com.fasterxml.jackson.databind.deser

Class CreatorProperty

java.lang.Object

com.fasterxml.jackson.databind.deser.SettableBeanProperty

com.fasterxml.jackson.databind.deser.CreatorProperty

All Implemented Interfaces:

BeanProperty, Named, Serializable

public class CreatorProperty
extends SettableBeanProperty

This concrete sub-class implements property that is passed via Creator (constructor or static factory method). It is not a full-featured implementation in that its set method should never be called -- instead, value must separately passed.

Note on injectable values: unlike with other mutators, where deserializer and injecting are separate, here we treat the two as related things. This is necessary to add proper priority, as well as to simplify coordination.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.fasterxml.jackson.databind.BeanProperty

BeanProperty.Std

Field Summary

Fields

Modifier and Type	Field and Description
protected AnnotatedParameter	_annotated Placeholder that represents constructor parameter, when it is created from actual constructor.
protected int	_creatorIndex
protected SettableBeanProperty	_fallbackSetter In special cases, when implementing "updateValue", we can not use constructors or factory methods, but have to fall back on using a setter (or mutable field property).
protected Object	_injectableValueId Id of value to inject, if value injection should be used for this parameter (in addition to, or instead of, regular deserialization).

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

_contextAnnotations, _managedReferenceName, _metadata, _objectIdInfo, _propertyIndex, _propName, _type, _valueDeserializer, _valueTypeDeserializer, _viewMatcher, _wrapperName, MISSING_VALUE_DESERIALIZER

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CreatorProperty(CreatorProperty src, JsonDeserializer<?> deser)
protected	CreatorProperty(CreatorProperty src, PropertyName newName)
	CreatorProperty(PropertyName name, JavaType type, PropertyName wrapperName, TypeDeserializer typeDeser, Annotations contextAnnotations, AnnotatedParameter param, int index, Object injectableValueId, PropertyMetadata metadata)

Method Summary

Modifier and Type	Method and Description
void	deserializeAndSet(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt, Object instance) Method called to deserialize appropriate value, given parser (and context), and set it using appropriate mechanism.
Object	deserializeSetAndReturn(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt, Object instance) Alternative to SettableBeanProperty.deserializeAndSet(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext, java.lang.Object) that returns either return value of setter method called (if one is), or null to indicate that no return value is available.
Object	findInjectableValue(DeserializationContext context, Object beanInstance) Method that can be called to locate value to be injected for this property, if it is configured for this.
<A extends Annotation> A	getAnnotation(Class<A> acls) Method for finding annotation associated with this property; meaning annotation associated with one of entities used to access property.
int	getCreatorIndex() Method for accessing index of the creator property: for other types of properties will simply return -1.
Object	getInjectableValueId() Accessor for id of injectable value, if this bean property supports value injection.
AnnotatedMember	getMember() Method for accessing primary physical entity that represents the property; annotated field, method or constructor property.
void	inject(DeserializationContext context, Object beanInstance) Method to find value to inject, and inject it to this property.
void	set(Object instance, Object value) Method called to assign given value to this property, on specified Object.
Object	setAndReturn(Object instance, Object value) Method called to assign given value to this property, on specified Object, and return whatever delegating accessor returned (if anything)
void	setFallbackSetter(SettableBeanProperty fallbackSetter) NOTE: one exception to immutability, due to problems with CreatorProperty instances being shared between Bean, separate PropertyBasedCreator
String	toString()
CreatorProperty	withName(PropertyName newName) Fluent factory method for constructing and returning a new instance with specified property name.
CreatorProperty	withValueDeserializer(JsonDeserializer<?> deser) Fluent factory method for constructing and returning a new instance with specified value deserializer.

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

_throwAsIOE, _throwAsIOE, assignIndex, depositSchemaProperty, deserialize, findFormatOverrides, getContextAnnotation, getDeclaringClass, getFullName, getManagedReferenceName, getMetadata, getName, getObjectIdInfo, getPropertyIndex, getType, getValueDeserializer, getValueTypeDeserializer, getWrapperName, hasValueDeserializer, hasValueTypeDeserializer, hasViews, isRequired, setManagedReferenceName, setObjectIdInfo, setViews, visibleInView, withName, withSimpleName

Methods inherited from class java.lang.Object

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

Field Detail

_annotated

protected final AnnotatedParameter _annotated

Placeholder that represents constructor parameter, when it is created from actual constructor. May be null when a synthetic instance is created.

_injectableValueId

protected final Object _injectableValueId

Id of value to inject, if value injection should be used for this parameter (in addition to, or instead of, regular deserialization).

_creatorIndex

protected final int _creatorIndex

Since:

2.1

_fallbackSetter

protected SettableBeanProperty _fallbackSetter

In special cases, when implementing "updateValue", we can not use constructors or factory methods, but have to fall back on using a setter (or mutable field property). If so, this refers to that fallback accessor.

Mutable only to allow setting after construction, but must be strictly set before any use.

Since:

2.3

Constructor Detail

CreatorProperty

public CreatorProperty(PropertyName name,
                       JavaType type,
                       PropertyName wrapperName,
                       TypeDeserializer typeDeser,
                       Annotations contextAnnotations,
                       AnnotatedParameter param,
                       int index,
                       Object injectableValueId,
                       PropertyMetadata metadata)

Parameters:

name - Name of the logical property

type - Type of the property, used to find deserializer

typeDeser - Type deserializer to use for handling polymorphic type information, if one is needed

contextAnnotations - Contextual annotations (usually by class that declares creator [constructor, factory method] that includes this property)

param - Representation of property, constructor or factory method parameter; used for accessing annotations of the property

index - Index of this property within creator invocation

Since:

2.3

CreatorProperty

protected CreatorProperty(CreatorProperty src,
                          PropertyName newName)

Since:

2.3

CreatorProperty

protected CreatorProperty(CreatorProperty src,
                          JsonDeserializer<?> deser)

Method Detail

withName

public CreatorProperty withName(PropertyName newName)

Description copied from class: SettableBeanProperty

Fluent factory method for constructing and returning a new instance with specified property name. Note that this method should NOT change configuration of this instance.

Specified by:

withName in class SettableBeanProperty

Parameters:

newName - Name to use for the new instance.

Returns:

Newly constructed instance, if property name differs from the one used for this instance; or 'this' if not.

withValueDeserializer

public CreatorProperty withValueDeserializer(JsonDeserializer<?> deser)

Description copied from class: SettableBeanProperty

Fluent factory method for constructing and returning a new instance with specified value deserializer. Note that this method should NOT change configuration of this instance.

Specified by:

withValueDeserializer in class SettableBeanProperty

Parameters:

deser - Deserializer to assign to the new property instance

Returns:

Newly constructed instance, if value deserializer differs from the one used for this instance; or 'this' if not.

setFallbackSetter

public void setFallbackSetter(SettableBeanProperty fallbackSetter)

NOTE: one exception to immutability, due to problems with CreatorProperty instances being shared between Bean, separate PropertyBasedCreator

Since:

2.6.0

findInjectableValue

public Object findInjectableValue(DeserializationContext context,
                                  Object beanInstance)

Method that can be called to locate value to be injected for this property, if it is configured for this.

inject

public void inject(DeserializationContext context,
                   Object beanInstance)
            throws IOException

Method to find value to inject, and inject it to this property.

Throws:

IOException

getAnnotation

public <A extends Annotation> A getAnnotation(Class<A> acls)

Description copied from interface: BeanProperty

Method for finding annotation associated with this property; meaning annotation associated with one of entities used to access property.

Note that this method should only be called for custom annotations; access to standard Jackson annotations (or ones supported by alternate AnnotationIntrospectors) should be accessed through AnnotationIntrospector.

Specified by:

getAnnotation in interface BeanProperty

Specified by:

getAnnotation in class SettableBeanProperty

getMember

public AnnotatedMember getMember()

Description copied from interface: BeanProperty

Method for accessing primary physical entity that represents the property; annotated field, method or constructor property.

Specified by:

getMember in interface BeanProperty

Specified by:

getMember in class SettableBeanProperty

getCreatorIndex

public int getCreatorIndex()

Description copied from class: SettableBeanProperty

Method for accessing index of the creator property: for other types of properties will simply return -1.

Overrides:

getCreatorIndex in class SettableBeanProperty

deserializeAndSet

public void deserializeAndSet(com.fasterxml.jackson.core.JsonParser jp,
                              DeserializationContext ctxt,
                              Object instance)
                       throws IOException,
                              com.fasterxml.jackson.core.JsonProcessingException

Description copied from class: SettableBeanProperty

Method called to deserialize appropriate value, given parser (and context), and set it using appropriate mechanism. Pre-condition is that passed parser must point to the first token that should be consumed to produce the value (the only value for scalars, multiple for Objects and Arrays).

Specified by:

deserializeAndSet in class SettableBeanProperty

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

deserializeSetAndReturn

public Object deserializeSetAndReturn(com.fasterxml.jackson.core.JsonParser jp,
                                      DeserializationContext ctxt,
                                      Object instance)
                               throws IOException,
                                      com.fasterxml.jackson.core.JsonProcessingException

Description copied from class: SettableBeanProperty

Alternative to SettableBeanProperty.deserializeAndSet(com.fasterxml.jackson.core.JsonParser, com.fasterxml.jackson.databind.DeserializationContext, java.lang.Object) that returns either return value of setter method called (if one is), or null to indicate that no return value is available. Mostly used to support Builder style deserialization.

Specified by:

deserializeSetAndReturn in class SettableBeanProperty

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

set

public void set(Object instance,
                Object value)
         throws IOException

Description copied from class: SettableBeanProperty

Method called to assign given value to this property, on specified Object.

Note: this is an optional operation, not supported by all implementations, creator-backed properties for example do not support this method.

Specified by:

set in class SettableBeanProperty

Throws:

IOException

setAndReturn

public Object setAndReturn(Object instance,
                           Object value)
                    throws IOException

Description copied from class: SettableBeanProperty

Method called to assign given value to this property, on specified Object, and return whatever delegating accessor returned (if anything)

Note: this is an optional operation, not supported by all implementations, creator-backed properties for example do not support this method.

Specified by:

setAndReturn in class SettableBeanProperty

Throws:

IOException

getInjectableValueId

public Object getInjectableValueId()

Description copied from class: SettableBeanProperty

Accessor for id of injectable value, if this bean property supports value injection.

Overrides:

getInjectableValueId in class SettableBeanProperty

toString

public String toString()

Overrides:

toString in class SettableBeanProperty