com.fasterxml.jackson.databind.deser.impl

Class PropertyBasedCreator

java.lang.Object

com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator

public final class PropertyBasedCreator
extends Object

Object that is used to collect arguments for non-default creator (non-default-constructor, or argument-taking factory method) before creator can be called. Since ordering of JSON properties is not guaranteed, this may require buffering of values other than ones being passed to creator.

Field Summary

Fields

Modifier and Type	Field and Description
protected Object[]	_defaultValues If some property values must always have a non-null value (like primitive types do), this array contains such default values.
protected HashMap<String,SettableBeanProperty>	_properties Map that contains property objects for either constructor or factory method (whichever one is null: one property for each parameter for that one), keyed by logical property name
protected SettableBeanProperty[]	_propertiesWithInjectables Array that contains properties that expect value to inject, if any; null if no injectable values are expected.
protected int	_propertyCount Number of properties: usually same as size of _properties, but not necessarily, when we have unnamed injectable properties.
protected ValueInstantiator	_valueInstantiator

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PropertyBasedCreator(ValueInstantiator valueInstantiator, SettableBeanProperty[] creatorProps, Object[] defaultValues)

Method Summary

Methods

Modifier and Type	Method and Description
void	assignDeserializer(SettableBeanProperty prop, JsonDeserializer<Object> deser)
Object	build(DeserializationContext ctxt, PropertyValueBuffer buffer)
static PropertyBasedCreator	construct(DeserializationContext ctxt, ValueInstantiator valueInstantiator, SettableBeanProperty[] srcProps) Factory method used for building actual instances: resolves deserializers and checks for "null values".
SettableBeanProperty	findCreatorProperty(int propertyIndex)
SettableBeanProperty	findCreatorProperty(String name)
Collection<SettableBeanProperty>	properties()
PropertyValueBuffer	startBuilding(com.fasterxml.jackson.core.JsonParser jp, DeserializationContext ctxt, ObjectIdReader oir) Method called when starting to build a bean instance.

Methods inherited from class java.lang.Object

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

Field Detail

_valueInstantiator

protected final ValueInstantiator _valueInstantiator

_properties

protected final HashMap<String,SettableBeanProperty> _properties

Map that contains property objects for either constructor or factory method (whichever one is null: one property for each parameter for that one), keyed by logical property name

_propertyCount

protected final int _propertyCount

Number of properties: usually same as size of _properties, but not necessarily, when we have unnamed injectable properties.

_defaultValues

protected final Object[] _defaultValues

If some property values must always have a non-null value (like primitive types do), this array contains such default values.

_propertiesWithInjectables

protected final SettableBeanProperty[] _propertiesWithInjectables

Array that contains properties that expect value to inject, if any; null if no injectable values are expected.

Constructor Detail

PropertyBasedCreator

protected PropertyBasedCreator(ValueInstantiator valueInstantiator,
                    SettableBeanProperty[] creatorProps,
                    Object[] defaultValues)

Method Detail

construct

public static PropertyBasedCreator construct(DeserializationContext ctxt,
                             ValueInstantiator valueInstantiator,
                             SettableBeanProperty[] srcProps)
                                      throws JsonMappingException

Factory method used for building actual instances: resolves deserializers and checks for "null values".

Throws:

JsonMappingException

assignDeserializer

public void assignDeserializer(SettableBeanProperty prop,
                      JsonDeserializer<Object> deser)

properties

public Collection<SettableBeanProperty> properties()

findCreatorProperty

public SettableBeanProperty findCreatorProperty(String name)

findCreatorProperty

public SettableBeanProperty findCreatorProperty(int propertyIndex)

startBuilding

public PropertyValueBuffer startBuilding(com.fasterxml.jackson.core.JsonParser jp,
                                DeserializationContext ctxt,
                                ObjectIdReader oir)

Method called when starting to build a bean instance.

Since:

2.1 (added ObjectIdReader parameter -- existed in previous versions without)

build

public Object build(DeserializationContext ctxt,
           PropertyValueBuffer buffer)
             throws IOException

Throws:

IOException