method for bean-based objects (POJOs).

Specified by:

deserialize in class JsonDeserializer<java.lang.Object>

Parameters:

p - Parser used for reading JSON content

ctxt - Context that can be used to access information about this deserialization activity.

Returns:

Deserialized value

Throws:

java.io.IOException

_deserializeOther

protected final java.lang.Object _deserializeOther(com.fasterxml.jackson.core.JsonParser p,
                                                   DeserializationContext ctxt,
                                                   com.fasterxml.jackson.core.JsonToken t)
                                            throws java.io.IOException

Throws:

java.io.IOException

deserialize

public java.lang.Object deserialize(com.fasterxml.jackson.core.JsonParser p,
                                    DeserializationContext ctxt,
                                    java.lang.Object bean)
                             throws java.io.IOException

Secondary deserialization method, called in cases where POJO instance is created as part of deserialization, potentially after collecting some or all of the properties to set.

Overrides:

deserialize in class JsonDeserializer<java.lang.Object>

Throws:

java.io.IOException

deserializeFromObject

public java.lang.Object deserializeFromObject(com.fasterxml.jackson.core.JsonParser p,
                                              DeserializationContext ctxt)
                                       throws java.io.IOException

General version used when handling needs more advanced features.

Specified by:

deserializeFromObject in class BeanDeserializerBase

Throws:

java.io.IOException

_deserializeUsingPropertyBased

protected java.lang.Object _deserializeUsingPropertyBased(com.fasterxml.jackson.core.JsonParser p,
                                                          DeserializationContext ctxt)
                                                   throws java.io.IOException

Method called to deserialize bean using "property-based creator": this means that a non-default constructor or factory method is called, and then possibly other setters. The trick is that values for creator method need to be buffered, first; and due to non-guaranteed ordering possibly some other properties as well.

Specified by:

_deserializeUsingPropertyBased in class BeanDeserializerBase

Throws:

java.io.IOException

_deserializeWithErrorWrapping

protected final java.lang.Object _deserializeWithErrorWrapping(com.fasterxml.jackson.core.JsonParser p,
                                                               DeserializationContext ctxt,
                                                               SettableBeanProperty prop)
                                                        throws java.io.IOException

Throws:

java.io.IOException

deserializeFromNull

protected java.lang.Object deserializeFromNull(com.fasterxml.jackson.core.JsonParser p,
                                               DeserializationContext ctxt)
                                        throws java.io.IOException

Helper method called for rare case of pointing to JsonToken.VALUE_NULL token. While this is most often an erroneous condition, there is one specific case with XML handling where polymorphic type with no properties is exposed as such, and should be handled same as empty Object.

Throws:

java.io.IOException

Since:

2.7

_deserializeFromArray

protected java.lang.Object _deserializeFromArray(com.fasterxml.jackson.core.JsonParser p,
                                                 DeserializationContext ctxt)
                                          throws java.io.IOException

Description copied from class: StdDeserializer

Helper method that allows easy support for array-related coercion features: checks for either empty array, or single-value array-wrapped value (if coercion enabled by CoercionConfigs (since 2.12), and either reports an exception (if no coercion allowed), or returns appropriate result value using coercion mechanism indicated.

This method should NOT be called if Array representation is explicitly supported for type: it should only be called in case it is otherwise unrecognized.

NOTE: in case of unwrapped single element, will handle actual decoding by calling StdDeserializer._deserializeWrappedValue(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext), which by default calls JsonDeserializer.deserialize(JsonParser, DeserializationContext).

Overrides:

_deserializeFromArray in class StdDeserializer<java.lang.Object>

Throws:

java.io.IOException

deserializeWithView

protected final java.lang.Object deserializeWithView(com.fasterxml.jackson.core.JsonParser p,
                                                     DeserializationContext ctxt,
                                                     java.lang.Object bean,
                                                     java.lang.Class<?> activeView)
                                              throws java.io.IOException

Throws:

java.io.IOException

deserializeWithUnwrapped

protected java.lang.Object deserializeWithUnwrapped(com.fasterxml.jackson.core.JsonParser p,
                                                    DeserializationContext ctxt)
                                             throws java.io.IOException

Method called when there are declared "unwrapped" properties which need special handling

Throws:

java.io.IOException

deserializeWithUnwrapped

protected java.lang.Object deserializeWithUnwrapped(com.fasterxml.jackson.core.JsonParser p,
                                                    DeserializationContext ctxt,
                                                    java.lang.Object bean)
                                             throws java.io.IOException

Throws:

java.io.IOException

deserializeUsingPropertyBasedWithUnwrapped

protected java.lang.Object deserializeUsingPropertyBasedWithUnwrapped(com.fasterxml.jackson.core.JsonParser p,
                                                                      DeserializationContext ctxt)
                                                               throws java.io.IOException

Throws:

java.io.IOException

deserializeWithExternalTypeId

protected java.lang.Object deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p,
                                                         DeserializationContext ctxt)
                                                  throws java.io.IOException

Throws:

java.io.IOException

deserializeWithExternalTypeId

protected java.lang.Object deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p,
                                                         DeserializationContext ctxt,
                                                         java.lang.Object bean)
                                                  throws java.io.IOException

Throws:

java.io.IOException

_deserializeWithExternalTypeId

protected java.lang.Object _deserializeWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p,
                                                          DeserializationContext ctxt,
                                                          java.lang.Object bean,
                                                          ExternalTypeHandler ext)
                                                   throws java.io.IOException

Throws:

java.io.IOException

deserializeUsingPropertyBasedWithExternalTypeId

protected java.lang.Object deserializeUsingPropertyBasedWithExternalTypeId(com.fasterxml.jackson.core.JsonParser p,
                                                                           DeserializationContext ctxt)
                                                                    throws java.io.IOException

Throws:

java.io.IOException

_creatorReturnedNullException

protected java.lang.Exception _creatorReturnedNullException()

Helper method for getting a lazily construct exception to be reported to DeserializationContext.handleInstantiationProblem(Class, Object, Throwable).

Since:

2.8